石油炼制与化工 ›› 2016, Vol. 47 ›› Issue (1): 54-57.
• 加工工艺 • 上一篇 下一篇
严钧
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摘要：
介绍了某炼化公司针对芳烃联合装置吸附分离单元吸附剂更换停工期间退出的对二乙苯和二甲苯混合物料总氧过高的问题，对各种处理方案开展评估，进行了将该物料以较高比例掺混进入连续重整装置预加氢单元的工业试验。对二乙苯含氧化合物在反应压力2.5 MPa、温度304 ℃、体积空速5.4 h－1的连续重整预加氢反应工况下完成加氢脱氧反应，实现了高效回收C8芳烃（C8A），避免按重芳烃产品出厂，处理2 390 t对二乙苯和二甲苯混合物可增效66.5 万元。
关键词: 连续重整, 对二甲苯, 对二乙苯, 氧化物, 加氢
Abstract:
To solve the problem of high oxygen content of unloading PDEB and xylene mixture from absorption tower when the aromatics combination plant shuts down, the industrial test which PDEB/C8A mixture was blended at a higher proportion into CCR feed for pre-hydrogenation was conducted The hydrodeoxygenation reaction removes completely the oxides in PDEB at the reaction conditions of 2.5 MPa, 304 ℃, and space velocity of 5.4 h-1. Xylene is recovered efficiently and avoids C8A is sold as heavy aromatics product. The profit is 66.5×104 Yuan RMB.
Key words: CCR, PX, PDEB, oxide, hydrogenation
严钧. 连续重整装置处理高氧含量对二乙苯的工业试验[J]. 石油炼制与化工, 2016, 47(1): 54-57.
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