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An Investigation Of The Activity Of Zonal Catalyst Beds For Hydrodesulfurization And Hydrodenitrogenation Of A Coal Derived Liquid
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Book Synopsis An Investigation of the Activity of Zonal Catalyst Beds for Hydrodesulfurization and Hydrodenitrogenation of a Coal-derived Liquid by : Opinder Kishan Bhan
Download or read book An Investigation of the Activity of Zonal Catalyst Beds for Hydrodesulfurization and Hydrodenitrogenation of a Coal-derived Liquid written by Opinder Kishan Bhan and published by . This book was released on 1981 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Investigation of the Activity of Composite Catalyst Beds for Hydrotreatment of a Coal-derived Liquid by : Opinder Kishan Bhan
Download or read book An Investigation of the Activity of Composite Catalyst Beds for Hydrotreatment of a Coal-derived Liquid written by Opinder Kishan Bhan and published by . This book was released on 1983 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Kinetics and Mechanism of Desulfurization and Denitrogenation of Coal-derived Liquids. Third Quarterly Report, December 20, 1975--March 20, 1976. [13 Refs. ; Dibenzothiophene; Ni-Mo/Al2O3; Ni-W/Al2O3; Ni-W/Al2O3-SiO2; Co-Mo/Al2O3]. by :
Download or read book Kinetics and Mechanism of Desulfurization and Denitrogenation of Coal-derived Liquids. Third Quarterly Report, December 20, 1975--March 20, 1976. [13 Refs. ; Dibenzothiophene; Ni-Mo/Al2O3; Ni-W/Al2O3; Ni-W/Al2O3-SiO2; Co-Mo/Al2O3]. written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The high-pressure liquid-phase flow microreactor is a unique reactor for obtaining quantitative kinetic data for catalytic hydrodesulfurization and hydrodenitrogenation. The hydrodesulfurization of dibenzothiophene involves formation of biphenyl as a primary reaction product without hydrogenation of the aromatic rings. The catalytic hydrodenitrogenation of quinoline involves rapid hydrogenation of the nitrogen-containing ring followed by cracking of the ring to produce an aniline which is slowly hydrodenitrogenated. The hydrodenitrogenation reactions follow first-order kinetics. The order of activity of five commercial hydrotreating catalysts for quinoline hydrodenitrogenation is (Ni--Mo/Al2O3)> (Ni--W/Al2O3)> (Ni--W/Al2O3--SiO2)> (Co--Mo/Al2O3).
Book Synopsis Development of Unique Catalysts for Hydrodenitrogenation of Coal-derived Liquids. Annual Report, September 15, 1979-September 15, 1980 by :
Download or read book Development of Unique Catalysts for Hydrodenitrogenation of Coal-derived Liquids. Annual Report, September 15, 1979-September 15, 1980 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrodenitrogenation of quinoline and decahydroquinoline has been studied employing several catalysts: Bronsted and Lewis acid catalysts without metal, and silica-alumina, .gamma.-alumina and magnesia impregnated with molybdenum, tungsten, nickel or cobalt. Our results show that nitrogen removal rate was highest for molybdenum on alumina and tungsten on silica-alumina or alumina catalysts. Nitrogen abstraction using .gamma.-alumina support is considerably faster than with magnesia support. Several catalysts have been prepared and tested, with the emphasis on understanding the role of acidity in the carbon-nitrogen bond scission reaction. Hydrodenitrogenation of quinoline has been studied by using Ni, Mo/chlorided or fluorided alumina catalysts, with various halide concentrations. Preliminary results from this study indicate that halogenation of .gamma.-alumina catalysts slightly enhanced the hydrogenolysis activity but showed little effect on the hydrogenation activity. Initial results from phenothiazine hydroprocessing show that carbon-sulfur bonds in the reactant are broken much faster than the carbon-nitrogen bonds. Data relevant to this reaction are being evaluated, utilizing kinetic analysis to give quantitative rates of C-N and C-S bond scission and the extents and rates of hydrogenation. Note: this report contains 5th, 6th, 7th and 8th quarterly reports.
Book Synopsis A Survey of Catalysts for the Hydrodenitrogenation of Coal-derived Liquids by : Carol Jean Payne
Download or read book A Survey of Catalysts for the Hydrodenitrogenation of Coal-derived Liquids written by Carol Jean Payne and published by . This book was released on 1977 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Unique Catalysts for Hydrodenitrogenation of Coal-derived Liquids by : James Robert Katzer
Download or read book Development of Unique Catalysts for Hydrodenitrogenation of Coal-derived Liquids written by James Robert Katzer and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Catalytic Hydrotreating of Coal Derived Liquids by :
Download or read book Catalytic Hydrotreating of Coal Derived Liquids written by and published by . This book was released on 1966 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrodenitrogenation of a Coal Derived Liquid by : Donald P. Satchell
Download or read book Hydrodenitrogenation of a Coal Derived Liquid written by Donald P. Satchell and published by . This book was released on 1974 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrodesulfurization and Hydrodenitrogenation Catalysts Obtained from Coal Mineral Matter by :
Download or read book Hydrodesulfurization and Hydrodenitrogenation Catalysts Obtained from Coal Mineral Matter written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A hydrotreating catalyst is prepared from coal mineral matter obtained by low temperature ashing coals of relatively low bassanite content by the steps of: (a) depositing on the low temperature ash 0.25-3 grams of an iron or nickel salt in water per gram of ash and drying a resulting slurry; (b) crushing and sizing a resulting solid; and (c) heating the thus-sized solid powder in hydrogen.
Book Synopsis Catalyst Aging Tests and the Role of Catalyst Wetting on Hydrodesulfurization of a Coal Derived Liquid by : Dhirendra Chhotalal Mehta
Download or read book Catalyst Aging Tests and the Role of Catalyst Wetting on Hydrodesulfurization of a Coal Derived Liquid written by Dhirendra Chhotalal Mehta and published by . This book was released on 1980 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Kinetics and Mechanism of Desulfurization and Denitrogenation of Coal-derived Liquids. Seventh Quarterly Report, December 21, 1976--March 20, 1977. [CoO--MoO3 and NiO--MoO3]. by :
Download or read book Kinetics and Mechanism of Desulfurization and Denitrogenation of Coal-derived Liquids. Seventh Quarterly Report, December 21, 1976--March 20, 1977. [CoO--MoO3 and NiO--MoO3]. written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Three high-pressure flow microreactors and two batch autoclave reactors have been used to study the reaction networks and kinetics of (1) catalytic hydrodesulfurization of dibenzothiophene and methyl-substituted dibenzothiophenes and (2) catalytic hydrodenitrogenation of acridine. The catalysts were commercial, sulfided CoO-MoO3/.gamma.-Al2O3 and commercial, sulfided NiO-MoO3/.gamma.-Al2O3. At 300°C and 104 atm, dibenzothiophene reacts to give H2S and biphenyl in high yield. Methyl-substituted dibenzothiophenes react similarly, and each reaction is first-order in the sulfur-containing compound. Two methyl groups near the sulfur atom (in the 4 and 6 positions) reduce the reactivity tenfold, whereas methyl groups in positions further removed from the sulfur atom increase reactivity about twofold. These results are consistent with steric and inductive effects. In acridine conversion, a large amount of hydrogenation precedes nitrogen removal. Breaking of the carbon-nitrogen bond is evidently part of the slowest reaction in the network. The Ni-Mo catalyst is about twice as active as the Co-Mo catalyst for ring hydrogenation, and the two catalysts are about equally active for breaking the carbon-nitrogen bond. Aged catalysts taken from the H-Coal process had greatly reduced activity.
Book Synopsis Hydrodesulfurization and Hydrodenitrogenation Catalysts Obtained from Coal Mineral Matter. [Patent Application]. by :
Download or read book Hydrodesulfurization and Hydrodenitrogenation Catalysts Obtained from Coal Mineral Matter. [Patent Application]. written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A hydrotreating catalyst is prepared from coal mineral matter obtained by low temperature ashing coals of relatively low bassanite content by the steps of: (a) depositing on the low temperature ash 0.25 to 3 grams of an iron or nickel salt in water per gram of ash and drying a resulting slurry; (b) crushing and sizing a resulting solid; and (c) heating the thus-sized solid powder in hydrogen.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Kinetics and Mechanism of Desulfurization and Denitrogenation of Coal-derived Liquids by : Bruce C. Gates
Download or read book Kinetics and Mechanism of Desulfurization and Denitrogenation of Coal-derived Liquids written by Bruce C. Gates and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The refining of coal-derived liquids and, especially, the removal of harmful sulfur and nitrogen is of great scientific and practical importance. The research planned under this contract has been completed: detailed results have been provided in the fourteen quarterly reports previously issued. Brief statements concerning the status of the following tasks are presented; microreactor development; catalytic hydrodesulfurization; hydrogenation, hydrodenitrogenation reactions; reaction engineering; and characterization of aged hydroprocessing catalysts.
Book Synopsis Kinetics and Mechanism of Desulfurization and Denitrogenation of Coal-derived Liquids. Tenth Quarterly Report, September 21-December 20, 1977 by :
Download or read book Kinetics and Mechanism of Desulfurization and Denitrogenation of Coal-derived Liquids. Tenth Quarterly Report, September 21-December 20, 1977 written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Three high-pressure flow microreactors and two batch autoclave reactors have been used to study the reaction networks and kinetics of: (1) catalytic hydrodesulfurization of dibenzothiophene and methyl-substituted dibenzothiophenes; and (2) catalytic hydrodenitrogenation of quinoline, methyl-substituted quinolines, acridine and carbazole. The catalysts were commercial, sulfided CoO-MoO3/.gamma.-Al2O3, NiO-MoO3/.gamma.-Al2O3, and NiO-WO3/.gamma.-Al2O3. At the typical conditions of 300°C and 104 atm, dibenzothiophene reacts to give H2S and biphenyl in high yield, but there is some hydrogenation preceding desulfurization. Methyl-substituted dibenzothiophenes react similarly, and each reaction is first-order in the sulfur-containing compound. Two methyl groups near the sulfur atom (in the 4 and 6 positions) reduce the reactivity tenfold, whereas methyl groups in positions further removed from the sulfur atom increase reactivity about twofold. The results are consistent with steric and inductive effects influencing adsorption. The data indicate competitive adsorption among the sulfur-containing compounds. In quinoline hydrodenitrogenation, both rings are saturated before the C-N bond is broken. Similarly, in acridine conversion a large amount of hydrogenation precedes nitrogen removal. Breaking of the carbon-nitrogen bond is evidently one of the slower reactions in the network. The Ni-Mo catalyst is about twice as active as the Co-Mo catalyst for ring hydrogenation, and the two catalysts are about equally active for breaking the carbon-nitrogen bond. Reactivity of carbazole is slightly lower than that of quinoline but higher than that of acridine.
Book Synopsis Effect of Catalyst Pore Size on Hydrodesulfurization of Coal Derived Liquids by : Matthew Colvin Sooter
Download or read book Effect of Catalyst Pore Size on Hydrodesulfurization of Coal Derived Liquids written by Matthew Colvin Sooter and published by . This book was released on 1983 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrodesulfurization and Hydrodenitrogenation by : Toshiaki Kabe
Download or read book Hydrodesulfurization and Hydrodenitrogenation written by Toshiaki Kabe and published by Wiley-VCH Verlag GmbH. This book was released on 1999 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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