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榆林气田采用低温分离工艺,在天然气开采过程中需注入大量的甲醇以防止水合物的生成,因此,榆林气田采出污水中含有大量的甲醇。同时,污水吸收了天然气中的CO_2等组分而显酸性,而且还含有大量的凝析油、矿物质、悬浮物、机械性杂质等,从环保和经济等方面考虑,必须对产出的含醇污水进行综合处理。榆林气田含油含醇污水处理工艺主要由污水预处理工艺、甲醇回收工艺两部分组成。对榆林天然气处理厂预处理后的原料水
Yulin gas field using low-temperature separation process, in the natural gas extraction process need to inject a large amount of methanol to prevent the formation of hydrates, therefore, Yulin gas field production of sewage contains large amounts of methanol. At the same time, the sewage absorbs the components of the natural gas such as CO_2 and is acidic, but also contains a lot of condensate, minerals, suspended solids, mechanical impurities, etc., from the environmental and economic considerations, the output must contain Alcohol sewage comprehensive treatment. Yulin gas oil-containing wastewater treatment plant mainly by the sewage treatment process, methanol recovery process consists of two parts. Yulin natural gas processing plant after pretreatment of raw water