经过供氢催化水热裂解反应，稠油中沥青质的稳定性下降。
After hydrothermal catalytic pyrolysis reaction of heavy oil, the stability of asphaltene became worse.
通过超稠油水热裂解反应前后黏度、沥青质、硫质量分数等性质的变化，研究了超稠油进行水热裂解的主要影响因素及规律。
The main factors and rules in aqua-thermolysis reaction were analyzed through comparison of viscosity, asphaltene and sulfur content before and after super heavy oil upgrading.
计算结果表明：硫醚水热裂解反应所需的水蒸汽量随硫醚相对分子质量的增大而增多。
The results indicate that water needed by full aquathermolysis reaction increases with molecular weight of thioether.
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