发明授权
US4283272A Manufacture of hydrocracked low pour lubricating oils 失效
加氢裂化低润滑油的制造

Manufacture of hydrocracked low pour lubricating oils
摘要:
Hydrocracked, low pour lubricating oils of good stability are manufactured by passing a suitable hydrocarbon feed and hydrogen sequentially through a hydrocracking zone, a catalytic dewaxing zone, and a hydrotreating zone, all at high pressure and in that order, with purification of the hydrogen gas prior to passage to the dewaxing zone. By maintaining all zones at high pressure, the efficiency of the process is augmented.
信息查询
0/0