问题:P-102出口冲洗氢作用是什么?为什么要关闭泵出口处冲洗氢阀?...
Saturday, September 10, 2022
Sunday, September 11, 2022
问题:关于加热炉鼓风机的启动步骤,下列步骤正确的是()。...
Tuesday, September 13, 2022
问题:装置停工过程中通过()在装置内循环,在催化剂的表面形成一层保护膜...
Sunday, September 11, 2022
Tuesday, September 13, 2022
问题:紧急泄压选用0.7MPa/min、2.1MPa/min的原则是什么?是否装置的总压不同也随之有所变化?...
Friday, September 16, 2022
Tuesday, September 13, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
问题:吸收是利用混合气体组分在溶剂中挥发度的差异,以分离其中各气体组分...
Tuesday, September 13, 2022
问题:冷却水、地面水排放系统从环保的角度是如何设置的?...
Tuesday, September 13, 2022
问题:催化剂硫化时,需要就地排放或采样时,应采取的安全措施有()。...
Tuesday, September 13, 2022
问题:往复式压缩机填料冷却水回水有气是什么原因,怎样处理?...
Sunday, September 11, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:关联指数BMCI值又称芳烃指数,是依据油品最基本的两性质,即()和密度建立起的关联指标。...
Saturday, December 16, 2023
Tuesday, September 13, 2022
Sunday, September 11, 2022
问题:加热炉烟道气露点腐蚀也称为电化学腐蚀,这种电化学腐蚀的速度与化学...
Sunday, September 11, 2022