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在１立升的高压机械搅拌釜中，采用气体间歇吸收技术，在８０～１６０℃，０．５～５ＭＰａ的范围内，测定了氢气和一氧化碳在混二甲苯中的溶解度。氢气和一氧化碳的溶解度随着温度和压力的增加而变大，且在相同的温度和压力下，一氧化碳的溶解度大于氢气的溶解度。与它们在间二甲苯中的溶解度相比，在混二甲苯中的溶解度是较小的．此外，使用正规溶液理论的Ｐｒａｕｓｎｉｔｚ－Ｓｈａｉｒ方法对它们的溶解度进行了估算。可以看出，一氧化碳在二甲苯中的溶解度的估算值与实验结果较相符。氢气由于临界温度较低，没有合适的估算式，故用实验回归的公式结合Ｐｒａｕｓｎｉｔｚ－Ｓｈａｉｒ方法中的其它公式进行估算，估算值与实验值大体相符。
In a 1 liter high pressure mechanical stirred tank, the gas intermittent absorption technology was used to measure the solubility of hydrogen and carbon monoxide in mixed xylene at 80 ~ 160 ℃ and 0.5 ~ 5MPa. Hydrogen and carbon monoxide solubility increases with increasing temperature and pressure, and at the same temperature and pressure, the solubility of carbon monoxide is greater than the solubility of hydrogen. Compared to their solubility in meta-xylene, the solubility in mixed xylene is smaller. In addition, their solubility was estimated using the Prausnitz-Shair method of normal solution theory. It can be seen that the estimated solubility of carbon monoxide in xylene is in good agreement with the experimental results. Since hydrogen has a low critical temperature and no suitable estimation formula, it is estimated by using the experimental regression formula combined with the other formulas in the Prausnitz-Shair method. The estimated value agrees with the experimental value.