绕管水冷甲醇合成反应器技术的应用

Application of spiral-wound water-cooled methanol synthesis reactor technology

介绍了浙江石油化工有限公司40万t/a甲醇合成装置中绕管水冷甲醇合成反应器的结构,及甲醇合成装置运行48 h性能考核情况。结果表明:在100%满负荷运行状态下,装置粗甲醇产量约1317 t/d,各项技术指标均优于保证值;催化剂床层同平面多点温差<4℃、反应器平均传热系数高于883 W/(m^(2)·K)、反应器压降控制在60 kPa~80 kPa、催化剂CO单程转化率高达90%(前期活性)、碳效率>99%,说明绕管水冷甲醇合成反应器技术具有床层均温、移热高效、压降低、催化生产能力良好等工艺特点,可适配国内甲醇催化剂技术。

The structure of spiral-wo und water-cooled methanol synthesis reactor of 400,000 t/a methanol synthesis project in Zhejiang Petroleum&Chemical Co.,Ltd.was introduced.During the 48 h performance test,under 100%full load operation,the crude methanol output of the unit was about 1,317 t/d,and all technical indicators were better than the guaranteed values.The multipoint temperature difference within the same plane of the catalyst bed was less than 4℃.The average heat transfer coefficient of reactor was higher than 883 W/(m^(2)·K).The reactor pressure drop was controlled at 60 k Pa-80 kPa.The CO single-pass conversion was up to 90%(start of run).The carbon efficiency was higher than 99%.This showed that the spiral-wound water-cooled methanol synthesis reactor had the characteristics of uniform bed temperature,efficient heat transfer,low pressure drop and good catalytic production,suitable for domestic methanol catalyst technology.