DEHAZING A LUBES PRODUCT BY INTEGRATING AN AIR SEPARATION UNIT WITH THE DEHAZING PROCESS

摘要

A cryogenic air separation unit (ASU) (12) is integrated into a lube oil dehazing process whereby waste nitrogen (16) from 'the ASU is used to cool a lube oil base stock to promote the agglomeration (17) and separation (21) of haze-forming constituents in the base stock. Advantageously, the ASU may be part of a gas-to-liquid plant.