公开(公告)号：US11634645B2

公开(公告)日：2023-04-25

申请号：US17350487

申请日：2021-06-17

Applicant: UPM-KYMMENE CORPORATION

Inventor： Pekka Jokela ,  Andrea Gutierrez ,  Teemu Lindberg ,  Bert Heesink ,  Sascha Kersten ,  Roel Westerhof

IPC: C10G1/06 ,  C10G1/00 ,  C10G1/02 ,  C10G3/00 ,  C10G51/02

Abstract: The present disclosure relates to a method for controlling product slate of hydrothermal liquefaction by adjusting pH of hydrothermal liquefaction product aqueous phase. The pH of the hydrothermal liquefaction product aqueous phase can be adjusted by heating during hydrothermal liquefaction (110) a mix (30) comprising lignocellulosic feedstock (10) together with acids, alkalis and/or buffers (20) added under aqueous conditions. The method typically comprises separating (120) aqueous phase (53) and oil phase (50), and optionally gas (51) and/or char (52), of the obtained hydrothermal liquefaction product (40). Preferably the separated aqueous phase (53) is recirculated to be mixed 100 with lignocellulosic feedstock (10).

公开(公告)号：US10240095B2

公开(公告)日：2019-03-26

申请号：US14395163

申请日：2013-04-17

Applicant: UPM-KYMMENE CORPORATION

Inventor： Jaakko Nousiainen ,  Arto Rissanen ,  Andrea Gutierrez ,  Teemu Lindberg ,  Heli Laumola ,  Pekka Knuuttila

IPC: C10G3/00 ,  C10G21/20 ,  C10G45/58 ,  C10G45/64 ,  C10L1/04 ,  C10L1/06 ,  C10L1/08 ,  C10L1/16 ,  C10G65/12 ,  C10G67/02 ,  C10G67/06

Abstract: A process for catalytically converting crude tall oil into hydrocarbons suitable as biofuel components. The crude tall oil is treated in a reactor system including a catalytically active guard bed phase and a catalytically active main reaction phase. At least one of the phases includes a catalyst bed with a combination of hydrodeoxygenating (HDO) and hydrodewaxing (HDW) catalysts. The process provides biofuel with acceptable ignition and cold flow properties.