Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Catalysts For Upgrading Coal Derived Liquids Quarterly Report October 1 December 31 1981 full books in PDF, epub, and Kindle. Read online Catalysts For Upgrading Coal Derived Liquids Quarterly Report October 1 December 31 1981 ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Download or read book Catalysts for Upgrading Coal-Derived Liquids. Quarterly Report, October 1-December 31, 1981 written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalysts for Upgrading Coal-derived Liquids. Quarterly Report, October 1-December 31, 1979 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The design and partial construction of a new trickle-flow, packed bed reactor system was achieved. This reactor will be used to conduct investigations of throwaway type catalysts and zoned or mixed catalyst beds. It will also be used to support studies of catalyst activity decay. Most of these decay studies will be conducted in the Catalyst Life Test Unit (CLTU). The CLTU has been improved by redesign of the H2 flow system and several minor changes. A new H2 supply system has been designed and items ordered for installation. One experimental run was conducted in one of the three reactors of the CLTU. Raw anthracene oil was the feedstock and a vendor catalyst was used (Nalco, NM-502, Ni-Mo-Al2O3). Run conditions were: 700F(371C), 1500 psig and 2.0 hour space time (volume hourly). The objective of this run was to test equipment, familiarize personnel and to obtain a data base for future experiments. The sulfur removal was better than 95% throughout the 162 hours of operation. However, nitrogen removal activity decayed from 70% to about 35% after only 30 to 50 hours.
Author :
Publisher :
ISBN 13 :
Total Pages : 886 pages
Book Rating : 4.:/5 (31 download)
Download or read book Fossil Energy Update written by and published by . This book was released on 1981 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 712 pages
Book Rating : 4.:/5 (3 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalysts for Upgrading Coal-derived Liquids. Quarterly Report, October 1-December 31, 1980 written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A linear relationship represents the hydrogenation activity decay of catalysts used in four experimental runs reported previously. The weight percent hydrogen in the reactor product oils plotted against oil-catalyst contact time for experimental runs ZBB, ZBC, ZBD, and ZBE reveals a linear decay rate of 0.0083 wt% hydrogen per hour. This is one quantitative measure of catalyst activity decay. The data for the plot incorporate three different catalysts or combinations used to process a PAMCO liquid at 1500 psig, 435C and LVHST of 2 hours. The data set covers run duration of up to 120 hours of oil-catalyst contact. An air driven hydrogen compressor was installed in the Catalyst Life Test Unit to reduce the costs associated with bottle hydrogen. Minor repairs were made on the oil feed pump. Five experimental runs were made with Shell 324 NiMo/Al catalyst using two feedstocks: (1) 40 wt% EDS/EDS raw solvent and (2) 30 wt% SRC-I creosote oil. The EDS feed oil proved to be rather easily hydrotreated as evidenced by 82 to 100% nitrogen removal, essentially complete desulfurization and no catalyst activity decay during 260 hours of continuous operation. Rapid coking resulted from the highly hydrogen deficient SRC/creosote mixture. The Shell 324 catalyst gave excellent hydrogenation of both liquids by increasing the hydrogen content of the product oils by about 3.8 wt%. This catalyst will be used in future studies; however, a new feedstock consisting of 30 wt% SRC-I/PAMCO process solvent will be assessed for use in catalyst decay mechanism studies.
Author :
Publisher :
ISBN 13 :
Total Pages : 900 pages
Book Rating : 4.3/5 (129 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Author :
Publisher :
ISBN 13 :
Total Pages : 1216 pages
Book Rating : 4.3/5 (129 download)
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Novel Catalysts for Upgrading Coal-derived Liquids. Quarterly Technical Progress Report, December 1, 1994-February 28, 1995 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 Catalysts for Upgrading Coal-derived Liquids. Quarterly Report, January 1-March 31, 1980 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Construction of the new trickle-bed reactor was completed and one experiment was conducted. The experimental run was made using a Pamco coal-derived liquid containing 0.40% sulfur and 0.95% nitrogen. The catalyst utilized was an American Cyanamide HDN-30, Ni-Mo-Al2O3. Run conditions were at 399C (750F), 1500 psig and space times up to two hours. Sample analyses are not yet available from this experiment. Two runs were completed in the Catalyst Life Test Unit (CLTU) utilizing a liquid containing 50% Synthoil and 50% Raw Anthracene oil. This fluid has a 0.54% sulfur and 1.21% nitrogen. Two Ni-MoAl2O3 catalysts were used - Shell-324, and H-Oil. Both experiments were terminated prematurely because of equipment malfunction. Sample analyses are not yet available from these two experiments.
Author :
Publisher :
ISBN 13 :
Total Pages : 1196 pages
Book Rating : 4.E/5 ( download)
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1985-11 with total page 1196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Billy L. Crynes
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (12 download)
Download or read book Catalysts for Upgrading Coal-derived Liquids written by Billy L. Crynes and published by . This book was released on 1977 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Novel Catalysts for Upgrading Coal-derived Liquids. Quarterly Technical Progress Report, 1 October 1993--31 December 1993 written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The principal objective of this research is to evaluate the hydrotreatment properties of [gamma]-Al[sub 2]O[sub 3] supported Mo oxynitride and oxycarbide catalysts. This information will be used to assess the potential of these materials for use as commercial catalysts for hydrotreating coal-derived liquids. During this quarter, the authors evaluated the catalytic properties of a series of supported molybdenum nitride catalysts. These catalysts were prepared in the laboratory for comparison with the supported molybdenum oxynitrides. Pyridine hydrodenitrogenation (HDN) was used as the test reaction.
Download or read book Catalysts for Upgrading Coal-derived Liquids. Quarterly Report, January 1-March 31, 1981 written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Run ZBF was conducted to determine the amount of sulfur and nitrogen removal from SRC-I/process solvent mixture in the absence of a hydrotreating catalyst. Negligible nitrogen and sulfur removal resulted from this experiment. The hydrogen content of the coal liquid increased slightly over that of the feedstock. In similar studies using other coal liquids some sulfur removal (10 to 40%) was noted under non-catalyzed conditions. Several commercial NiMo supported catalysts were analyzed for silica contents using atomic absorption. These results revealed that catalysts with large micropore size structures also contain high silica content (up to 22.5 weight percent). Several short duration runs (12 to 110 hours) were conducted in the CLTU to gather data on catalyst coking mechanisms. Using the SRC material mixed with a process solvent or creosote oil (30 weight percent SRC), solid materials were observed to form and precipitate in the latter portions of the reactor bed. The reactor system was modified to prevent the accumulation of these incompatible solids which would result in premature termination of the experimental runs. In the catalyst regeneration study (HDN-30, NiMo), a spent catalyst was regenerated and then used to hydrotreat a coal liquid consisting of 10% Synthoil II liquid mixed with raw anthracene oil. This regenerated catalyst gave equal and somewhat superior performance with respect to heteroatom removal compared to that of the fresh catalyst. A second regeneration of this same catalyst loading has been conducted and the regenerated catalyst is being prepared for a third cycle. The spent catalyst lost approximately 33% of its total surface area, yet regeneration recovered 97% of the fresh catalyst area.
Download or read book Noval Catalysts for Upgrading Coal-derived Liquids. Quarterly Technical Progress Report, March 1, 1995-May 31, 1995 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 Catalysts for Upgrading Coal-derived Liquids. Quarterly Report, April 1-June 30, 1980 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Five experimental runs were conducted in the newly constructed trickle-bed reactor. The experiments were designed to obtain data on zoned catalyst beds. This new reactor system demonstrated satisfactory performance in temperature, pressure and flow control. High desulfurization and denitrogenation were achieved on both catalysts tested at conditions of 815F, 1500 psig. These catalysts were a CoMo/Al and NiMo/Al. Zoned bed of 50-50 volume percent of the two catalysts tested revealed no advantages with respect to desulfurization, denitrogenation and activity decay. The level of nitrogen removal was initially high, but activity decay was significant over the operational interval of 100 hours. Two experimental runs were completed in the Catalyst Life Test Unit (CLTU) utilizing a liquid containing 50% Synthoil and 50% Raw Anthracene Oil. This fluid has a 0.54 weight percent sulfur and a 1.21 weight percent nitrogen. The catalyst used in this study was a Ni-Mo-Al2O3 (Shell 324). The objective of the experiments was to demonstrate the effect of diluting the catalyst bed with a small size inert particle to improve gas-liquid contact and reduce channeling. No difference could be distinguished between the use of particle sizes in the range of 0.25 to 1.00 mm diameter. One run was terminated prematurely because the small particles plugged the catalyst support screens. Precipitous catalyst activity decay was noted for both nitrogen and sulfur removal.
Author :
Publisher :
ISBN 13 :
Total Pages : 1260 pages
Book Rating : 4.:/5 (3 download)
Download or read book Government Reports Annual Index: Keyword A-L written by and published by . This book was released on 1987 with total page 1260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Billy L. Crynes
Publisher :
ISBN 13 :
Total Pages : 263 pages
Book Rating : 4.:/5 (25 download)
Download or read book Catalysts for Upgrading Coal-derived Liquids written by Billy L. Crynes and published by . This book was released on 1983 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt:
