问题:氢含量高可以及时地把电炉的热量带入催化剂层,可以起到保护()的作用。A、内件B、塔壁C、电炉D、催化剂...
Sunday, March 17, 2024
Tuesday, September 13, 2022
问题:惰性气体含量增加,H<sub>2</sub>、N<sub>2</...
Tuesday, September 13, 2022
Friday, March 15, 2024
问题:过滤式防毒面具防氨滤毒罐型号及颜色正确的是()。A、MP1+红色B、MP2+绿色。C、MP3+蓝色D、MP4+灰色E、MP5+黄色...
Friday, May 5, 2023
Wednesday, February 22, 2023
问题:合成塔内套试压爆炸的主要原因是()A、内套制造质量差B、试压介质不符合要求C、试压压力太高D、试压压力表坏...
Monday, September 11, 2023
问题:氨合成基本工艺步骤为()、气体的预热和合成、氨的分离、未反应氢氮...
Tuesday, September 13, 2022
问题:发生火灾、爆炸事故处理,白天疏散范围()米,夜间则在()米。...
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:正常运行时,必需保证适量塔前气流经合成塔环隙空间。()...
Sunday, October 1, 2023
Tuesday, September 13, 2022
问题:冷冻系数值越大,说明冷冻机外加机械能的利用率越()。...
Tuesday, September 13, 2022
问题:外来施工人员在进入氨区内施工前,须经安全教育并办理安全技术交底等...
Tuesday, September 13, 2022
问题:合成气压缩机干气密封系统中来自低压氮管网压力为()的低压氮气,首先经过密封气过滤器过滤掉()以上的杂质后分成两股,分别作为高、低压缸()和()。...
Wednesday, February 1, 2023
Tuesday, September 13, 2022
Monday, September 11, 2023
Tuesday, September 13, 2022
Friday, May 19, 2023