| 三相搅拌反应釜中合成气直接合成二甲醚 |
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| 引用本文： | 刘殿华,徐江,张海涛,房鼎业.三相搅拌反应釜中合成气直接合成二甲醚[J].化工学报,2002,53(1):103-106. |
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| 作者姓名： | 刘殿华 徐江 张海涛 房鼎业 |
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| 作者单位： | 华东理工大学化学工程系 |
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| 基金项目： | 中国石化 (集团 )公司资助项目 (No .2 0 0 0 0 2 )~~ |
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| 摘 要： | 引 言二甲醚可替代氟里昂作制冷剂和喷射剂 ,减少对大气的污染 ;可作民用燃料 ,提高热值 ;可代替柴油 ,作柴油发动机燃料 ;可作汽车燃料 ,提高发动机的动力性能 ;可作为优良的溶剂和泡沫塑料的发泡剂 ;可生产Ｎ ,Ｎ -二甲基苯胺、乙酸甲酯等化工产品1～ 4 ] .最早的二甲醚产品是从高压合成甲醇的副产品中分离回收得到 ,随着新型低压甲醇合成催化剂的开发 ,甲醇的选择性提高 ,这种方法已被淘汰 .目前二甲醚的工业生产主要是二步法 ,即合成气在铜基催化剂上生成甲醇 ,甲醇在分子筛催化剂上脱水生成二甲醚5] .由于路线长 ,设备投资高 ,开发…
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| 关 键 词： | 合成气 二甲醚 三相反应 搅拌反应釜 合成 制冷剂 |
| 文章编号： | 0438-1157(2002)01-0103-04 |
| 修稿时间： | 2001年7月12日 |
DIRECT SYNTHESIS OF DIMETHYL ETHER FROM SYNGAS IN THREE-PAHASE AGITATED REACTORS |
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| LIU Dianhua,XU Jiang,ZHANG Haitao,FANG Dingye.DIRECT SYNTHESIS OF DIMETHYL ETHER FROM SYNGAS IN THREE-PAHASE AGITATED REACTORS[J].Journal of Chemical Industry and Engineering(China),2002,53(1):103-106. |
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| Authors: | LIU Dianhua XU Jiang ZHANG Haitao FANG Dingye |
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| Abstract: | One-step synthesis of DME (dimethyl ether) from syngas on hybrid catalyst is studied.In the experiment,the effects of variables including composition of feed gas,temperature and pressure are studied under the condition as follows:the catalyst was composed of C302 methanol synthesis catalyst and CM-3-1 methanol dehydration catalyst (mixing ratio 1∶1).Liquid paraffin is used as inert solvent.The reaction temperature is in the range of 230-270℃ and the pressure is in the range of 3.0-5.0MPa.It turns out that with the temperature and pressure increasing the conversion of carbon,the selectivity and production rate of dimethyl ether increase,while the selectivity and production rate of methanol decrease.Furthermore,both the conversion of carbon and the selectivity of dimethyl ether are high for the syngas of appropriate CO 2. |
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| Keywords: | syngas DME three-phase reaction agitated reactor |
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