公开(公告)号：US12043957B2

公开(公告)日：2024-07-23

申请号：US17637497

申请日：2020-08-27

Applicant: Huntsman International LLC

Inventor： Johan Martens ,  Sambhu Radhakrishnan ,  Loes Verheyden ,  Arend Jan Zeeuw ,  Bart De Waele ,  Robert Henry Carr ,  Nathalie Meyer

IPC: D21C11/00 ,  B01J21/12 ,  B01J35/66 ,  C10G1/08 ,  D21C11/06 ,  D21C11/10 ,  D21C11/12

CPC classification number: D21C11/0007 ,  B01J21/12 ,  B01J35/66 ,  C10G1/086 ,  D21C11/06 ,  D21C11/10 ,  D21C11/125 ,  C10G2300/1014

Abstract: The present invention relates to a process for manufacturing an upgraded bio-oil derived from black liquor, comprising the following steps: —Providing black liquor, which comes from the pulp and paper manufacturing industry; —Subjecting black liquor to a pyrolysis treatment with formation of a pyrolyzed black liquor gas and a solid mass, which comprises char and salts; —Catalytic conversion of said pyrolyzed black liquor gas by contacting at least part of the latter with a bi-metallic modified zeolite catalyst with formation of the upgraded bio-oil, which comprises benzene, toluene, xylene (BTX), naphthalene and non-BTX products.