Invention Grant
- Patent Title: Two-stage process with thermal conversion
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Application No.: US18083650Application Date: 2022-12-19
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Publication No.: US12054674B2Publication Date: 2024-08-06
- Inventor: Andrea Gutierrez , Roel Westerhof , Sascha Kersten , Bert Heesink , Pekka Jokela
- Applicant: UPM-KYMMENE CORPORATION
- Applicant Address: FI Helsinki
- Assignee: UPM-KYMMENE CORPORATION
- Current Assignee: UPM-KYMMENE CORPORATION
- Current Assignee Address: FI Helsinki
- Agency: CANTOR COLBURN LLP
- Priority: FI 216332 2021.12.23
- Main IPC: C10G1/02
- IPC: C10G1/02 ; C10G1/00 ; C10G1/04 ; C10L1/08

Abstract:
The disclosure relates to a process for converting lignin (10) to renewable product (80), wherein the process comprises the following steps; mixing (100) lignin (10) with aqueous solution (20) to obtain a mixture (30); heating (110) the mixture (30) of step (a) to a temperature between 290 and 350° C., under a pressure from 70 to 165 bar, to obtain a first product mix (40); separating aqueous phase (53) and oil phase (50), and optionally gas (51) and solids (52), of the first product mix (40) of step (b); and heating (130) the oil phase (50) of step (c) and solvent (60) to obtain a second product mix (70). The second product mix (70) can be used as such, it can be directed to separation (140) or it can be upgraded. The obtained liquid renewable product is suitable as chemicals, fuel, fuel components or feedstock for fuel production.
Public/Granted literature
- US20230203381A1 TWO-STAGE PROCESS WITH THERMAL CONVERSION Public/Granted day:2023-06-29
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