Download or read book Conversion of Light Hydrocarbon Gases to Metal Carbides for Production of Liquid Fuels and Chemicals Quarterly Technical Progress Report January 1 March 31 1995 written by and published by . This book was released on 1995 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The methane plasma stabilization problem was resolved with the reconfiguration of the DC power supply to give a higher open circuit voltage to enable operation of the arc at higher voltage levels and with the installation of a solenoid around the plasma reactor to magnetically rotate the are. Cathode tip erosion problems were encountered with the 1/4-inch graphite and tungsten tips which necessitated a redesign of the plasma reactor. The new plasma reactor consists of an enlarged 3/4-inch O.D. graphite tip to reduce current density and a 1-inch I.D. graphite anode. Products from MgO/CH4 scoping runs in the redesigned reactor under conditions of excess MgO gave strong indications that a breakthrough has finally been achieved i.e. that synthesis of magnesium carbides from MgO and methane in the arc discharge reactor has been demonstrated. Significant quantities of hydrocarbons, primarily C3H4 and C2H2, were detected in the headspace above hydrolyzed solid samples by GC analysis. In one run, solids glowed upon exposure to the atmosphere, strongly suggesting carbide reaction with moisture in the air, exothermically forming acetylenes which ignited instantaneously in the presence of oxygen and elevated temperatures arising from localized heat-up of the specimens.
Download or read book Conversion of Light Hydrocarbon Gases to Metal Carbides for Production of Liquid Fuels and Chemicals Quarterly Technical Status Report July 1 September 30 1995 written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book R gimen de incentivos en la econom a dominicana written by and published by . This book was released on 1982 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Conversion of Light Hydrocarbon Gases to Metal Carbides for Production of Liquid Fuels and Chemicals Quarterly Technical Status Report July 1 September 30 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 Conversion of Light Hydrocarbon Gases to Metal Carbides for Production of Liquid Fuels and Chemicals Quarterly Technical Status Report October 1 December 31 1992 written by and published by . This book was released on 1993 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Light hydrocarbon gases could be reacted with low cost alkaline earth metal oxide (CaO, MgO) in high-temperature plasma reactor to achieve very high ((less-than or equal to)100%) gas conversion to H2, CO, and the corresponding metal carbides. These carbides could be stored, transported, and hydrolyzed to acetylene or methyl acetylene, which in turn could be upgraded to a wide range of chemicals and premium liquid hydrocarbon fuels. An electric arc discharge reactor was built for converting methane. Literature reviews were made.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1996 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conversion of Light Hydrocarbon Gases to Metal Carbides for Production of Liquid Fuels and Chemicals Quarterly Technical Status Report July 1 September 30 1993 written by and published by . This book was released on 1993 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The construction of the thermal plasma reactor is nearing completion. During the reporting period, work has concentrated on the design and construction of the plasma reactor and on procurement of related accessories for process monitoring and safety. With the plasma gun system mounted in the cooling chamber assembly inside the fragmentation containment room and with the cooling water system in place, a test-firing of the arc discharge with Argon was conducted in late September. This test, unfortunately, resulted in burn-out of some parts of the plasma gun apparently due to arcing outside of the inter-electrode region, setting back the projected date for completing apparatus construction. Options for a powder feeder investigated include scale-up of a home-made fluidized bed syringe feeder, used at MIT for delivering coal to a drop-tube furnace, and the employment of a mechanical wheel-type feeder sold by Miller Thermal, Inc., of Appleton, WI, which gave a promising demonstration run at MIT. The idea of using an Argon plasma as a heat source in carrying out mechanistic studies was also considered. Thus, the plasma reactor, once completed, might be useful for this purpose as well. Future plans are to rebuild the plasma gun, to assemble a sample collection system, and to continue installing safety and process monitoring equipment. The goals for the next period are to test-fire the gun successfully with Argon, to complete and test the sample collection system with an operating inert gas plasma, and then to perform a scoping run with methane and MgO/CaO powders delivered to the plasma.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1995 with total page 1142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Download or read book Direct Conversion of Light Hydrocarbon Gases to Liquid Fuel Quarterly Technical Status Report No 31 for Fourth Quarter FY 1991 written by and published by . This book was released on 1991 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program is to investigate the direct conversion of light gaseous hydrocarbons, such as those produced during Fischer-Tropsch synthesis or as a product of gasification, to liquid transportation fuels via a partial oxidation process. The process will be tested in an existing pilot plant to obtain credible mass balances. Specific objectives to be met include determination of optimal process conditions, investigation of various processing options (e.g. feed injection, product quench, and recycle systems), and evaluation of an enhanced yield thermal/catalytic system. Economic evaluation of the various options will be performed as experimental data become available.
Download or read book Direct Conversion of Light Hydrocarbon Gases to Liquid Fuel Quarterly Technical Status Report No 23 for Second Quarter FY 1991 written by and published by . This book was released on 1991 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program is to investigate the direct conversion of light gaseous hydrocarbons, such as those produced during Fischer-Tropsch synthesis or as a product of gasification, to liquid transportation fuels via a partial oxidation process. The process will be tested in an existing pilot plant to obtain credible mass balances. Specific objectives to be met include determination of optimal process conditions, investigation of various processing options (e.g. feed injection, product quench, and recycle systems), and evaluation of an enhanced yield thermal/catalytic system. Economic evaluation of the various options will be performed as experimental data become available.
Download or read book Direct Conversion of Light Hydrocarbon Gases to Liquid Fuel Quarterly Technical Status Report No 27 for Third Quarter FY 1991 written by and published by . This book was released on 1991 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program is to investigate the direct conversion of light gaseous hydrocarbons, such as those produced during Fischer-Tropsch synthesis or as a product of gasification, to liquid transportation fuels via a partial oxidation process. The process will be tested in an existing pilot plant to obtain credible mass balances. Specific objectives to be met include determination of optimal process conditions, investigation of various processing options (e.g. feed injection, product quench, and recycle systems), and evaluation of an enhanced yield thermal/catalytic system. Economic evaluation of the various options will be performed as experimental data become available.
Download or read book Direct Catalytic Conversion of Methane and Light Hydrocarbon Gases Quarterly Report No 1 October 16 1986 January 15 1987 written by and published by . This book was released on 1987 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States will need to be able to convert coal to liquid fuels should current supplies be interrupted. The indirect method for producing fuel liquids is the gasification of the coal to synthesis gas (syngas) followed by Fischer-Tropsch synthesis to convert syngas to hydrocarbons. However, both the gasifier and the FTS processes result in the production of methane and/or light hydrocarbon by-product that negatively affect the economics of the production of liquid fuel from coal. The goal of SRI's research is thus to develop catalysts that directly convert methane and light hydrocarbons to intermediates that can, as economics dictate, be subsequently converted either to liquid fuels or value-added chemicals. SRI project 2678 is exploring two approaches to achieving the stated goal. The first approach consists of developing advanced catalysts for reforming methane. We will prepare the catalysts by reacting organometallic complexes of transition metals (Fe, Ru, Rh, and Re) with zeolitic and rare earth exchanged zeolitic supports to produce surfaceconfined metal complexes in the zeolite pores. We will then decompose the organometallic complexes to obtain very stable, highly dispersed catalysts. Our second approach entails synthesizing the porphyrin and phthalocyanine complexes of Cr, Mn, Ru, Fe, and/or Co within the pores of zeolitic supports for use as selective oxidation catalysts for methane and light hydrocarbons. We will test the catalysts in a fixed-bed isothermal microreactor in a downflow mode at (approximately)100 psi. During the first quarter of this project, we have concentrated on methane oxidation to methanol. We have synthesized phthalocyanine oxidation catalysts containing different metals (Co, Fe, and Ru) within zeolite pores. our examination of their ability to oxidize methane to methanol has indicated preliminary positive results.
Download or read book Direct Conversion of Light Hydrocarbon Gases to Liquid Fuel Quarterly Technical Status Report No 15 Fourth Quarter FY 1990 written by and published by . This book was released on 1990 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program is to investigate the direct conversion of light gaseous hydrocarbons, such as those produced during Fischer-Tropsch synthesis or as a product of gasification, to liquid transportation fuels via a partial oxidation process. The process will be tested in an existing pilot plant to obtain credible mass balances. Specific objectives to be met include determination of optimal process conditions, investigation of various processing options (e.g. feed injection, product quench, and recycle systems), and evaluation of an enhanced yield thermal/catalytic system. Economic evaluation of the various options will be performed as experimental data become available.
Download or read book Direct Conversion of Light Hydrocarbon Gases to Liquid Fuel Quarterly Technical Status Report No 19 for First Quarter FY 1991 written by and published by . This book was released on 1991 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program is to investigate the direct conversion of light gaseous hydrocarbons, such as those produced during Fischer-Tropsch synthesis or as a product of gasification, to liquid transportation fuels via a partial oxidation process. The process will be tested in an existing pilot plant to obtain credible mass balances. Specific objectives to be met include determination of optimal process conditions, investigation of various processing options (e.g. feed injection, product quench, and recycle systems), and evaluation of an enhanced yield thermal/catalytic system. Economic evaluation of the various options will be performed as experimental data become available.
Download or read book Direct Conversion of Light Hydrocarbon Gases to Liquid Fuel Quarterly Technical Status Report No 11 for Thrid Quarter FY 1990 written by and published by . This book was released on 1990 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program is to investigate the direct conversion of light gaseous hydrocarbons, such as those produced during Fischer-Tropsch synthesis or as a product of gasification, to liquid transportation fuels via a partial oxidation process. The process will be tested in an existing pilot plant to obtain credible mass balances. Specific objectives to be met include determination of optimal process conditions, investigation of various processing options (e.g. feed injection, product quench, and recycle systems), and evaluation of the various options will be performed as experimental data become available.
Download or read book Direct Catalytic Conversion of Methane and Light Hydrocarbon Gases Quarterly Report No 9 October 1 December 31 1988 written by and published by . This book was released on 1989 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this research is to develop catalysts that directly convert methane and light hydrocarbons to intermediates that later can be converted to either liquid fuels or value-added chemicals, as economics dictate. During this reporting period, we completed our IR spectroscopic examination of the Ru4/MgO and FeRu3/MgO systems under nitrogen and methane by examining FeRu3/MgO under methane. This system behaved quite differently than the same system under nitrogen. Under methane, only one very broad peak is observed at room temperature. Upon heating, the catalyst transformed so that by 300°C, the spectrum of FeRu3/MgO under methane was the same as that of Ru4/MgO. This suggests that methane promotes the segregation of the metals in the mixed metal system. The differences in catalytic activity between the FeRu3/MgO and Ru4/MgO systems may then be due to the presence of IR transparent species such as iron ions which cause different nucleation in the ruthenium clusters. We examined several systems for activity in the methane dehydrogenation reaction. Focusing on systems which produce C6 hydrocarbons since this is the most useful product. These systems all displayed low activity so that the amount of hydrocarbon product is very low. Some C6 hydrocarbon is observed over zeolite supports, but its production ceases after the first few hours of reaction. We prepared a new system, Ru4 supported on carbon, and examined its reactivity. Its activity was very low and in fact the carbon support had the same level of activity. We synthesized four new systems for examination as catalysts in the partial oxidation of methane. Three of these (PtTSPC/MgO, PtTSPC and PdTSPC on carbon) are analogs of PdTSPC/MgO. This system is of interest because we have observed the production of ethane from methane oxidation over PdTSPC/MgO at relatively low temperatures and we wished to explore its generality among close analogs.
