Monday, December 18, 2023
Monday, December 18, 2023
Tuesday, September 13, 2022
Sunday, March 3, 2024
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Tuesday, September 13, 2022
问题:下列几种物质()属于均相物质。A、悬浊液B、乳浊液C、溶液D、CO2和O2混合物E、含尘气体F、含雾气体
Thursday, September 15, 2022
Thursday, September 15, 2022
Sunday, September 11, 2022
问题:25#K15塔通入氮气的目的是()A、将H2S解析出来B、将CO2解析出来C、减小K09塔的热负荷D、提高H2S浓度
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:23#如果长期停车,变换炉泄压后,炉内会产生煤气冷凝液,需要用N2进行置换,防止外界空气进入,将底部冷凝液排尽;防止凝液浸泡触媒。
Tuesday, September 13, 2022
问题:24#经过NH3解吸段后设计温度是将粗煤气温度降至180℃。
Thursday, September 15, 2022
问题:防止粗煤气中夹带的碳酸氢铵由于温度降低而析出造成的管路堵塞,在必要时向冷凝器内喷入酚水。
Wednesday, March 15, 2023
问题:23#系统压差增高原因()A、床层阻力大,触媒粉化成积碳B、阀门管线堵塞C、煤气负荷降低
Monday, December 18, 2023
问题:变换炉需要检修,用P-218控制泄压速度为0.1Mpa/min,当系统压力泄到0.1 Mpa时,通入低压氮气进行置换。
Tuesday, September 13, 2022
Sunday, January 14, 2024
Wednesday, February 21, 2024