%0 Journal Article
%T Catalytic Hydrogenation of Carbon Dioxige and Characterrization of Rey Supported Bimetal Catalysits<br>CO2催化氢化研究--REY负载双金属催化剂的催化作用
%A Yin Xiaolong
%A <br>银小龙
%A 吉媛媛
%A 阴丽华
%A 王常有
%A 李香兰
%A 李爱秀
%J 环境科学
%D 1993
%I 
%X This work primarily concerned with the REY and ZSM -5 supported bimetal catalysts for the hydrogenation of carbon dioxide by autoclave experiments. The catalytic properties of the catalysts were tested and the activities decreased in the following order: for carbon dioxide methanation, Ru/RE Y > NiRu/REY > NiPd/REY > Ni-Ir/REY;for synthesis of alcohols:NiCu/REY>Ni/REY > NiMn/REY > NiCo/REY. The conversion of carbon dioxide to methane is up to 76% over the 2% Ru/REY catalyst at 473 K,3. 9 MPa,ratio of hydrogen gas/carbon dioxide = 5, in a 20 hour run. The influence of reaction conditions on the NiCu/REY indicated that the selectivity for alcohols is high from 443 - 473 K. The increase of temperature and pressure of the reaction lowered the selectivity for alcohols and increased the selectivity for methane and carbon monoxide. Experiments for the investigation of the effect of solvents on carbon dioxide hy-drogenation indicated that poloar solvents such as triethy-lamine promoted the reaction more effectively than less polar solvents. FT -IR spectra indicated that the intensity of the 1400 and 1437 cm-1bands of the REY supported catalysts are higher than that of ZSM -5 supported catalysts. The peaks at 1400,1437 and 1636 cm-1 might be assigned to the absorption of NH3 coordinated to the metal ion center in the form of Ni(NH3)6]2+ and/or Ni (NH3)5NO3]+.
%K CO2
%K catalytic hydrogenation
%K bimetal catalyst zeolite
%K infrered spectra<br>催化氢化
%K 二氧化碳
%K 双金属催化剂
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=74145C1A317B6D1E678E8D58F6A56FBB&yid=D418FDC97F7C2EBA&vid=F3583C8E78166B9E&iid=94C357A881DFC066&sid=2A8D03AD8076A2E3&eid=EA389574707BDED3&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=7