In conclusion some principles of oil refinery processes optimization are described.

在结论中描述了炼油工艺优化的一些原则。

youdao

Refinery gas is mostly methane and hydrogen produced as a by-product in the many refining processes.

气是许多炼油过程中产生的副产品，主要是甲烷和氢气。

youdao

FCC is one of the most important processes in the refinery. The spent catalyst from FCC units is buried in most refineries. The method may pollute environment and waste of the catalyst.

催化裂化是炼油厂中一个重要的加工工艺，所排出的废催化剂目前国内多数采用填埋法处理，不仅容易污染环境，而且浪费资源。

youdao