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摘要:------------------------------------------------------------------------.394.5.1 概述---------------------------------------------------------------------------------------------394.5.2 启动前状态-----------------------------------------------..
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------------------------------------------------------------------------.39 4.5.1 概述---------------------------------------------------------------------------------------------39 4.5.2 启动前状态------------------------------------------------------------------------------------40 4.5.3 正常启动次序---------------------------------------------------------------------------------41 4.5.4 正常启动操作步骤---------------------------------------------------------------------------42 4.6 常规操作---------------------------------------------------------------------------------------------.44 4.6.1 概述---------------------------------------------------------------------------------------------44 4.6.2 进料气压缩机和分离设备------------------------------------------------------------------46 4.6.3 分子筛脱水单元------------------------------------------------------------------------------48 4.6.4 吸收单元---------------------------------------------------------------------------------------51 4.6.5 制冷单元---------------------------------------------------------------------------------------54 4.6.6 脱丁烷单元------------------------------------------------------------------------------------57 4.7 关断---------------------------------------------------------------------------------------------------.59 4.7.1 概述---------------------------------------------------------------------------------------------59 4.7.2 正常关断逻辑---------------------------------------------------------------------------------60 4.7.3 轻烃处理和化学品的入库------------------------------------------------------------------62 4.7.4 维修准备---------------------------------------------------------------------------------------63 4.7.5 生产关断模式---------------------------------------------------------------------------------63 4.8 维护与保养------------------------------------------------------------------- |
