亚洲自拍露出极品_国产播放隔着超薄丝袜进入_国产高清视频在线观看_亚洲系列一区中文字幕-99热9这里不卡,日韩AV一区二区中文字幕在线观看,98超碰人人与人人,伊人久久亚瑟综合

Shale oil refining system

Release Time：2020-07-27

Shale oil is a brown, viscous liquid product produced by thermal decomposition of organic matter during oil shale dry distillation.

In the context of the shortage of oil resources, oil shale, as a rich resource, has received more and more attention.

Shale oil generally contains more impurities, which has a great impact on its further processing and utilization.

Hydrogenation, as a very important means of removing impurities and improving product quality in petrochemical production, is undoubtedly the preferred process for processing shale oil.