CAJ | 학술논문

目前 CO2的分离方式主要局限在常压条件下，在高压条件下分离 CO2的研究鲜有报道。本文为了解决这一问题，针对煤在超临界水中气化过程压力高的特点，构建了高压水吸收法分离 CO2系统，建立了高压多组分气液相平衡的能量分析模型和分析模型；并对 CO2的分离过程进行分析，获得了高压吸收器中压力对各种气体产物摩尔分数和液相中气体吸收率的影响规律；针对高压水吸收法分离 CO2的流程，建立了 CO2分离过程中的能量分析模型和分析模型，得到了高压吸收器中压力发生变化时，CO2分离过程的能量效率、效率以及CO2分离能耗的变化规律，为超临界水中煤气化制氢新技术中分离器的设计提供了依据。
목전 CO2적분리방식주요국한재상압조건하，재고압조건하분리 CO2적연구선유보도。본문위료해결저일문제，침대매재초림계수중기화과정압력고적특점，구건료고압수흡수법분리 CO2계통，건립료고압다조분기액상평형적능량분석모형화분석모형；병대 CO2적분리과정진행분석，획득료고압흡수기중압력대각충기체산물마이분수화액상중기체흡수솔적영향규률；침대고압수흡수법분리 CO2적류정，건립료 CO2분리과정중적능량분석모형화분석모형，득도료고압흡수기중압력발생변화시，CO2분리과정적능량효솔、효솔이급CO2분리능모적변화규률，위초림계수중매기화제경신기술중분리기적설계제공료의거。
Separation of CO2 is mainly carried out under atmospheric pressure and there are few research reports on the methods under high pressure. A system of separating CO2 by high pressure water and the energy and exergy analysis models of high pressure multicomponent vapor-liquid equilibrium were built according to the characteristics of coal gasification in supercritical water under high pressure. The influence of pressure on gas mole fraction and gas absorption in liquid phase in high-pressure absorber was obtained. According to the process of CO2 separation under high pressure,the changes of energy efficiency,exergy efficiency and energy consumption of CO2 separation during pressure change of high-pressure absorber were obtained,which provided the basis for designing separators in hydrogen production by coal gasification in supercritical water.