叙述了催化裂化装置在开停工过程中不放火炬的做法，降低了轻烃放火炬造成的损耗，减少了对环境的污染。
The paper described practice of FCC plant starting and shutdown without flare, to decrease loss of light hydrocarbon and environment pollution.
叙述了催化裂化装置在开停工过程中不放火炬的做法，降低了轻烃放火炬造成的损耗，减少了对环境的污染。
The paper described practice of FCC plant starting and shutdown without flare, to decrease loss of light hydrocarbon and environment pollution.
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