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Technology Development For Iron Fischer Tropsch Catalysts Technical Progress Report No 3 March 27 1991 June 30 1991
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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%.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 4, June 26, 1991--September 26, 1991 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 4, June 26, 1991--September 26, 1991 written by and published by . This book was released on 1992 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The preparation of binderless iron oxide spheres has been achieved by a novel sol-gel forming procedure. The starting material is a solution of iron (III) 2-ethylhexanoate in mineral spirits. This solution is added dropwise to an ammoniacal solution of methanol. The low viscosity of the methanol causes the formation of small droplets of the iron solution. The immiscibility of the mineral spirit solution in the methanol and the difference in surface tensions cause the droplets to assume a spherical shape. The presence of ammonia and water at low levels in the methanol promotes the hydrolysis of the iron (III) 2-ethylhexanoate, which causes the spherical particles to harden. The iron-containing spheres can then be isolated by filtration. These spheres are the first ones reported to be made of 100% iron oxide and prepared without a binder. In the initial preparations, the spheres are 100 to 200?m in diameter. Some problems remain to be resolved with this new method of preparation.
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. Technical Progress Report No. 2, December 26, 1990--March 26, 1991 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 2, December 26, 1990--March 26, 1991 written by and published by . This book was released on 1991 with total page 27 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 catalyst 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, 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. 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. 5, September 26, 1991--December 26, 1991 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysts. Technical Progress Report No. 5, September 26, 1991--December 26, 1991 written by and published by . This book was released on 1992 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objective is to develop producing active, stable iron Fischer-Tropsch catalysts for use in slurry-phase synthesis reactors and to synthesize such catalysts on a large scale for process development and long-term testing in slurry bubble-column reactors. A mixed oxalate of Fe, Cu, and K was prepared; a catalyst will be prepared from this material. An evaluation run was performed on an Fe-based UCI catalyst, which was shown to produce low levels of C1 and C2 paraffins; e.g., at the end of the run, when the catalyst was converting 60% of the CO, the C1 and C2 paraffin selectivities were 4.2 and 1.0, respectively.
Book Synopsis Development of Improved Iron Fischer-Tropsch Catalysts. Quarterly Technical Progress Report, 1 April 1991--30 June 1991 by :
Download or read book Development of Improved Iron Fischer-Tropsch Catalysts. Quarterly Technical Progress Report, 1 April 1991--30 June 1991 written by and published by . This book was released on 1991 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of proposed research is development of catalysts with enhanced slurry phase activity and better selectivity to fuel range products, through a more detailed understanding and systematic studies of the effects of pretreatment procedures and promoters/binders (silica) on catalyst performance.
Book Synopsis Technology Development for Iron Fischer-Tropsch Catalysis. Quarterly Technical Progress Report for Period Ending March 31, 1991 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysis. Quarterly Technical Progress Report for Period Ending March 31, 1991 written by and published by . This book was released on 1991 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present study shows that activation of a high surface area Fe2O3 catalyst in CO in a (CSTR), continuously stirred tank reactor using tetralin as solvent results in an activated that is three times of material that is activated in H2 or directly in the syngas.
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 Development of Improved Iron Fischer-Tropsch Catalysts. Quarterly Technical Progress Report, 1 July 1991--30 September 1991 by :
Download or read book Development of Improved Iron Fischer-Tropsch Catalysts. Quarterly Technical Progress Report, 1 July 1991--30 September 1991 written by and published by . This book was released on 1991 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of proposed research is development of catalysts with enhanced slurry phase activity and better selectivity to fuel range products, through a more detailed understanding and systematic studies of the effects of pretreatment procedures and promoters/binders (silica) on catalyst performance.
Book Synopsis Technology Development for Iron Fischer-Tropsch Catalysts. Quarterly Technical Progress Report for Period Ending December 31, 1991 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysts. Quarterly Technical Progress Report for Period Ending December 31, 1991 written by and published by . This book was released on 1991 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report covers two aspects of the catalyst characterization studies: scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Two types of catalysts are the subject of this report: SEM studies with as-received, pretreated and used samples of a Ruhrchemie type catalyst and TEM examination of four crystal structures of FeOOH and Fe3O4.
Book Synopsis Development of Improved Iron Fischer-Tropsch Catalysts. Quarterly Technical Progress Report, 1 January 1991--31 March 1991 by :
Download or read book Development of Improved Iron Fischer-Tropsch Catalysts. Quarterly Technical Progress Report, 1 January 1991--31 March 1991 written by and published by . This book was released on 1991 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of proposed research is development of catalysts with enhanced slurry phase activity and better selectivity to fuel range products, through a more detailed understanding and systematic studies of the effects of pretreatment procedures and promoters/binders (silica) on catalyst performance.
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 Iron Fischer-Tropsch Catalysts: Technical Progress Report No. 11, March 26 - June 26, 1993 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysts: Technical Progress Report No. 11, March 26 - June 26, 1993 written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 Technology Development for Iron Fischer-Tropsch Catalysis. Quarterly Technical Progress Report No. 4, July 1, 1995--September 30, 1995 by :
Download or read book Technology Development for Iron Fischer-Tropsch Catalysis. Quarterly Technical Progress Report No. 4, July 1, 1995--September 30, 1995 written by and published by . This book was released on 1996 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The affect of copper promotion on the activity and selectivity of hydrogen pretreated, precipitated iron Fischer-Tropsch catalysts was studied. Fischer-Tropsch synthesis was carried out in the slurry phase in one in one liter continuous stirred tank reactors at a space velocity of 3.lNL h−1 g−1(Fe), H2:CO = 0.7 at either 270°C or 230°C. Catalysts with atomic compositions relative to iron of 10OFe/4.4Si/l. OK and 10OFe/4.4Si/2.6Cu/l. OK were used at 270°C and catalysts with the compositions of 100Fe/4.4Si/4.2K and 10OFe/4.4Si/2.6Cu/4.2K were used at 230°C. XRD and Moessbauer spectroscopy both show that the 10OFe/4.4Si/2.6Cu/l. OK catalyst contained approximately 24% [alpha]-Fe with the remainder Fe3O4 after a 24 h pretreatment with hydrogen at 220°C. Copper promotion was found to substantially increase the activity and productivity of the catalysts. Catalysts promoted with copper reached maximum activity within 100 h of synthesis while catalysts with no copper went through an induction period. The activity of the hydrogen pretreated 10OFe/4.4Si/2.6Cu/1.0K catalyst operated at 270°C was comparable to the activity of the the 100Fe/4.4Si/l. OK catalyst after pretreatment with carbon monoxide or syngas at one atmosphere pressure. However, the activity of the hydrogen pretreated 1O0Fe/4.4Si/2.6Cu/4.2K catalyst at 230°C was found to be substantially lower than the same catalyst pretreated with carbon monoxide or syngas at one atmosphere pressure.
