水合物法分离催化裂化干气的相平衡研究Study on Phase Equilibrium of FCC Dry Gas Separation via Hydrate Formation Processes
王秀林,侯建国,王成硕,张勃,宋鹏飞,高振,张瑜,姚辉超,穆祥宇
摘要(Abstract):
石油炼厂副产大量的催化裂化干气,常规的深冷分离方法存在能耗高、投资大的问题。水合物分离法是实现低沸点混合气体分离的一种新技术,其操作条件温和,降低了操作工艺要求和设备费用。采用实验研究方法,选择典型催化裂化干气组分,进行油水乳液体系中水合分离催化裂化干气的相平衡研究,分别考察温度、压力、初始气液体积比、乳化剂浓度和油水体积比等因素对水合分离的影响。结果表明,温度、压力、初始气液体积比、乳化剂浓度和油水体积比对水合分离催化裂化干气具有显著影响,分离效果随系统温度的降低或系统压力的升高或初始气液比的降低而提高。水合分离催化裂化干气的最佳操作条件为:系统温度274.15 K,压力5.0 MPa,初始气-液比90(V/V),油水比1.0(V/V),最佳乳化剂浓度配比span20(0.1%(wt))+oπ(1.0%(wt))。研究表明,在油水乳液体系中,采用水合分离方法催化裂化干气方法可行,具有很好的分离效果和工业应用潜力。
关键词(KeyWords): 水合物;乳液;催化裂化干气;分离
基金项目(Foundation):
作者(Author): 王秀林,侯建国,王成硕,张勃,宋鹏飞,高振,张瑜,姚辉超,穆祥宇
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