摘要
依托于20万吨/年乙二醇工业装置及公用工程,建设了3000吨/年草酸二甲酯(DMO)工业侧线试验装置,并开展了侧线试验。在该装置上装填自研DM系列工业催化剂,在工业原料条件下,分析了催化剂使用过程中床层压降、温度变化情况,考察了不同空速下催化剂活性。通过高、低空速运行对比,表明在工业条件下,DM系列工业催化剂在高空速下具有较低的操作温度(汽包温度115℃)且表现出高的催化活性;原料亚硝酸甲酯(MN)平均转化率为74%,极大减少了系统中MN累积,有效提高了装置运行中的安全性与稳定性,预期具有两年以上的使用周期。
Based on the 200,000 t/a ethylene glycol(EG)of industrial installations and public project,an industrial side-line test device of 3000 t/a dimethyl oxalate(DMO)was constructed and the side-line test were carried out.The self-developed DM series of industrialized catalysts were loaded on the device,and the changes of the bed pressure drop and temperature during the use of catalyst were analyzed under the condition of industrial raw materials,and the catalyst activity under different space velocity was investigated.The comparative analysis of the results at high and low space velocity showed that the DM series industrialized catalysts had a lower operating temperature(drum temperature 115℃)and exhibited high catalytic activity at higher space velocity.The average conversion rate of raw material methyl nitrite(MN)was 74%,which can greatly reduce the accumulation of MN in the production system,effectively improve the safety and the stability of the industrial device during operation.And it was expected to have a service life of more than two years.
作者
梁旭
赵立红
崔发科
韩联国
李丰
张超奇
魏灵朝
蒋元力
LIANG Xu;ZHAO Li-hong;CUI Fa-ke;HAN Lian-guo;LI Feng;ZHANG Chao-qi;WEI Ling-chao;JIANG Yuan-li(Research Institute of Henan Energy and Chemical Industry Group Limited Company,Zhengzhou 450046,China;Shangqiu Guolong New Material Co.,Ltd.,Shangqiu 476000,China;Anyang Yongjin Chemical Co.,Ltd.,Anyang 45133,China)
出处
《天然气化工—C1化学与化工》
CAS
CSCD
北大核心
2020年第6期48-51,57,共5页
Natural Gas Chemical Industry
关键词
草酸二甲酯
工业侧线
DM系列催化剂
高活性
dimethyl oxalate(DMO)
industrial side
DM series catalysts
high activity
