用无声放电转化甲烷和二氧化碳同时制备合成气与烃(英文)  

CO-GENERATION OF SYNGAS AND HYDROCARBONS FROM METHANE AND CARBON DIOXIDE USING DIELECTRIC BARRIER DISCHARGES

作　　者：姜涛[1] 张悝[1] 刘昌俊[1] 李阳[1] 许根慧[1] B.Eliasson U.Kogelschatz 

机构地区：[1]天津大学一碳化工国家重点实验室,天津300072 [2]ABB Corporate Research Ltd.,5405Baden,Switzerland

出　　处：《燃料化学学报》2001年第1期6-11,共6页Journal of Fuel Chemistry and Technology

摘　　要：在低温常压条件下 ,研究了在无声放电反应器中以A型分子筛为催化剂从甲烷和二氧化碳合成烃和合成气 ,实现了在无声放电反应器中同时合成烃和合成气。实验在原料气流量 2 0 0～ 6 0 0ml/min、原料气甲烷和二氧化碳摩尔比 1/1～ 3/1及输入功率 10 0～ 5 0 0W的范围内进行。研究结果表明 ,低原料气流量有利于甲烷和二氧化碳的转化 ,而高原料气流量有利于烃的生成 ;原料气甲烷和二氧化碳摩尔比对制得合成气的H2 /CO摩尔比的影响最显著 ;甲烷和二氧化碳转化率及合成气和烃的产率均随输入功率的增加而提高。而所研究的范围内 ,当原料气流量为 2 0 0ml/min、甲烷和二氧化碳摩尔比为 1/1、输入功率为 5 0 0W时 ,甲烷和二氧化碳转化率达到最高值 ,分别为6 4%和 39%。以此法制备的合成气的H2 /CO摩尔比可以在很宽的范围内变化 ,本研究合成气H2 /CO摩尔比的变化范围是 0 .7～ 3 .1。Two major greenhouse gases, methane and carbon dioxide, were converted to syngas and hydrocarbons over zeolite catalyst at low temperature and atmospheric pressure in a high power dielectric barrier discharge reactor. Co-generation of syngas and hydrocarbons was demonstrated in such a reactor.Parameters investigated in this study included flow rate of the feed gas, the input power and the molar ratio of CH 4 to CO 2 in the feed. Results indicated that low flow rate favored the conversion of CH 4 and CO 2 while high flow rate led to the production of hydrocarbons. Increasing the input power resulted in high conversion of methane and carbon dioxide and high productivity of syngas and hydrocarbons. The ratio of CH 4/CO 2 in the feed gas had the most significant effect on the ratio of H 2/CO in syngas. The highest conversion of CH 4 and CO 2 was 64% and 39%, respectively, at a molar ratio of CH 4/CO 2 of 1/1, a total flow rate of 200 ml/min and an input power of 500 W. Soproduced syngas showed an arbitrary composition (H 2/CO ratio) with molar ratio of H 2/CO varied in the range from 0.7 to 3.1.

关 键 词：二氧化碳 甲烷 无声放电 温室气体 烃 合成气 一氧化碳 氢气 摩尔比 

分 类 号：TE665.3[石油与天然气工程—油气加工工程]