Saturday, September 10, 2022
Sunday, September 11, 2022
Friday, September 16, 2022
Sunday, September 11, 2022
Friday, September 16, 2022
问题:原料气先通过焦炉气预热器预热后再进入铁钼转化器。...
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
问题:当压缩机紧急停车后,应马上卸掉机内压力,并将密封气源切换为备用密...
Friday, September 16, 2022
Sunday, September 11, 2022
问题:在合成系统切合成气短期停车,投用开工加入蒸汽,是为了()。A、系统保压B、系统卸压C、触媒保温D、触媒降温...
Wednesday, January 17, 2024
Friday, September 16, 2022
问题:某装置甲醇精馏单元的入料量设计是20m<sup>3</sup>...
Thursday, September 15, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Sunday, September 11, 2022
问题:合成甲醇原料气中主要有毒介质为()。A、二氧化碳和一氧化碳B、一氧化碳和氮气C、二氧化碳和硫化氢D、一氧化碳和硫化氢...
Tuesday, January 21, 2025
Saturday, October 1, 2022
问题:甲醇具有毒性,口服()可以引起严重中毒,内服()有失明危险,()...
Friday, September 16, 2022
问题:用空气(P=0.6-0.8MPa)进行逐段吹除,逐段放空,吹至无杂物、无触媒粉,再缓慢往后串,必要时可拆开设备前阀门或法兰进行吹除,以防杂物堵塞阀门或设备...
Monday, February 6, 2023