脱水耦合逆水气变换制一氧化碳过程研究  

Dehydration Coupled Reverse Water Gas Shift for Production Carbon Monoxide

作　　者：熊果[1] 胡黄灿 刘桥云[1] 曾力 徐文婷 杨宏昀 Xiong Guo;Hu Huangcan;Liu Qiaoyun;Zeng Li;Xu Wenting;Yang Hongyun(Hu'nan Xiangtan Iron&Steel Group Co.,Ltd.,Hu'nan,411101;College of Chemical Engineering,Xiangtan University,Hu'nan,411105)

机构地区：[1]湖南华菱湘潭钢铁有限公司,湖南411101 [2]湘潭大学化工学院,湖南411105

出　　处：《当代化工研究》2024年第19期185-187,共3页Modern Chemical Research

基　　金：国家自然科学基金面上项目“PET废塑料降解用拟均相纳米催化剂的制备新技术及应用”(项目编号:22178297)。

摘　　要：逆水气变换制是CO为CO_(2)加氢二步法合成甲醇过程中的第一步。本文在逆水气变换反应过程引入脱水耦合反应,突破该反应在低温下的平衡限制。本文考察了脱水剂性能、脱水剂含量、H2与CO进料比等对该反应的影响,证明添加20%的脱水剂即可至少提高商用催化剂低温(220~330℃)活性4~5倍,并获得远超平衡限制的CO_(2)转化率。Reverse water gas shift(RWGS)reaction for CO production is the first step in the two-step process of methanol synthesis by CO_(2)hydrogenation.This article proposed to break the equilibrium of RWGS at low temperatures by adding dehydration agents.It examined the effects of dehydrating agents,dehydrating agent content,reactant feed ratio,and other factors on RWGS.It was proved that the addition of dehydration agent can significantly improve the activity of commercial catalysts at low temperatures(220~300℃)by at least 4~5 times and made the CO_(2)conversion exceed the equilibrium limit of RWGS.

关 键 词：碳中和 RWGS反应 二氧化碳加氢 脱水剂 

分 类 号：TQ[化学工程]