铁-氧化还原法脱硫化氢技术进展

从20世纪20年代就发展起来的液体氧化还原脱硫工艺，现最好的代表是以“铁-氧化还原工艺”或“螫合铁工艺”。此工艺已为用户服务了25年以上，现能经济地用于每日20t硫以下规模的装置，趋势是不断提高硫回收率(一般已达99．9％以上)。

浅谈大庆徐深气田污水站建设遇到的问题及解决措施

徐深气田为大庆油田主力气田,目前年产气量约18亿方,日产污水量约900方,并呈现逐年较快增长趋势。根据常年对徐深气田污水水质化验数据统计,发现多数气井污水表现出凝析水特征,少数气井污水表现地层水特征;整体来说,气田污水总矿化度较高(300~20000mg/L),氯离子含量高(200~15000mg/L),石油类物质含量较高(20~1000mg/L),硫化物含量较高(0~30mg/L),属于高矿化度、高含油和高含硫污水;同时,在气田生产过程中,还需往气井中加入甲醇、泡排剂、缓蚀剂和消泡剂等药剂,致使气田污水性质十分复杂,处理难度大。徐深气田污水原来一直通过掺进油田污水中,并通过油田污水站统一处理,但是随着近年来气田污水水量不断增大,其对油田污水站水质冲击越来越大,原油田污水站工艺无法满足气田污水处理需要,出水水质无法达标。为了满足气田污水处理需要,大庆油田规划新建一座独立的气田污水站,本次将大庆徐深气田污水处理站建设过程中遇到的主要问题及最终解决措施分享如下。

Commercial Application of UFR to VRDS Unit Expansion at Qilu Petrochemical Company

Technology and commercial application of UFR to VRDS unit expansion at Qilu Petrochemical Company, for which engineering work was done by SINOPEC Engineering Incorporation （the former Beijing Design Institute）, were introduced. Successful experience for the first commercial application of up-flow reactor technology and debottlenecking of the unit were summarized. The findings revealed a new route for inferior residue hydrotreating and revamping the existing units of the like.