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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (88 download)
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units written by and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units. Final Report, Phase I. written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Advanced Concepts for Direct Coal Liquefaction program was initiated by the Department of Energy in 1991 to develop technologies that could significantly reduce the cost of producing liquid fuels by the direct liquefaction of coal. The advanced 2-stage liquefaction technology that was developed at Wilsonville over the past 10 years has contributed significantly toward decreasing the cost of producing liquids from coal to about$33/bbl. It remains, however, the objective of DOE to further reduce this cost to a level more competitive with petroleum based products. This project, among others, was initiated to investigate various alternative approaches to develop technologies that might ultimately lead to a 25% reduction in cost of product. In this project a number of novel concepts were investigated, either individually or in a coupled configuration that had the potential to contribute toward meeting the DOE goal. The concepts included mature technologies or ones closely related to them, such as coal cleaning by oil agglomeration, fluid coking and distillate hydrotreating and dewaxing. Other approaches that were either embryonic or less developed were chemical pretreatment of coal to remove oxygen, and dispersed catalyst development for application in the 2-stage liquefaction process. This report presents the results of this project. It is arranged in four sections which were prepared by participating organizations responsible for that phase of the project. A summary of the overall project and the principal results are given in this section. First, however, an overview of the process economics and the process concepts that were developed during the course of this program is presented.
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ISBN 13 :
Total Pages : 35 pages
Book Rating : 4.:/5 (684 download)
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units written by and published by . This book was released on 1996 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Advanced Direct Liquefaction Concepts Program sponsored by the DOE Pittsburgh Energy Technology Center was initiated in 1991 with the objective of promoting the development of new and emerging technology that has the potential for reducing the cost of producing liquid fuels by direct coal liquefaction. The laboratory research program (Phase I) was completed in 1995 by UK/CAER, CONSOL, Sandia National Laboratories and LDP Associates. A three year extension was subsequently awarded in October 1995 to further develop several promising concepts derived from the laboratory program. During Phase II, four continuous bench scale runs will be conducted at Hydrocarbon Technologies, Inc. using a 2 kg/hr continuous bench scale unit located at their facility in Lawrenceville, NJ. The first run in this program (ALC-1), conducted between April 19 and May 14, 1996, consisted of five test conditions to evaluate the affect of coal cleaning and recycle solvent modification. A detailed discussion of this run is included in Section Two of this report. Results obtained during this reporting period for all participants in this program are summarized.
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units: Quarterly Technical Progress Report, July Through September 1993 written by and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units. Quarterly Technical Progress Report, July-September 1994 written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units. Quarterly Technical Progress Report, April 1994-June 1994 written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Total Pages : 60 pages
Book Rating : 4.:/5 (684 download)
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units, Phase 2. Quarterly Technical Progress Report, January--March 1996 written by and published by . This book was released on 1996 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aims of this research program are to advance to bench-scale testing, concepts that have the potential for making net reductions in direct coal liquefaction process costs. The research involves a teaming arrangement between the University of Kentucky Center for Applied Energy Research (CAER), Consolidation Coal Company (CONSOL), Sandia National Laboratories (SNL), and LDP Associates. Progress reports are presented for: Task 2.1.1 development of a catalyst screening test (UK/CAER); Task 2.1.2 activation of impregnated catalysts (UK/CAER); Task 2.2 laboratory support (CONSOL); Task 3 continuous operations/parametric studies (Hydrocarbon Technologies, Inc.) and; Task 4.4 conceptual design, preliminary technical assessment (LDP Associates).
Download or read book ... Nacionalna naučno-techničeska Konferencija po metaloznanie i termoobrabotka written by and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 99 pages
Book Rating : 4.:/5 (684 download)
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units Phase II. Quarterly Technical Progress Report, April--June 1996 written by and published by . This book was released on 1996 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: A catalyst screening test (CST) was developed to evaluate the activity of various catalyst precursors for their liquefaction activity in a solvent comprising the solids-free components of a recycle solvent generated at Wilsonville, namely a ROSE SR V-130 deashed resid from period A and V-1074 heavy distillate from period B. Since the deashed resid has an elemental composition very nearly the same distillate from period B. Since the deashed resid has an elemental composition very nearly the same as in the solids-free fraction of the recycle solvent, the reactivity of these two resid and dry coal are nearly the same as in Run 263J, the overall composition should approximate the feed stream used in the Wilsonville pilot plant except for the absence of the solids component. Removing the solids from the reaction mixture should simplify the interpretation of the results since normally a considerable amount or recycled catalyst is contained in this fraction.
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units. Final Report, Phase I. written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 174 pages
Book Rating : 4.:/5 (685 download)
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units. Quarterly Technical Progress Report, April 1993--June 1993 written by and published by . This book was released on 1993 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Section 1 contains a report of the progress by the University of Kentucky Center for Applied Energy Research on the following tasks: laboratory support (liquefaction in dewaxed and hydrotreated dewaxed solvent); CO pretreatment (effect of process variables on CO pretreatment, CO-pretreated product characterization, and liquefaction results); and iron based dispersed catalysts (production, characterization and testing of sulfated hematites and reaction model development). Section 2 contains a progress report by CONSOL, Inc. on the following tasks: laboratory support; pretreatment work on dewaxing; pretreatment work on agglomeration; and economic evaluation. Progress by Sandia National Laboratories is reported in Section 3 on the following: laboratory support (TGA methods) and solvent pretreatment (coker tar hydrogenation and coal liquefaction results). Section 4 gives a preliminary technical assessment by LDP Associates on the following: baseline economic assessment; assessment of improved coal conversion; and fluid coking.
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ISBN 13 : 9788561564278
Total Pages : pages
Book Rating : 4.5/5 (642 download)
Download or read book The Note-maker Noted, and the Observer Observed Upon written by and published by . This book was released on 1743 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Total Pages : 85 pages
Book Rating : 4.:/5 (727 download)
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units. Quarterly Technical Progress Report, July 1992--September 1992 written by and published by . This book was released on 1992 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preparation of the baseline economic assessment, based on Wilsonville Run {number_sign}263J, continued. This baseline study will serve as the reference against which the results of this program will be compared. During the quarter calculation of the material and energy balances for the conceptual commercial plant were completed and estimation of the investment for the main process units was begun (Wyoming plant site basis). A presentation on the technical results of the baseline study was prepared and delivered at the Quarterly Project Review Meeting in Pittsburgh.
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Total Pages : 30 pages
Book Rating : 4.:/5 (683 download)
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units, Phase 2. Quarterly Technical Progress Report for Period October--December 1995 written by and published by . This book was released on 1996 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress reports are presented for: Task 1 management plan; Task 2.1 laboratory support (University of Kentucky/Center for Applied Energy Research); Task 3 continuous operations/parametric studies (Hydrocarbon Technologies, Inc.); Task 4.1 process modeling; and Task 4.4 preliminary technical assessment (LDP Associates). Some of the high points for this period are: the activity of the base catalyst prepared by pressure filtration of the Wilsonville Run 262E V-1082 ashy resid was determined and compared with the conversion of coal in the absence of any added catalyst; this material was found to contain 740 mg Mo/kg; in the catalyst screening test, the pressure filtered solids that had been added to the reaction mixture to a level equivalent to the solids contained in Wilsonville Run 263J gave coal conversion of 98.2% with a resid conversion of 24%; and the effect of presulfiding conditions on activating a Mo-impregnated coal with different H2S/H2 mixtures at different temperatures and reaction times was investigated.
Download or read book Intervention de la délégation française dans la discussion sur la déclaration de principes de l'A.I.T au congrès de TOULOUSE de l'A.I.T (mai 1951) written by and published by . This book was released on 1951 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 47 pages
Book Rating : 4.:/5 (727 download)
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units. Quarterly Technical Progress Report, January--March 1992 written by and published by . This book was released on 1992 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the Advance Coal Liquefaction Concept Proposal (ACLCP) carbon monoxide (CO) and water have been proposed as the primary reagents in the pretreatment process. The main objective of this project is to develop a methodology for pretreating coal under mild conditions based on a combination of existing processes which have shown great promise in liquefaction, extraction and pyrolysis studies. The aim of this pretreatment process is to partially depolymerise the coal, eliminate oxygen and diminish the propensity for retograde reactions during subsequent liquefaction. The desirable outcome of the CO pretreatment step should be: (1) enhanced liquefaction activity and/or selectivity toward products of higher quality due to chemical modification of the coal structure; (2) cleaner downstream products; (3) overall improvement in operability and process economics.
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ISBN 13 :
Total Pages : 78 pages
Book Rating : 4.:/5 (727 download)
Download or read book Advanced Direct Liquefaction Concepts for PETC Generic Units. Quarterly Technical Progress Report, April 1992--June 1992 written by and published by . This book was released on 1992 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: CAER/UK: Detail coal and starting solvents from Wilsonville were analyzed to develop the data necessary to conduct process studies in the CO Pretreatment and Catalyst Evaluation segment of this program. A comparison of the solvent separation analysis with the distillation/separation used at Wilsonville showed that the residual solvent components contained a large amount of residual pentane soluble products. The ashy resid contained 3% iron and 400 ppM molybdenum. Although the iron content in the distillate and deashed resid was much less, namely about 200 ppM., the molybdenum concentrations in these fractions were not significantly reduced over the concentration in the ashy resid, i.e., 200 ppM in each. The pretreatment of coal with CO/H2O in the presence of NaOH and Na2CO3 has been shown to give a product which is lower in oxygen content and higher in hydrogen content compared to the raw coal. The atomic H/C ratios of the H2O-insolubles, THF insolubles and the PA+A fractions of the products-together with the hydrogen consumption data suggested that the raw coal has been substantially depolymerized and hydrogenated via the WGS reaction during the pretreatment process. The extensive amount of molecular reconstruction that has occurred in the solid product was evident from the ease of solubilization of the product into pyridine. The result of the pretreatment process is a product which is highly reactive under hydroliquefaction conditions at 400°C. Reaction rates seem to be much faster than the raw coal, especially at shorter reaction times, providing the opportunity for major reductions in plant vessel sizes, and preliminary data has led us to believe that better efficiency in hydrogen utilization is achieved.
