CAJ | 학술논문

天然气经过脱碳处理后剩余的CO2或电厂回收的CO2中还含有饱和水，为了阻止水合物的形成，防止两相流的出现和CO2溶于水后对管道、设备的腐蚀，在管输之前需要对主体为CO2的混合气体进行脱水处理。运用Aspen HYSYS模拟TEG脱除CO2中水分的过程。在一定气体流量下，通过改变吸收塔工作压力、温度、塔板数、再生塔的重沸器温度和 T EG循环量，对影响CO2脱水的因素进行了研究。结果表明，在处理酸性湿气气体流量为46．64×104 m3／d（20℃，101．325 kPa）的条件下，采用吸收塔工作压力为2000 kPa ，工作温度为常温，吸收塔塔板数为8～10块，再生塔重沸器温度为200℃，T EG循环流率为1．1 kg／kg （脱除水量）的工艺优化参数，可使处理后的混合气体含水量满足管输要求。
천연기경과탈탄처리후잉여적CO2혹전엄회수적CO2중환함유포화수，위료조지수합물적형성，방지량상류적출현화CO2용우수후대관도、설비적부식，재관수지전수요대주체위CO2적혼합기체진행탈수처리。운용Aspen HYSYS모의TEG탈제CO2중수분적과정。재일정기체류량하，통과개변흡수탑공작압력、온도、탑판수、재생탑적중비기온도화 T EG순배량，대영향CO2탈수적인소진행료연구。결과표명，재처리산성습기기체류량위46．64×104 m3／d（20℃，101．325 kPa）적조건하，채용흡수탑공작압력위2000 kPa ，공작온도위상온，흡수탑탑판수위8～10괴，재생탑중비기온도위200℃，T EG순배류솔위1．1 kg／kg （탈제수량）적공예우화삼수，가사처리후적혼합기체함수량만족관수요구。
CO2 removed from natural gas decarburization unit or recovered from power plant still contain saturated water .In order to prevent the formation of hydrates ,the emergence of two‐phase flow and the corrosion of pipeline and equipment when CO2 dissolves in water ,gas de‐hydration process is necessary before pipeline transportation .Herein Aspen HYSYS was used to simulate the dehydration process from CO 2 ,and influence factors of CO2 dehydration were inves‐tigated .Under a certain feed rate ,through changing the pressure ,temperature ,number of tray plate in absorber ,reboiler temperature and circulation rate of TEG the computed results gave op‐timal process parameters .The results showed that with the feed gas rate of 466 .4 × 103 m3/d , the working pressure of 2 000 kPa and room temperature for absorber ,the tray number in ab‐sorber was 8‐10 ,reboiler temperature was 200 ℃ ,and the circulation rate of TEG was 1 .1 kg/kg ( water removed) ,the water content in the mixed gas could meet pipeline requirements .