2001, Volume 3, Issue 2
Strategic Study of CAE >> 2001, Volume 3, Issue 2
Simulation on Scaling-up for Coupling to Oxalic Acid in Gaseous Phase
Key Lab of C1 Chemical Technology, Tianjin University, Tianjing 300072, China
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Abstract
The synthesis of oxalic acid by CO coupling reaction in gaseous phase is a circulating system with multi-step reactions. The best catalyst was prepared and the reaction mechanism was proposed in the past work. It was found that the key problem for scaling-up this process is to match the CO coupling reaction rate with the regeneration rate. In this thesis, these two reactions were simulated by analyzing the sensitivity of operating parameters based on the acquired reaction kinetics. It was proposed that the match of these two reactions is a complex non-linear process. The key technique was investigated during the scale-up experiments of catalyst preparation and CO coupling reaction. By analyzing the simulation and experimental results, the key problem for the match of CO coupling with regeneration reaction was resolved. The scale-up circulating system for oxalic production was continuously run for 1000 hours and no intermediates was vented. It was proved that the match of these two reactions was achieved and an environmentally benign process for oxalic acid production has been set-up after a series of study. It provides a new technology for industrial production of oxalic acid.
Keywords
CO coupling ; oxalic acid ; scale-up experiment ; catalytic engineering
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References
[ 1 ] AgullA , AlderJS , FreemcmDN , etal.FocusonC1Chemistry .C1Chemistry [J], 1983 , 6 2 (3) :5 7～ 6 5
[ 2 ] GenhuiXu , XinbinMa , FeiHe , HongFangChen .Charactericsofcatalystforcarbonmonoxidecouplingreaction [J].Ind .Eng .Chem .Res ., 1995 , 34:2 379～ 2 382
[ 3 ] 许根慧 , 等 气相法CO偶联再生循环制草酸二乙酯 , 中国发明专利ZL :96 10 9811 2。 link1
[ 4 ] 马新宾 , 许根慧 , 陈锦文 , 陈洪钫 CO气相催化偶联合成草酸二乙酯动力学 , 化工学报 [J], 1995 , 46 (1) :5 0～ 5 6 link1
[ 5 ] 陈锦文 , 许根慧 , 李振花 , 陈洪钫 一氧化碳偶联再生反应动力学 [J], 化工学报 , 1993, 44 (1) :6 6～ 71 link1
[ 6 ] 张毅民 , 马新宾 , 许根慧 草酸二乙酯水解动力学[A].化工工艺研究进展 [C].武汉 :1998, 32 6～ 32 9
[ 7 ] XuGen hui, LiYan chuen , LiZhen hua , etal.Ki neticsoftheHydrogenationofDiethylOxalatetoEthyleneGlycol [J].Ind .Eng .Chem .Res ., 1995 , 34 (7) :2 371～ 2 376
[ 8 ] MaoLanfang , XuGenhui, MaXinbin , etal.Simu lationofcyclicalprocessforCOCoupling Regeneration[A ].ProceedingsSecondJointChina/U .S .AChemicalEngineeringConference [C ].Beijing , 1997, Vol. 1, 2 5 8～ 2 6 1
[ 9 ] 王保伟 , 马新宾 , 毛兰芳 , 等 CO偶联再生反应过程模拟 [A].化工工艺研究进展 [C].武汉 :1998, 389～ 392
[10] WangBaowei, MaXinbin , XuGenhui, etal.Opti mizationofcyclicalprocessforCOcouplingregenera tionreactions [J].ComputersChem .Engng , 2 0 0 0 , 2 4 (7) :341～ 345
[11] 王保伟 CO偶联制草酸二乙酯催化剂工程研究[D] 天津 :天津大学化工学院 , 1998
[12] 王保伟 , 马新宾 , 许根慧 一氧化碳偶联制草酸酯反应工程研究 [J] 化学工业与工程 , 1998, 15 (3) :10～ 14 link1
[13] 李阳 , 王保伟 , 许根慧 激光散射法测定草酸结晶介稳区 [J].化工学报 , 2 0 0 0 , 5 1 (2 ) :2 74～ 2 77 link1
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