论文部分内容阅读
在实验室研究了聚丙烯腈基活性碳纤维（ Ｎ Ａ Ｃ Ｆ）的制备条件，如活化温度、活化时间对静态吸附脱除汽油中硫醇的影响。结果表明，活化温度在 ８００ ℃以上和活化时间在９０ ｍ ｉｎ 以上制得的 Ｎ Ａ Ｃ Ｆ 可直接用于吸附催化裂化汽油中的硫醇，使其硫醇硫含量降到 １０ μｇ／ｇ 以下。负载钴盐后的 Ｎ Ａ Ｃ Ｆ也可脱除汽油中的硫醇，与不负载钴盐相比，对汽油脱硫醇的效果稍有增大。在液固比为 ４ ０００（ｍ Ｌ∶ｇ）的条件下，可使汽油中的硫醇硫含量由９１．７ μｇ／ｇ 降到４．５ μｇ／ｇ。
In the laboratory, the preparation conditions of polyacrylonitrile-based activated carbon fiber (N A C F), such as activation temperature and activation time, were investigated. The results show that N A C F, which has an activation temperature above 800 ℃ and an activation time above 90 mins, can be used directly to adsorb mercaptans in FCC gasoline to reduce its mercaptan sulfur content below 10 μg / g . The NACF loaded with cobalt salts can also remove mercaptans from gasoline, slightly increasing the effect on gasoline mercaptan when compared to cobalt salts. Under liquid-solid ratio of 4 000 (m L: g), the mercaptan sulfur content in gasoline can be reduced from 91.7 μg / g to 4.5 μg / g.