hourly space velocity

基本解釋

The selectivity of C8 was increased with raising of weight hourly space velocity, but the conversion of butene was reduced.
進料空速增大C8産物選擇性增大，但丁烯轉(zhuǎn)化率降低；
The impact of dry gas on FCC reaction becomes increasingly pronounced with lower reactor temperature and lower hourly space velocity, greater catalyst to oil ratio and longer reaction time.
而且在反應溫度和空速越低、劑油比越大、反應時間越長的條件下，催化裂化反應受乾氣比率的影響越明顯。
Reaction temperature, catalyst to oil ratio, weight hourly space velocity and feedstock nitrogen content affected the nitrogen content of spent catalyst and the nitrogen distribution in products.
反應溫度、催化劑與原料油的質(zhì)量比、空速、原料氮含量都影響待生催化劑的氮含量和氮在産物中的分佈。