一个词汇的翻译？ please refer to the attachment. one comments in my field (reaction engineering and heterogeneous catalysis), we call it (t=v/q) residence time (停留时间), rather than space time. it means the average time one molecule reside in the reactor or other equipment. the reciprocal of the residence time is called space velocity (空速). in heterogeneous catalysis, people define space velocity as the reciprocal of the residence time divided by the mass of catalysts used. residence time is a key concept. if you operate a reactor with a residence time that is much shorter than the intrinsic reaction time scale, your conversion is very close to zero. if you operate a reactor with a residence time that is much longer than the intrinsic reaction time scale, your conversion is very close to 100%. but in this case, your space-time yield is not the best.查看更多
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