Method for generating syngas from biomass including transfer of heat from thermal cracking to upstream syngas

摘要

Biomass is gasified to generate syngas. The syngas is subjected to thermal cracking. Heat from syngas exiting a thermal cracking stage is transferred to syngas entering the thermal cracking stage. Biomass gasification apparatus may include a thermal pathway connected to transfer heat from an outlet of a thermal cracking process to an inlet of the thermal cracking process. Energy efficiency is enhanced. Syngas may be used as fuel for engines or fuel cells, burned to yield heat, or processed into a fuel.

主权项

1. A method for producing syngas, the method comprising:
heating biomass; collecting raw syngas released from the biomass; subsequently heating the raw syngas; and, subjecting the heated raw syngas to thermal cracking, wherein heating the raw syngas comprises transferring heat from syngas that has been subjected to thermal cracking to the raw syngas thereby increasing a temperature of the raw syngas and, wherein transferring heat from the syngas that has been subjected to thermal cracking to the raw syngas comprises transferring heat from the syngas that has been subjected to thermal cracking to a heat exchange medium and transferring heat from the heat exchange medium to the raw syngas.