A hydrocarbon wax product from a HCS slurry comprising liquid synthesis product and catalyst particles is purified by circulating the slurry from a synthesis zone with a first temperature through a treatment zone with a second temperature in which a hydrogen-containing treatment gas contacts the slurry. The gas treatment removes impurities from the hydrocarbon wax product and also removes catalyst de-activating species which may be present in the slurry. Purified wax product is separated and removed from the treated slurry via wax withdrawal means. This avoids or minimizes the need for further treating the wax product. Remaining treated slurry may be returned to the synthesis zone.
申请公布号
CA2451651(C)
申请公布日期
2011.07.12
申请号
CA20022451651
申请日期
2002.06.14
申请人
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
发明人
WITTENBRINK, ROBERT JAY;BURNS, LOUIS FRANCIS;HOWSMON, GREGG JOHNSTON;SAY, GEOFFREY RHYS;MAULDIN, CHARLES HARRISON