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利用高压釜反应装置，在水介质下对繁峙褐煤进行了低演化阶段的热压模拟实验，考察了碳酸钠盐水介质对热解产物生成过程的影响，探讨了产物的生成特征及动力学。盐水介质的存在，对褐煤热解生烃过程具有一定的催化作用，提高了气态产物和热解沥青的收率，而对热解沥青的进一步热解生油过程几乎没有影响。动力学计算结果表明，在１００℃的地质温度下，碳酸钠介质的存在，可使气态产物和热解沥青的生成速率提高５０％～１００％．碳酸钠碱性水介质的催化作用，可借助于溶剂效应和电子诱导效应理论进行初步的解释。
The autoclave reactor was used to simulate the fossil lignite in low-evolution stage under aqueous medium. The effects of sodium carbonate brine medium on the formation of pyrolysis products were investigated. The formation characteristics and kinetics of the products were also discussed. The existence of salt water medium has a certain catalytic effect on lignite pyrolysis and hydrocarbon generation, and increases the yield of gaseous products and pyrolysis asphalt, but has little effect on the further pyrolysis and oil production of pyrolysis asphalt. Kinetic calculations show that the presence of sodium carbonate at a geological temperature of 100 ℃ can increase the formation rate of gaseous products and pyrolysisal bitumen by 50-100%. The basic sodium carbonate aqueous medium catalysis can be explained by means of solvent effect and electron-induced effect theory.