weight hourly space velocity

英 [weɪt ˈaʊəli speɪs vəˈlɒsəti]

美 [weɪt ˈaʊərli speɪs vəˈlɑːsəti]

网络空间流速; 重时空速; 重量时空速度; 空速

The selectivity of C8 was increased with raising of weight hourly space velocity, but the conversion of butene was reduced.
进料空速增大C8产物选择性增大，但丁烯转化率降低；
With the decrease of weight hourly space velocity ( WHSV), both the phenol conversion and the selectivity of 2, 6-xylenol increase, while the selectivity of o-cresol decreases gradually, suggesting that 2, 6-xylenol is the consecutive product obtained from the alkylation of o-cresol.
随着质量空速的降低，苯酚的转化率和2,6-二甲酚的选择性逐渐增加，邻甲酚的选择性逐渐降低，这表明2,6-二甲酚是邻甲酚进行连续反应的结果。
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.
反应温度、催化剂与原料油的质量比、空速、原料氮含量都影响待生催化剂的氮含量和氮在产物中的分布。