Open AccessAutothermal CaO Looping Biomass Gasification for Renewable Syngas Production
Author(s) -
Hongman Sun,
Chunfei Wu
Publication year - 2019
Publication title -
environmental science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.851
H-Index - 397
eISSN - 1520-5851
pISSN - 0013-936X
DOI - 10.1021/acs.est.9b01527
Subject(s) - syngas , wood gas generator , biomass (ecology) , renewable energy , fossil fuel , environmental science , heat of combustion , waste management , flue gas , syngas to gasoline plus , combustion , coal , chemistry , steam reforming , hydrogen production , engineering , catalysis , biochemistry , oceanography , electrical engineering , organic chemistry , geology
Biomass gasification is regarded as a promising alternative to fossil fuels for producing sustainable and clean value-added products. However, the challenges including low energy efficiency, CO 2 emission, and ash agglomeration significantly delay the deployment of the technology. Herein, we first proposed a novel autothermal CaO looping biomass gasification (Auto-CaL-Gas) technology, in which CaO-based materials react with flue gas with a high concentration of CO 2 (>30 vol %) to produce heat inside the gasifier, simultaneously providing energy for low-temperature biomass gasification using CO 2 as a gasification agent. Upon use of this concept the syngas production exhibited a significant increase from 0.21 kg/h to 0.90 kg/h in the Aspen simulation results and more than 3-fold improvement in the experimental results.
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