公开(公告)号：US20240101918A1

公开(公告)日：2024-03-28

申请号：US18368960

申请日：2023-09-15

Applicant: Meva Energy AB

Inventor： Mattias KINDSTRAND ,  Niklas STRANDBERG

IPC: C10L5/40 ,  C10J3/00

CPC classification number: C10L5/40 ,  C10J3/007 ,  C10L2200/0469 ,  C10L2290/02 ,  C10L2290/04 ,  C10L2290/06 ,  C10L2290/50

Abstract: The present inventive concept relates to a system for production and conditioning of high-quality biochar. The system comprises a gasification reactor adapted to transform biomass to syngas and biochar by a first thermochemical conversion and a biochar purification unit adapted to subject the biochar to a second thermochemical conversion and thereby prolonging conversion residence time. A first part of the biochar purification unit comprises a biochar inlet fluidly connected to the gasification reactor and a second part of the biochar purification unit, arranged downstream from the first part, comprises an inert gas inlet for purging the biochar within the biochar purification unit.

公开(公告)号：US20240254396A1

公开(公告)日：2024-08-01

申请号：US18421706

申请日：2024-01-24

Applicant: Meva Energy AB

Inventor： Mattias KINDSTRAND

IPC: C10C1/18 ,  B01D11/04 ,  B01D47/00

CPC classification number: C10C1/18 ,  B01D11/0488 ,  B01D11/0492 ,  B01D47/00

Abstract: The present invention relates to a method for purifying a tar containing gas stream. The method comprises the steps of:



a) contacting a tar containing gas stream with a washing liquid in a washing unit to obtain a tar containing washing liquid and a purified gas stream;
b) adding an extractant to the tar containing washing liquid to obtain an extraction liquid comprising a tar containing extractant and a regenerated washing liquid;
c) cooling the extraction liquid;
d) after cooling, separating the tar containing extractant from the regenerated washing liquid, and
e) recirculating the regenerated washing liquid to the washing unit.