Patent ID: 11952277
Assignee: RWE GENERATION NL B.V.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  Y | IPC C

Claim 0:
1. A method for processing solid recovered fuel pellets (117), comprising the following steps:
a) torrefaction of the pellets (117) at a torrefaction temperature of 250 to 300° C. generating charred pellets (201) and torrefaction gas (202);
b) milling the charred pellets (201) in a first milling step to coarsely milled charred pellets (207);
c) removing metal residues (206) from the coarsely milled charred pellets (207);
d) milling the coarsely charred pellets (207) to finely milled charred pellets (209);
e) gasifying the finely milled charred pellets (209) to raw syngas (301) in an entrained flow gasifying process;
f) performing CO shift reactions to the raw syngas (301) creating shifted syngas (501);
g) removing carbon dioxide and hydrogen sulfide from the shifted syngas (501) creating a syngas; and
h) generating a product gas stream (601) rich in hydrogen by purifying the syngas.