The results showed that It was feasible to sulfurize hydrotreating catalyst by acidity gas . The bromine number was still less than 0.5gBr_2/100g when the concentration of CO_2 was up to 1.5 times concentration of H2S .

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As temperature and pressure sharply drop oxidization speed multiplies and the acidity or alkalinity changes the hydrides decompose hydrolyze oxidize sulfurize settle down and enrich into various mineral deposits .

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