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Commercial Demonstration Of The Noxso So2 No3 Removal Flue Gas Cleanup System Quarterly Technical Progress Report No 3 September 1 November 30 1991
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Book Synopsis Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 3, September 1--November 30, 1991 by :
Download or read book Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 3, September 1--November 30, 1991 written by and published by . This book was released on 1991 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NOXSO Process is a dry, post-combustion flue gas treatment technology which uses a regenerable sorbent to simultaneously adsorb sulfur dioxide and nitrogen oxides from the flue gas of a coal-fired utility boiler. In the process, the SO2 is reduced to elemental sulfur and the NOx is reduced to nitrogen and oxygen. It is predicted that the process can economically remove 90% of the acid rain precursor gases from the flue gas stream in a retrofit or new facility. The objective of the NOXSO Demonstration Project is to design, construct, and operate a flue gas treatment system utilizing the NOXSO Process at Ohio Edisons̀ Niles Plant Unit 1. The effectiveness of the process will be demonstrated by achieving significant reductions in emissions of sulfur and nitrogen oxides. In addition, sufficient operating data will be obtained to confirm the process economics and provide a basis to guarantee performance on a commercial scale. Ohio Edisons̀ Niles Plant Unit 1 generates 115 MW of electricity and 275,000 scfm of flue gas while burning 3.5% sulfur coal.
Book Synopsis Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 11, September 1--November 30, 1993 by :
Download or read book Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 11, September 1--November 30, 1993 written by and published by . This book was released on 1993 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NOXSO process is a dry, post-combustion flue gas treatment technology which uses a regenerable sorbent to simultaneously adsorb sulfur dioxide (SO2) and nitrogen oxides (NO3 from the flue gas of a coal-fired utility boiler. In the process, the SO2 is reduced to sulfur by-product and the NO3 is reduced to nitrogen and oxygen. It is predicted that the process can economically remove 90% of the acid rain precursor gases from the flue gas stream in a retrofit or new facility. The objective of the NOXSO Demonstration Project is to design, construct, and operate a flue gas treatment system utilizing the NOXSO process. The effectiveness of the process will be demonstrated by achieving significant reductions in emissions of sulfur and nitrogen oxides. In addition, sufficient operating data will be obtained to confirm the process economics and provide a basis to guarantee performance on a commercial scale. The project is presently in the project definition and preliminary design phase. Data obtained during pilot plant testing which was completed on July 30, 1993 is being incorporated in the design of the commercial size plant. A suitable host site to demonstrate the NOXSO process on a commercial scale is presently being sought. Preliminary engineering studies provided information to decide on the basic plant arrangement. A scaled up POC design was selected as the general arrangement of choice based on a cost versus technical risk assessment. The first step in developing an adsorber computer simulation was completed. Several processes for producing liquid SO2 from the regenerator offgas were developed and evaluated. It was concluded that the Claus and burn process which involves making elemental sulfur as an intermediate product was the best choice. The NOXSO process computer simulation was updated to include semi-plug solids flow through the fluidized beds of the sorbent heater and cooler. Heat loss calculations were also added.
Book Synopsis Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 5, March 1--May 31, 1992 by :
Download or read book Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 5, March 1--May 31, 1992 written by and published by . This book was released on 1992 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NOXSO Process is a dry, post-combustion flue gas treatment technology which uses a regenerable sorbent to simultaneously adsorb sulfur dioxide and nitrogen oxides from the flue gas of a coal-fired utility boiler. In the process, the SO2 is reduced to elemental sulfur and the NOx is reduced to nitrogen and oxygen. It is predicted that the process can economically remove 90% of the acid rain precursor gases from the flue gas stream in a retrofit or new facility. This project is presently in the project definition and preliminary design phase. This phase was included in the project to allow completion of process studies and preliminary activities which could be conducted in parallel with NOXSOs̀ pilot plant project being conducted at Ohio Edisons̀ Toronto Power Plant.
Book Synopsis Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 12, December 1, 1993--February 28, 1994 by :
Download or read book Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 12, December 1, 1993--February 28, 1994 written by and published by . This book was released on 1994 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NOXSO process is a dry, post-combustion flue gas treatment technology which uses a regenerable sorbent to simultaneously adsorb sulfur dioxide (SO2) and nitrogen oxides (NO3 from the flue gas of a coal-fired utility boiler. In the process, the SO2 is reduced to sulfur by-product and the NO3 is reduced to nitrogen and oxygen. It is predicted that the process can economically remove 90% of the acid rain precursor gases from the flue gas stream in a retrofit or new facility. The objective of the NOXSO Demonstration Project is to design, construct, and operate a flue gas treatment system utilizing the NOXSO process. The effectiveness of the process will be demonstrated by achieving significant reductions in emissions of sulfur and nitrogen oxides. In addition, sufficient operating data will be obtained to confirm the process economics and provide a basis to guarantee performance on a commercial scale. The project is presently in the project definition and preliminary design phase. Data obtained during pilot plant testing which was completed on July 30, 1993 is being incorporated in the design of the commercial size plant. A suitable host site to demonstrate the NOXSO process on a commercial scale is presently being sought. The plant general arrangement has been revised to incorporate principles used in the design of fluidized catalytic cracking (FCC) plants. A NOXSO plant availability analysis was prepared using operating experience from the recently completed pilot plant as a basis. The impact of water desorption in the sorbent heater and water adsorption in the sorbent cooler has been quantified and incorporated into the NOXSO process simulator. NOXSO process economics has been updated based on the present design. Capital cost for a 500 MW plant designed to remove 98% of the SO2 and 85% of the NO3 is estimated at $247/kW.
Book Synopsis Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 4, December 1, 1991--February 29, 1992 by :
Download or read book Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 4, December 1, 1991--February 29, 1992 written by and published by . This book was released on 1992 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NOXSO Process is a dry, post-combustion flue gas treatment technology which uses a regenerable sorbent to simultaneously adsorb sulfur dioxide (SO2) and nitrogen oxides (NOx) from the flue gas of a coal-fired utility boiler. In the process, the SO2 is reduced to elemental sulfur and the NOx is reduced to nitrogen and oxygen. It is predicted that the process can economically remove 90% of the acid rain precursor gases from the flue gas stream in a retrofit or new facility. The objective of the NOXSO Demonstration Project is to design, construct, and operate a flue gas treatment system utilizing the NOXSO Process at Ohio Edisons̀ Niles Plant Unit {number_sign}1. The effectiveness of the process will be demonstrated by achieving significant reductions in emissions of sulfur and nitrogen oxides. In addition, sufficient operating data will be obtained to confirm the process economics and provide a basis to guarantee performance on a commercial scale. Ohio Edisons̀ Niles Plant Unit {number_sign}1 generates 115 MW of electricity and 275,000 scfm of flue gas while burning 3.5% sulfur coal. The project is presently in the project definition and preliminary design phase. This phase was included in the project to allow completion of process studies and preliminary activities which could be conducted in parallel with NOXSOs̀ pilot plant project being conducted at Ohio Edisons̀ Toronto Power Plant.
Book Synopsis Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 13, March 1, 1994--May 31, 1994 by :
Download or read book Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 13, March 1, 1994--May 31, 1994 written by and published by . This book was released on 1994 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NOXSO process is a dry, post-combustion flue gas treatment technology which uses a regenerable sorbent to simultaneously adsorb sulfur dioxide (SO2) and nitrogen oxides (NO3 from the flue gas of a coal-fired utility boiler. In the process, the SO2 is converted to a sulfur by-product and the NO3 is converted to nitrogen and oxygen. It is predicted that the process can economically remove 90% of the acid rain precursor gases from the flue gas stream in a retrofit or new facility. The objective of the NOXSO Demonstration Project is to design, construct, and operate a flue gas treatment system utilizing the NOXSO process. The effectiveness of the process will be demonstrated by achieving significant reductions in emissions of sulfur and nitrogen oxides. In addition, sufficient operating data will be obtained to confirm the process economics and provide a basis to guarantee performance on a commercial scale. The project is presently in the project definition and preliminary design phase. Data obtained during pilot plant testing which was completed on July 30, 1993 is being incorporated in the design of the commercial size plant. A suitable host site to demonstrate the NOXSO process on a commercial scale is presently being sought. Preliminary engineering activities involved evaluating various design options for the major process vessels with the principal focus being on the sorbent heater vessel, which is operated at the highest temperature. Additionally, the impact of the NOXSO system on power plant particulate emissions and opacity was estimated. It is predicted that particulate emissions will decrease slightly while opacity will increase slightly. Neither change will be significant enough to have an impact on emissions compliance. Advertised performance of the proposed adsorber separator is being verified by laboratory testing. Process studies activities included POC equipment inspection and materials evaluations.
Book Synopsis Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 10, June 1--August 31, 1993 by :
Download or read book Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 10, June 1--August 31, 1993 written by and published by . This book was released on 1993 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NOXSO process is a dry, post-combustion flue gas treatment technology which uses a regenerable sorbent to simultaneously adsorb sulfur dioxide (SO2) and nitrogen oxides (NOx) from the flue gas of a coal-fired utility boiler. In the process, the SO2 is reduced to sulfur by-product (elemental sulfur, sulfuric acid, or liquid SO2) and the NOx is reduced to nitrogen and oxygen. It is predicted that the process can economically remove 90% of the acid rain precursor gases from the flue gas stream in a retrofit or new facility. The objective of the NOXSO Demonstration Project is to design, construct, and operate a flue gas treatment system utilizing the NOXSO process at Ohio Edisons̀ Niles Plant Unit {number_sign}1. The effectiveness of the process will be demonstrated by achieving significant reductions in emissions of sulfur and nitrogen oxides. In addition, sufficient operating data will be obtained to confirm the process economics and provide a basis to guarantee performance on a commercial scale. The project is presently in the project definition and preliminary design phase. Data obtained during pilot plant testing which was completed on July 30, 1993 is being incorporated in the design of the commercial size plant. A suitable host site to demonstrate the NOXSO process on a commercial scale is presently being sought.
Book Synopsis Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 9, March 1--May 31, 1993 by :
Download or read book Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 9, March 1--May 31, 1993 written by and published by . This book was released on 1993 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NOXSO process is a dry, post-combustion flue gas treatment technology which uses a regenerable sorbent to simultaneously adsorb sulfur dioxide (SO2) and nitrogen oxides (NOx) from the flue gas of a coal-fired utility boiler. In the process, the SO2 is reduced to elemental sulfur and the NOx is reduced to nitrogen and oxygen. It is predicted that the process can economically remove 90% of the acid rain precursor gases from the flue gas stream in a retrofit or new facility. The objective of the NOXSO Demonstration Project is to design, construct, and operate a flue gas treatment system utilizing the NOXSO process at Ohio Edisons̀ Niles Plant Unit {number_sign}1. The effectiveness of the process will be demonstrated by achieving significant reductions in emissions of sulfur and nitrogen oxides. In addition, sufficient operating data will be obtained to confirm the process economics and provide a basis to guarantee performance on a commercial scale. Ohio Edisons̀ Niles Plant Unit {number_sign}1 generates 115 MW of electricity and 275,000 scfm of flue gas while burning 3.5% sulfur coal. The project is presently in the project definition and preliminary design phase. This phase was included in the project to allow completion of process studies and preliminary activities which could be conducted in parallel with NOXSOs̀ pilot plant project being conducted at Ohio Edisons̀ Toronto Power Plant.
Book Synopsis Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System by :
Download or read book Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System written by and published by . This book was released on 1995 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: This environmental assessment (EA) was prepared to evaluate the potential impacts of a proposed demonstration project to be cost-shared by DOE and NOXSO Corporation under the terms of Clean Coal Technology (CCT) Demonstration Program. The project would demonstrate the NOXSO flue gas treatment technology, which is designed to reduce sulfur dioxide (SO2) and nitrogen oxides (NO3 emissions from existing coal-fired electric generating units. Its objective is to introduce advanced, efficient, reliable, and environmentally improved coal utilization technologies to the U.S. energy marketplace, in order to reduce or eliminate economic and environmental barriers to the continued use of coal as an energy source. This EA represents the third level of DOEs̀ NEPA strategy: the preparation and public distribution of NEPA documents for each project selected for financial assistance under the PON. It contains a site-specific environmental impact analysis of the proposed federal action, and will result in either a Finding of No Significant Impact, or a determination that significant impacts may occur, in which case an Environmental Impact Statement must be prepared. The sources of information for this EA include the technical proposal for the project submitted by NOXSO in response to the CCT Round III PON; discussions with NOXSO and their consultants; discussions with federal, state and local agencies; the April 1995 NOXSO Environmental Information Volume provided to DOE for the project; and visits to the proposed project sites.
Book Synopsis Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Environmental Information Volume by :
Download or read book Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Environmental Information Volume written by and published by . This book was released on 1998 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Clean Coal Technology (CCT) Demonstration Program is a $5 billion technology demonstration program that was legislated by Congress to be funded jointly by the federal government and industrial or other sector participants. The goal of the Program is to make available to the U.S. energy marketplace a number of advanced, more efficient, reliable, and environmentally responsive coal utilization and environmental control technologies. These technologies are intended to reduce or eliminate the economic and environmental impediments that limit the full consideration of coal as a future energy resource. Over the next decade, the Program will advance the technical, environmental and economic performance of these advanced technologies to the point where the private sector will be able to introduce them into the commercial marketplace. Each of these demonstrations is in a scale large enough to generate sufficient design, construction and operation data for the private sector to judge the technologys̀ commercial potential and to make informed confident decisions on its commercial readiness. The strategy being implemented to achieve the goal of the CCT Demonstration Program is to conduct a multi-phase effort consisting of at least five separate solicitations for projects, each with individual objectives that, when integrated, will make technology options available on a schedule consistent with the demands of the energy market and responsive to the relevant environmental considerations. This paper describes a commercial demonstration project to be fielded in support of this program.
Book Synopsis Commercial Demonstration of the NOXSO SO[sub 2]/NO[sub X] Removal Flue Gas Cleanup System. Quarterly Technical Progress Report, No. 14, June 1, 1994--August 31, 1994 by :
Download or read book Commercial Demonstration of the NOXSO SO[sub 2]/NO[sub X] Removal Flue Gas Cleanup System. Quarterly Technical Progress Report, No. 14, June 1, 1994--August 31, 1994 written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the NOXSO Demonstration Project (NDP), with cost-shared funding support from DOE, is to design, construct, and operate a commercial-scale flue gas cleanup system utilizing the NOXSO process. The NDP consists of the NOXSO plant and sulfur recovery unit, designed to remove SO[sub 2] and NO[sub x] from flue gas and produce elemental sulfur by-product, and the liquid SO[sub 2] plant and air separation unit, designed to process the elemental sulfur into liquid SO[sub 2]. The NOXSO plant and sulfur recovery unit will be constructed at ALCOA Generating Corporation's (AGC) Warrick Power Plant near Evansville, Indiana, and will treat all of the flue gas from the 150-MW Unit 2 boiler. The elemental sulfur produced will be shipped to the Olin Charleston Plant in Charleston, Tennessee, for conversion into liquid SO[sub 2].
Book Synopsis Commercial Demonstration of the NOXSO SO2 by :
Download or read book Commercial Demonstration of the NOXSO SO2 written by and published by . This book was released on 1997 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the NOXSO Demonstration Project (NDP), with cost-shared funding support from DOE, is to design, construct, and operate a commercial-scale flue gas cleanup system utilizing the NOXSO process. The NDP consists of the NOXSO plant and sulfur recovery unit, designed to remove SO2 and NO(subscript x) from flue gas and produce elemental sulfur by-product, and the liquid SO2 plant and air separation unit, designed to process the elemental sulfur into liquid SO2. The NOXSO plant and sulfur recovery unit will be constructed at ALCOA Generating Corporation's (AGC) Warrick Power Plant near Evansville, Indiana, and will treat all of the flue gas from the 150-MW Unit 2 boiler. The elemental sulfur produced will be shipped to the Olin Charleston Plant in Charleston, Tennessee, for conversion into liquid SO2.
Book Synopsis An Experimental Study of NO(subscript X) Recycle in the NOXSO Flue Gas Cleanup Process. Quarterly Technical Progress Report, January 1--March 31, 1992 by :
Download or read book An Experimental Study of NO(subscript X) Recycle in the NOXSO Flue Gas Cleanup Process. Quarterly Technical Progress Report, January 1--March 31, 1992 written by and published by . This book was released on 1992 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: NO(subscript x) recycle is one part of the NOXSO process. In this process, 90% of the acid pollutants (NO(subscript x) and SO2) can be removed simultaneously by adsorption on the surface of a PO sorbent material. The sorbent is subsequently regenerated by heating and contacting the hot sorbent with a reducing gas followed by steam. The NO(subscript x) is removed in the heating process, and the SO2 is removed by the chemical reaction of the reducing gas and steam. The NO (subscript x) stream produced is returned to the combustion process with combustion air, which is called the NO(subscript x) recycle. The NO(subscript x) is reduced in the flame to N2, H20, and CO2. NO(subscript x) recycle will be implemented at the full-scale commercial demonstration plant at Niles. The concept of NO(subscript x) recycle has been tested previously at DOE-Pittsburgh Energy Technology Center (PETC) using a 500 lb/hr coal combustor used for the 3/4 MW tests and also using a tunnel furnace capable of being fired with a variety of fuels including gas, fuel oil, coal, and coal-water mixtures. The results were very promising and demonstrated the destruction of NO(subscript x) compounds when fed to the combustion system. The data also indicate that the extent of NO(subscript x) reduction is determined by the location of the NO(subscript x) injection and the combustor design. This current project is pilot-scale testing of NO(subscript x) destruction mechanisms and to help with the implementation at the Niles station.
Book Synopsis Proof of Concept Testing of the Advanced NOXSO Flue Gas Cleanup Process. Quarterly Technical Progress Report, April 1989--July 1989 by :
Download or read book Proof of Concept Testing of the Advanced NOXSO Flue Gas Cleanup Process. Quarterly Technical Progress Report, April 1989--July 1989 written by and published by . This book was released on 1995 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project is being performed by MK-Ferguson Company for the U.S. Department of Energy Pittsburgh Energy Technology Center. The project is a pilot plant scale up from laboratory testing of the NOXSO flue gas cleanup process. The process simultaneously removes both sulfur and nitrogen oxides from the flue gas. The objective of this project is to prove the NOXSO Process can achieve the same SO2 and NO(subscript x) removal efficiencies under field conditions as achieved in laboratory tests. The project is a scale-up of previous laboratory tests. The project will be built at Ohio Edison's Toronto Station a coal fired power plant located in Toronto Ohio. The pilot plant will process a 12000 SCFM slip stream of flue gas from the power plant. The project is divided into 6 tasks. The purpose of Task 1 is to establish a work plan that covers in detail all the activities related to the successful completion of the project. Task 2 consists of the design and construction of the pilot Plant. Task 3 consists of an experimental program to define both operating conditions and performance data to support Task 4. Task 4 primary activities to conduct a long duration test which attains continuous 90% sulfur dioxide and nitrogen oxide removal rates. Task 5 will be the conceptual design of a 500MW including an economic evaluation of the conceptual design. Task 6 will be the demolition of the pilot plant and restoration of the site.
Book Synopsis An Experimental Study of NO(subscript X) Recycle in the NOXSO Flue Gas Cleanup Process. Quarterly Technical Progress Report, April 1--June 31, 1992 by :
Download or read book An Experimental Study of NO(subscript X) Recycle in the NOXSO Flue Gas Cleanup Process. Quarterly Technical Progress Report, April 1--June 31, 1992 written by and published by . This book was released on 1992 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: NO(subscript x) recycle is one part of the NOXSO process. In this process, 90% of the acid pollutants (NO(subscript x) and SO2) can be removed simultaneously by adsorption on the surface of a sorbent material. The sorbent is subsequently regenerated by heating and contacting the hot sorbent with a reducing gas followed by steam. The NO(subscript x) is removed in the heating process, and the SO2 is removed by the chemical reaction of the reducing gas and steam. The NO(subscript x) stream produced is returned to the combustion process with combustion air, which is called the NO(subscript x) recycle. The NO(subscript x) is reduced in the flame to N2, H2O, and CO2. The tests of NO injection with combustion have demonstrated very promising results. The test data showed quite consistent NO(subscript x) reduction efficiencies, which is similar to the previous test results on the pulverized coal combustor at DOE-PETC. An average of about 70 % NO. destruction efficiency was achieved for the NO injection into the primary air duct independent of injected NO flow rates and exit 02 concentrations. About 58%, 50%, and 46% average destruction efficiencies were obtained for the NO injection into the secondary air duct corresponding to the exit O2concentrations of 2%, 3%, and 4% respectively.
Book Synopsis An Experimental Study of NO(subscript X) Recycle in the NOXSO Flue Gas Cleanup Process. Quarterly Technical Progress Report, July 1--September 31, 1992 by :
Download or read book An Experimental Study of NO(subscript X) Recycle in the NOXSO Flue Gas Cleanup Process. Quarterly Technical Progress Report, July 1--September 31, 1992 written by and published by . This book was released on 1992 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: NO{sup x} recycle represents one part of the NOXSO process. This process can remove 90% of NO(subscript x) and SO2 simultaneously from flue gas by using a fluidized bed of sorbent. Spent sorbent is regenerated by treatment at high temperatures with a reducing gas. Adsorbed NO{sub X} is evolved on heating the sorbent to a regeneration temperature. The concentrated stream of NO(subscript x) produced is returned to the boiler with the combustion air and reduced in the flame, which is called NO(subscript x) recycle. In the previous reporting period (from April to June), NO injection series of tests have been completed. Part of NO simultaneous injection and NO2 injection tests were conducted. All the test results showed consistent trends. About 70% average NO(subscript x) reduction efficiency has been achieved when NO is injected into the primary air duct, which was not affected by the NO injection flow rate, the furnace load and exit O2 concentration. When NO is injected into the secondary air duct, the NO(subscript x) reduction efficiency ranges from 46% to 60 % with dependence on the exit O2 concentration. The NO simultaneous injection tests showed that the NO(subscript x) reduction efficiency increases with the percentage of total NO injected into the primary air duct. About 67% average NO(subscript x) reduction efficiency was demonstrated with injection of NO2 into the secondary air duct, which is higher than that with injection of NO at the same test conditions.
Book Synopsis Integrated Dry NO3 SO2 Emissions Control System. Quarterly Report No. 3, July 1--September 30, 1991 by :
Download or read book Integrated Dry NO3 SO2 Emissions Control System. Quarterly Report No. 3, July 1--September 30, 1991 written by and published by . This book was released on 1991 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: This projects̀ goal is to demonstrate the removal up to 70% of the NOx and 70% of the SO2 emissions from coal fired utility boilers. It will establish an alternative emissions control technology integrating a combination of several processes, while minimizing capital expenditures and limiting waste production to dry solids that are handled with conventional ash removal equipment. These processes include low-NOx burners, NOx ports and urea injection for NOx control, sodium or calcium based sorbent injection for SO2 control, and flue gas humidification to enhance the reactivity of the SO2 control compound.
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