天然气水合物开采耦合重整制氢系统的能效和经济性评价  

Energy efficiency and economic evaluation of coupled natural gas hydrate exploitation and reforming hydrogen production system

作　　者：江苇 王梦颖 邓春[1] 陈光进[1] JIANG Wei;WANG Mengying;DENG Chun;CHEN Guangjin(College of Chemical Engineering and Environment,State Key Laboratory of Heavy Oil Processing,China University of Petroleum-Beijing,Beijing 102249,China;SINOPEC Research Institute of Petroleum Processing Ltd.,Co.,Beijing 100083,China)

机构地区：[1]中国石油大学(北京)化学工程与环境学院,重质油全国重点实验室,北京102249 [2]中石化石油化工科学研究院有限公司,北京100083

出　　处：《低碳化学与化工》2024年第9期26-32,共7页Low-Carbon Chemistry and Chemical Engineering

基　　金：国家重大科研仪器研制项目(22127812);国家自然科学基金重点项目(21636009)。

摘　　要：为提高天然气水合物开采耦合重整制氢系统能效,对该系统进行了工艺设计及建模,并建立了能效评估和经济性分析模型。围绕重整过程中燃料供热或电重整的选择,电重整中是否集成海上风电,H_(2)分离过程中膜分离或醇胺法的选择,对比了不同技术方案下系统的㶲效比和年度总费用。结果表明,系统C重整单元采用电重整,未集成海上风电,分离单元采用膜分离,其㶲效比最高(2.25)。系统B重整单元采用燃料供热,分离单元采用膜分离,年度总费用最低(5803.91×10^(6) CNY/a)。系统F集成了海上风电,分离单元采用醇胺法,年度总费用最高(5862.09×10^(6) CNY/a),比经济性最好的系统B仅高约1.0%,但系统能效更高。这说明膜分离和海上风电应用于水合物开采平台,在能效和经济性方面都具有较大潜力。To improve the energy efficiency of a coupled natural gas hydrate exploitation and reforming hydrogen production system,process design and modeling were conducted,and models for energy efficiency assessment and economic analysis were established.Focusing on the selection between fuel heating or electric reforming in the reforming process,whether offshore wind power is integrated in electric reforming,and the selection between membrane separation or amine scrubbing in H_(2) separation,the exergy efficiency ratio and annual total cost of different technical schemes were compared.The results show that System C,with electric reforming without offshore wind power integration and membrane separation,has the highest exergy efficiency ratio(2.25).System B,with fuel heating reforming and membrane separation,has the lowest annual total cost(5803.91 × 10^(6) CNY/a).System F,which integrates offshore wind power and uses amine scrubbing for separation,has the highest annual total cost(5862.09 × 10^(6) CNY/a),only about 1.0% higher than the most economically efficient System B,but with higher energy efficiency.This indicates that the application of membrane separation and offshore wind power on hydrate exploitation platforms has significant potential in both energy efficiency and economy.

关 键 词：天然气水合物开采 重整制氢 工艺设计 能效 经济性 

分 类 号：TQ021.8[化学工程]