作　　者： ; ; ;

机构地区： 南京航空航天大学能源与动力学院

出　　处： 《热能动力工程》 2006年第5期521-524,共4页

摘　　要： 采用PC-SAFT模型研究超临界水葡萄糖气化制氢系统中气液分离器处气液平衡特点,与实验数据对比表明,理论推算结果合理。在相同给料情况下,随着压力升高,气液平衡体系中的CO、H2和CH4气相份额是逐渐降低的,而CO2、H2O的气相份额是逐渐增加的,所以低压分离有助于提纯可燃气相产物。实验结果表明,操作压力对葡萄糖气化产物的影响不大,然而综合压力对溶解度的影响,可以得出高压事实上是有利于葡萄糖的气化。 By using a PC-SAFT(perturbed chain statistical associating fluid theory) model, a study was conducted of the specific features of vapor-liquid equilibrium located at the gas-liquid separator of a hydrogen preparation system involving glucose gasification in supercritical water.A comparison with the experimental data shows that the theoretical calculation results are rational.Under a same material-feeding condition,CO,H_2 and CH_4 gas phase share in the vapor-liquid equilibrium system will gradually decrease with a rise in pressure.However,CO_2 and H_2O gas phase share will gradually increase.Therefore,a low-pressure separation will contribute to a purer combustible gas-phase product.The experimental results show that the operating pressure has little influence on the glucose-gasified product.However,in summing up the effect of pressure on solubility,one can conclude that a high pressure can virtually be favorable to the gasification of glucose.

关 键 词： 多元相平衡 状态方程 葡萄糖 超临界制氢

领　　域： [动力工程及工程热物理]