直接转化法Direct conversion使H2S直接转化为元素硫。它主要用于低含硫气体的净化。其中最为成功的是蒽醌法(streford法)和萘醌法。此外还有改良砷碱法(G-V法)H2S is directly converted to elemental sulfur. It is mainly used for the purification of low-sulfur gases. The most successful methods are the anthraquinone method (streford method) and naphquinone method. There is also the modified arsenic-base process (g-v process).