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扼要讨论了原油流动性改进剂 (降凝剂 )的作用机理、性能要求及生产技术关键。分别介绍了华冠石油化工公司生产的降凝剂BEM 3在输送胜利原油的长 6 5 5 .37km的鲁宁 (临邑—仪征 )线和长 2 5 2km的东 (营 )黄 (岛 )老线 ,BEM 5P在输送中原原油的长 2 82 .5 5km的中洛 (濮阳—洛阳 )线和长 2 4 1.9km的濮 (阳 )临 (邑 )线以及在大港油田长 4 7.8km的一段集输干线 ,BEM 6N在输送南阳原油的长 4 2 2 .1km的魏 (岗 )荆 (门 )线和输送高凝高粘胜利原油的长约 5 1.6km的河 (口 )沾 (化 )线 ,BEM 7H在顺序输送国内外多种原油的长 2 0 1km的洪 (湖 )荆 (门 )线的应用工艺、降凝降粘效果及降低输量下的高效、经济、安全运转。在魏荆线上用BEM 6N所作的现场测试表明 ,在析蜡高峰期的过泵剪切和重复加热使加剂原油低温流动性显著恶化 ,在析蜡点以上的剪切和重复加热则影响不大。表 9参 6。
Briefly discussed the mechanism of action of crude oil fluidity improver (pour point depressant), performance requirements and production technology. The paper introduces the condensate pour point depressant BEM 3 produced by Huaguan Petrochemical Company in the area of Luning-Yizheng (655.37km long) and Huang (Island) of 254km long transporting Shengli crude oil, In the old line, BEM 5P is operating at Zhongluo (Puyang-Luoyang) Line, which is 2 82.55km long, and Puyang Line, which is 24.4km long, and a 4 7.8km long line at the Dagang Oil Field A collection and transportation trunkline, BEM 6N, is connected with a 4,221-km-long Jing (Gate) line transporting Nanyang crude oil and a 5,1.6 km long river transporting crude oil with high viscosity and high viscosity. ) Line, BEM 7H in the order of delivery of a variety of crude oil at home and abroad a long 210km Hong (Lake) Jing (door) line of application process, pour point depressing viscosity reduction effect and reduce the volume under the high efficiency, economical and safe operation. Field tests with BEM 6N on the Wei Jing line showed that over-pumping shear and repeated heating at the peak of the wax precipitation significantly deteriorated the low-temperature fluidity of the additive crudes and the shearing and repeated heating above the wax fraction affected Not big. Table 9 reference 6.