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Development Of A Stable Cobalt Ruthenium Fischer Tropsch Catalyst Technical Progress Report No 11 April 1 1992 June 30 1992
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Book Synopsis Development of a Stable Cobalt-ruthenium Fischer-Tropsch Catalyst. Technical Progress Report No. 11, April 1, 1992--June 30, 1992 by :
Download or read book Development of a Stable Cobalt-ruthenium Fischer-Tropsch Catalyst. Technical Progress Report No. 11, April 1, 1992--June 30, 1992 written by and published by . This book was released on 1992 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four new catalysts were prepared and screened during this reporting period. They were compared to a reference Co-based catalyst (TC 211) which was developed under a previous DOE contract No. AC22-84PC10028. The reference catalyst was prepared on a special steamed and acid-washed Y zeolite support. The four new catalysts were prepared on a commercial product which is a specially-prepared Y zeolite. A special solvent was used to impregnate contract to a division of Union Carbide which is now part of UOP. Catalyst TC 211 was prepared by impregnating metals onto a laboratory steamed and acid-washed Y zeolite. A special impregnation solvent was used. At similar operating conditions, the four catalysts tested were less active and more selective to methane than the reference catalyst. A temperature change was made in the testing of these four catalysts (condition 1 to condition 2) to obtain conversions comparable to that obtained with the reference catalyst. Higher methane selectivity was noted for these catalysts when comparisons were made at similar conversion levels. When the new catalysts were evaluated at different conversions resulting from changes in feed rate at the same temperature (condition 2 to condition 3) high methane selectivity persisted. Thus these catalysts did not exhibit the expected lower methane selectivity at higher conversion. The four catalysts tested were intrinsically more selective to methane than the reference catalyst. They were, however, similar to the reference catalyst in their low selectivity to alcohols (Table 5). Of the four catalysts, catalyst 6531-161 which contained ruthenium appeared to be the most selective for methane.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a Stable Cobalt-ruthenium Fischer-Tropsch Catalyst. Technical Progress Report No. 9, October 1, 1991--December 31, 1991 by :
Download or read book Development of a Stable Cobalt-ruthenium Fischer-Tropsch Catalyst. Technical Progress Report No. 9, October 1, 1991--December 31, 1991 written by and published by . This book was released on 1992 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work performed in the program suggests that cobalt catalytic performance is a complex function of crystallite size, crystallite composition, and cobalt-support interaction. These properties are determined by the nature of support, the bimetallic component, the promoters, and the method of preparation. Results so far indicate that the lowest methane selectivity occurs on support No. 8, and the highest activity is obtained on support No. 10. Also, promoters 2 and 3 may help lower the formation of methane. These findings, along with the catalyst knowledge gained during Union Carbide's former contract AC22-84PC70028, will be used to develop a superior cobalt catalyst.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 7, April 1, 1992--June 30, 1992 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 7, April 1, 1992--June 30, 1992 written by and published by . This book was released on 1992 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this contract are to develop a technology for the production of active and stable iron Fischer-Tropsch catalysts for use in slurry-phase synthesis reactors and to develop a scaleup procedure for large-scale synthesis of such catalysts for process development and long-term testing in slurry bubble-column reactors. With a feed containing H2 and CO in the molar ratio of 0.5 to 1.0 to the slurry bubble-column reactor, the catalyst performance target is 88% CO + H2 conversion at a minimum space velocity of 2.4 NL/hr/gFe. The desired sum of methane and ethane selectivities is no more than 4%, and the conversion loss per week is not to exceed 1%. Contract Tasks are as follows: 1.0--Catalyst development, 1.1--Technology assessment, 1.2--Precipitated catalyst preparation method development, 1.3--Novel catalyst preparation methods investigation, 1.4--Catalyst pretreatment, 1.5--Catalyst characterization, 2.0--Catalyst testing, 3.0--Catalyst aging studies, and 4.0--Preliminary design and cost estimate of a catalyst synthesis facility. This paper reports progress made on catalyst development.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1994 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 8, July 1, 1992--September 30, 1992 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 8, July 1, 1992--September 30, 1992 written by and published by . This book was released on 1992 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this contract are to develop a technology for the production of active and stable iron Fischer-Tropsch catalysts for use in slurry-phase synthesis reactors and to develop a scaleup procedure for large-scale synthesis of such catalysts for process development and long-term testing in slurry bubble-column reactors. With a feed containing hydrogen and carbon monoxide in the molar ratio of 0.5 to 1.0 to the slurry bubble-column reactor, the catalyst performance target is 88% CO + H2 conversion at a minimum space velocity of 2.4 NL/hr/gFe. The desired sum of methane and ethane selectivities is no more than 4%, and the conversion loss per week is not to exceed 1%. Contract Tasks are as follows: 1.0--Catalyst development, 1.1--Technology assessment, 1.2--Precipitated catalyst preparation method development, 1.3--Novel catalyst preparation methods investigation, 1.4--Catalyst pretreatment, 1.5--Catalyst characterization, 2.0--Catalyst testing, 3.0--Catalyst aging studies, and 4.0--Preliminary design and cost estimate of a catalyst synthesis facility. This paper reports progress made on Task 1.
Book Synopsis Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 9, September 26, 1992--December 26, 1992 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 9, September 26, 1992--December 26, 1992 written by and published by . This book was released on 1992 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this contract are to develop a technology for the production of active and stable iron Fischer-Tropsch catalysts for use in slurry-phase synthesis reactors and to develop a scaleup procedure for large-scale synthesis of such catalysts for process development and long-term testing in slurry bubble-column reactors. With a feed containing hydrogen and carbon monoxide in the molar ratio of 0.5 to 1.0 to the slurry bubble-column reactor, the catalyst performance target is 88% CO + H2 conversion at a minimum space velocity of 2.4 NL/hr/gFe. The desired sum of methane and ethane selectivities is no more than 4%, and the conversion loss per week is not to exceed 1%. Contract Tasks are as follows: 1.0--Catalyst development, 1.1--Technology assessment, 1.2--Precipitated catalyst preparation method development, 1.3--Novel catalyst preparation methods investigation, 1.4--Catalyst pretreatment, 1.5--Catalyst characterization, 2.0--Catalyst testing, 3.0--Catalyst aging studies, and 4.0--Preliminary design and cost estimate of a catalyst synthesis facility. This paper reports progress on Task 1.3.
Book Synopsis Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 10, December 26, 1992--March 26, 1993 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 10, December 26, 1992--March 26, 1993 written by and published by . This book was released on 1993 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this contract are to develop a technology for the production of active and stable iron Fischer-Tropsch catalysts for use in slurry-phase synthesis reactors and to develop a scaleup procedure for large-scale synthesis of such catalysts for process development and long-term testing in slurry bubble-column reactors. With a feed containing hydrogen and carbon monoxide in the molar ratio of 0.5 to 1.0 to the slurry bubble-column reactor, the catalyst performance target is 88% CO + H2 conversion at a minimum space velocity of 2.4 NL/hr/gFe. The desired sum of methane and ethane selectivities is no more than 4%, and the conversion loss per week is not to exceed 1%. Contract tasks are as follows: 1.0: Catalyst development; 1.1--Technology assessment; 1.2--Precipitated catalyst preparation method development; 1.3--Novel catalyst preparation methods investigation; 1.4--Catalyst pretreatment; 1.5--Catalyst characterization; 2.0--Catalyst testing; 3.0--Catalyst aging studies, and 4.0--Preliminary design and cost estimate of a catalyst synthesis facility. This paper reports progress made on Task 1.2 and 2.0.
Book Synopsis Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 6, December 26, 1991--March 31, 1992 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 6, December 26, 1991--March 31, 1992 written by and published by . This book was released on 1992 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this contract are to develop a technology for the production of active and stable iron Fischer-Tropsch catalysts for use in slurry-phase synthesis reactors and to develop a scaleup procedure for large-scale synthesis of such catalysts for process development and long-term testing in slurry bubble-column reactors. With a feed containing H2 and CO in the molar ratio of 0.5 to 1.0 to the slurry bubble-column reactor, the catalyst performance target is 88% CO + H2 conversion at a minimum space velocity of 2.4 NL/hr/gFe. The desired sum of methane and ethane selectivities is no more than 4%, and the conversion loss per week is not to exceed 1%. Contract Tasks are as follows: 1.0--Catalyst development, 1.1--Technology assessment, 1.2--Precipitated catalyst preparation method development, 1.3--Novel catalyst preparation methods investigation, 1.4--Catalyst pretreatment, 1.5--Catalyst characterization, 2.0--Catalyst testing, 3.0--Catalyst aging studies, and 4.0--Preliminary design and cost estimate of a catalyst synthesis facility. This paper reports progress made on catalyst development.
Book Synopsis Technology Development for Iron Fischer-Tropsch Catalysts. Quarterly Technical Progress Report for Period Ending December 30, 1992 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysts. Quarterly Technical Progress Report for Period Ending December 30, 1992 written by and published by . This book was released on 1992 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The impact on iron Fischer-Tropsch catalysts of the variables controlling the initial precipitation, subsequent aging and drying conditions have been detailed. Heat treatment of iron oxyhydroxides results in decreasing the surface area and increasing the major pore size as temperature increases, both in air and in an inert atmosphere. A shift toward higher temperature stability is seen for the same iron oxyhydroxide when co-precipitated with 6% Al2O3, SiO2, or ZrO2. Samples for characterization have been withdrawn from the reactor at increasing time intervals during pretreatment and exposure to synthesis gas. Surface area decrease and pore size increase are also observed during reaction pretreatment with CO at 260°C and 100 psi. and during the initial days of reaction under CO/H2. The major changes appear to occur during pretreatment and in the very early stages of the reaction. The effects of added promoter(s) also impact the area and/or porosity of the materials. The area and pore size distributions have shown systematic changes during increasing exposure to synthesis gas.
Book Synopsis Technology Development for Iron Fischer-Tropsch Catalysis. Quarterly Technical Progress Report No. 3, April 1, 1995--June 30, 1995 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysis. Quarterly Technical Progress Report No. 3, April 1, 1995--June 30, 1995 written by and published by . This book was released on 1995 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research project is to develop the technology for the production of physically robust iron-based Fischer-Tropsch catalysts that have suitable activity, selectivity and stability to be used in the slurry phase synthesis reactor development. The catalysts that are developed shall be suitable for testing in the Advanced Fuels Development Facility at LaPorte, Texas, to produce either low- or high-alpha product distributions. Previous work by the offeror has produced a catalyst formulation that is 1.5 times as active as the {open_quotes}standard-catalyst{close_quotes} developed by German workers for slurry phase synthesis. The proposed work will optimize the catalyst composition and pretreatment operation for this low-alpha catalyst. In parallel, work will be conducted to design a high-alpha iron catalyst this is suitable for slurry phase synthesis. Studies will be conducted to define the chemical phases present at various stages of the pretreatment and synthesis stages and to define the course of these changes. The oxidation/reduction cycles that are anticipated to occur in large, commercial reactors will be studied at the laboratory scale. Catalyst performance will be determined for catalysts synthesized in this program for activity, selectivity and aging characteristics. The research is divided into four major topical areas: (a) catalyst preparation and characterization, (b) product characterization, (c) reactor operations, and (d) data assessment.
Book Synopsis Liederbuch für die Vereinigten 5 Hamburger Logen by :
Download or read book Liederbuch für die Vereinigten 5 Hamburger Logen written by and published by . This book was released on 1915 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Massachusetts Under the Constitution by :
Download or read book Massachusetts Under the Constitution written by and published by . This book was released on 1780 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technology Development for Cobalt F-T Catalysts. Quarterly Technical Progress Report No. 2, January 1, 1993--March 31, 1993 by :
Download or read book Technology Development for Cobalt F-T Catalysts. Quarterly Technical Progress Report No. 2, January 1, 1993--March 31, 1993 written by and published by . This book was released on 1993 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: During this reporting period procurements and installations were made for the purpose of refurbishing and refitting the two SBCR units that had been used in the recent past for Fischer-Tropsch development projects. The objective of Subtask 2.2 is to test in a slurry bubble column reactor catalysts that have shown satisfactory performance in a fixed-bed reactor. This is necessary because catalysts which perform satisfactorily in a fixed bed environment will not necessarily perform as well in a slurry environment. Catalyst density is particularly important. A catalyst with a high metals loading may show high activity in a fixed bed but perform poorly in a slurry reactor due to catalyst settling. Successful development of new or improved catalysts requires catalyst testing at various levels. Because complete testing (aging, complete characterization, etc.) of a catalyst is very expensive and time consuming, such complete testing will only be done for a select number of samples. Thus, it is imperative that preliminary testing be conducted in a rapid and efficient manner to reduce the number of catalyst formulations that proceed to further testing. Two virtually identical units, called M-3 and M-4, have been created from existing equipment/hardware with the addition of new procurements. Also, design modifications were made as a result of experience with operation of the units under related and similar conditions.
Book Synopsis Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 3, March 27, 1991--June 30, 1991 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 3, March 27, 1991--June 30, 1991 written by and published by . This book was released on 1991 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this contract are to develop a technology for the production of active and stable iron Fischer-Tropsch catalysts for use in slurry-phase synthesis reactors and to develop a scale up procedure for large-scale synthesis of such catalysts for process development and long-term testing in slurry bubble-column reactors. The catalyst performance target in the slurry bubble-column reactor is 88% CO + H2 conversion at a minimum space velocity of 2.4 NL/hr/gFe. Typical feed used to attain this level of conversion is preferred to have H2 and CO in the molar ratio of 0.5 to 1.0. The desired sum of methane and ethane selectivities is no more than 4%, and the conversion loss per week is not to exceed 1%.
Book Synopsis Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 12, June 26, 1993--September 26, 1993 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 12, June 26, 1993--September 26, 1993 written by and published by . This book was released on 1994 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this contract are to develop a technology for the production of active and stable iron Fischer-Tropsch catalysts for use in slurry-phase synthesis reactors and to develop a scale-up procedure for large-scale synthesis of such catalysts for process development and long-term testing in slurry bubble-column reactors. With a feed containing hydrogen (H2) and carbon monoxide (CO) in the molar ratio of 0.5 to 1.0 to the slurry bubble column reactor, the catalyst performance target is 88% CO + H2 conversion at a minimum space velocity of 2.4 NL/hr/g Fe. The desired sum of methane and ethane selectivities is no more than 4%, and the conversion loss per week is not to exceed 1%.
