使用斯派莎克的自动排气阀可排除蒸汽系统中的空气及其它不凝性气体，同时不会泄漏蒸汽。
Use automatic exhaust valve Spirax Sarco steam system to exclude air and other non-condensable gases, while not leaking steam.
脱附油作为蒸汽裂解制乙烯原料，与凝析油相比，在相同的工艺条件下乙烯收率可提高6.5个百分点。
As the steam cracking feedstocks, the ethylene yield of the desorption oil increased 6.5 percentage compared to the condensate oil in the similar conditions.
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