| 单词 | catalyst-to-oil ratio | 
| 释义 | catalyst-to-oil ratio in the Oil and Gas Industry (kætəlɪst tu ɔɪl reɪʃoʊ) Word forms: (regular plural) catalyst-to-oil ratios  noun (Extractive engineering:  Refinery processes)  The  catalyst-to-oil ratio is the amount of a catalyst relative to the amount of oil, which with temperature affects the yield of a process.  The mass of catalyst fed to the reactor per unit mass of gas oil injected is usuallyreferred to as the catalyst-to-oil ratio.  The catalyst-to-oil ratio was 2-0 to 6-0 volumes of catalyst per hour per volume of oil per hour.  The catalyst-to-oil ratio is the amount of a catalyst relative to the amount of oil, which with temperatureaffects the yield of a process. | 
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