摘要
加强环烷基重油深加工具有极其重要的工业和经济意义。以环烷基秦皇岛原油减压蜡油馏分(350~500℃)为原料,提出了两段提升管催化裂解与催化裂化柴油(LCO)深度加氢处理耦合的DHTMP新工艺。基于中试试验数据,对以生产低碳烯烃和轻质芳烃为目的产物的DHTMP工艺进行了模拟和优化,得到了优化的操作参数。采用优化的操作参数,即一段和二段提升管反应器出口温度分别为520℃和540℃,DHTMP工艺得到汽油和液化气产率之和超过83%。此外,DHTMP工艺的经济性良好,对于加工能力2.0 Mt/a装置,其财务净现值为2.16×10^(9)元,内部收益率为21.57%。碳排放分析结果表明,创造每百万元生产总值,DHTMP工艺排放二氧化碳70.08 t。
Enhancing the deep processing of naphthenic-base heavy oil has extremely important industrial and economic significance.Based on the Qinhuangdao naphthenic-base heavy oil,a novel heavy oil to petrochemicals process integrated with light cycle oil(LCO)deep hydrotreating and two-stage-riser for maximizing propylene(DHTMP)is carried out,simulated,and optimized.Based on the pilot test data,the DHTMP process for the production of low-carbon olefins and BTX was simulated and optimized,and the optimized operating parameters were obtained.Using the optimized operating parameters,i.e.the outlet temperatures of the first and second riser reactors are 520℃and 540℃respectively,and the total yield of gasoline and LPG obtained by DHTMP process exceeds 83%.Furthermore,the DHTMP process exhibits favorable performances from the economic level.The DHTMP process has better net present value of 2.16×10^(9) CNY,and internal rate of return of 21.56%for a unit with capacity of 2.0 Mt/a.The results of carbon emission analysis show that the DHTMP process emits 78.08 tons of carbon dioxide per million yuan of total output value.
作者
周鑫
闫昊
赵辉
刘熠斌
陈小博
杨朝合
Zhou Xin;Yan Hao;Zhao Hui;Liu Yibin;Chen Xiaobo;Yang Chaohe(State Key Laboratory of Heavy Oil Processing,China University of Petroleum(East China),Qingdao,Shandong 266580)
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2021年第10期170-175,共6页
Petroleum Processing and Petrochemicals
基金
国家自然科学基金项目(22078364,22108307,22108503)
中央高校基本科研业务费专项资金资助项目(20CX06095A和20CX06096A)。
关键词
环烷基减压蜡油
催化裂解
深度加氢
过程集成
流程模拟
优化设计
naphthenic-base vacuum gas oil
catalytic cracking
deep hydrogenation
process integration
process simulation
optimal design