公开(公告)号：US11753359B2

公开(公告)日：2023-09-12

申请号：US17608899

申请日：2020-05-19

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Christian Okolo ,  Venkata Malleswara Rao Tadiboyina ,  Kuangyao Brian Peng ,  Mubarik Ali Bashir

IPC: C07C29/78 ,  B01D5/00 ,  C07C29/151 ,  C07C29/86 ,  C07C31/04

CPC classification number: C07C29/78 ,  B01D5/0072 ,  C07C29/1516 ,  C07C29/86 ,  C07C31/04

Abstract: Systems and methods for processing crude methanol are disclosed. A crude methanol stream, comprising methanol and paraffin wax, is produced from syngas (carbon monoxide, carbon dioxide, and hydrogen). The crude methanol stream is cooled to form a partially condensed crude methanol stream, which is further separated in a vapor-liquid separator to form a liquid stream and a gas stream. The liquid stream is further cooled in a dewaxing unit to remove paraffin wax. The dewaxing unit includes two or more cooling units arranged in parallel such that when one of the cooling units is offline for cleaning, the methanol system does not need to be shut down.