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    188宝金博页面版: The Methanation of CO and CO2 in α-Al2O3 Supported Ni Catalysts

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    内容提示： 301 The Search for a New Raw Material Base for Ethylene Production For the past 5 years, especially in the USA, W.Germany and The Netherlands, there have been many research programmes in progress which are attempting to enlarge the "classical" ethylene raw material basis with hydrogenated heavy oil residues (Erdoel und Kohle 33 (1980) 16.34). Parallel to these activities a q&wing interest in the dehydration of ethanol on A1203 or Al observed (Hvdrocarbon P 03-SiO2 can be rocessinq (1976) 125). Ethanol shou...

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    301 The Search for a New Raw Material Base for Ethylene Production For the past 5 years, especially in the USA, W.Germany and The Netherlands, there have been many research programmes in progress which are attempting to enlarge the "classical" ethylene raw material basis with hydrogenated heavy oil residues (Erdoel und Kohle 33 (1980) 16.34). Parallel to these activities a q&wing interest in the dehydration of ethanol on A1203 or Al observed (Hvdrocarbon P 03-SiO2 can be rocessinq (1976) 125). Ethanol should be produced for ’ this purpose from biomass. This technology may have a big future, mainly in Brazil, India and Peru. In the USA and W.Germany, much more attention is being paid to the direct production of ethylene from synthesis gas (DOW-techology), using methanol by the modified Mob/l Oil process (BASF, Eur.Pat.Appl. 0016 405 Bl (1981): Hoechst. Eur.Pat.Aool. 0023 303 Al (l&O)).In both cases, the basic raw material is coal. At present and in the near future, it seems probable that ethylene will be partially produced from coal. However, further down the road, it seems likely that biomass will gain the upper hand. The Methanation of CO and CO7 in a-Al703 Supported Ni Catalysts Prof. S. Kasaoka and his co- workers (Okayama University, Japan) have studied the methanation of CO and CO2 over a-A1203-supported Ni catalvsts foure Nl. Ni + Y. Ni + La. Ni + K) using both-a temperature . programmed reaction method or a constant-temperature flow reactor operated at atmospheric pressure and between 2000 and 5500C. They found that two types of carbonaceous species were pr"esent in the CO + H2 system but only one was present in the CO2 + H2 system, the latter type being the same as one of those found in the CO system. The other species found in the CO + H2 system contributed to the Fischer-Tropsch reaction and inhibited the methanation reaction. A third species was found in the CO + H2 system at high temperatures; it was concluded that this stemmed from the disorooortionation of CO and that it contributed to the methanation reaction at high temperatures. CALENDAROFFORTHCOMINGEVENTS For the FULL CALENDAR see APPLIED CATALYSIS, VOL. 4, NO. 1, pp. 102-103. New Items: 1983 Feb. 28-March 4 Caracas, Venezuela June 12-15 Toronto, Canada September 18-22, San Louis, Argentina 2nd French-Venezuelan Colloquium on Catalysis and 6th Venezuelan l%Zting on Catalysis 57th Colloid and Surface Science Symposium of the American Chemical Society III Jornadas Argentinas de Catalisis Contact: Dr. N.P. Martinez, Sec. Catalisis, INTEVEP, P.O. Box 76343, Caracas 1070 A, Venezuela Contact: Prof. A.W. Neumann, Dept. of Mech.Eng., University of Toronto, Toronto, Canada M5S lA4 Contact: Dr. 3. Rivarola, Dept. Quimica, Universidad National San Luis, San Luis, Argentina.

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