磷石膏、NH3联合矿化天然气净化厂尾气中 CO2流程模拟.pdfVIP

学兔兔学兔兔 石 油 与 天 然 气 化 工 12 CHEMICAL ENGINEERING OF OIL＆ GAS 2O15 磷石膏、NH3联合矿化天然气净化厂 尾气中CO2的流程模拟 林 婷 魏文韫 刘凌岭 余徽 四川大学化学工程学院 摘 要 针对CCUS新工艺——磷石膏、NH。联合矿化天然气净化厂排放尾气中COz，应用流程 模拟方法，在物性估算、模型建立的基础上，对磷石膏矿化CO 反应的工艺条件进行了优化，提出反应 温度为6O℃、反应时间为100 rain的优化方案。对比优化后工艺条件与现有工艺条件的模拟结果可 知，优化后尾气中CO 、NH。、磷石膏排放量比现有工艺排放量均减少3 以上。以降低．7-程能耗为优 化目标，通过对全流程进行换热网络的设计，可使热公用工程能耗降低 l5 ，冷公用工程能耗降低 5．6 。 关键词 磷石膏 NH。 天然气净化厂 COz 流程模拟 换热网络 中图分类号：TE992．1 文献标志码：A DOI：10．3969／j．issn．1007—3426．2015．01．003 Mineralization process simulation of CO2 in tail gas of natural gas purification plant by phosphor gypsum combined with ammonia Lin Ting，Wei Wenyun，Liu Lingling，Yu Hui (School of Chemical Engineering，Sichuan University，Chengdu 610065，China) Abstract：Using CCUS new technology of phosphor gypsum，ammonia combined mineralizing CO2 in tail gas of natural gas purification plant，and based on estimation of physical parameters and model establishment，the process conditions for making use of the phosphorus gypsum mineralization of CO2 were optimized with process simulation method．It proposed the optimized reaction temperature was 60℃，and the reaction time was 100 minutes．Compared the simulation results of optimized process conditions with the existing technology conditions，it was concluded that the exhaust gas of C0 2， N H3，phosphor gypsum emissions were reduced by more than 3 compared with the existing process emissions．Aimed at the optimization goal of reducing the energy consumption，the heat exchang