Solar-driven pyrolysis and gasification of low-grade carbonaceous materials

Enthalten in
International journal of hydrogen energy 
Volume
42
Issue
19
Start Page
905
End Page
906
Citation
International Journal of Hydrogen Energy 19 (42): 13598-13606 (2017)
Contribution to Conference
21st World Hydrogen Energy Conference 2016, WHEC 2016 
Publisher DOI
10.1016/j.ijhydene.2017.02.026
Scopus ID
2-s2.0-85013792282
Hydrogen Energy Publications LLC Three low-grade carbonaceous materials from biomass (Scenedesmus algae and wheat straw) and waste treatment (sewage sludge) have been selected as feedstock for solar-driven thermochemical processes. Solar-driven pyrolysis and gasification measurements were conducted directly irradiating the samples in a 7 kW e high flux solar simulator and the released gases H 2 , CO, CO 2 and CH 4 and the sample temperature were continuously monitored. Solar-driven experiments showed that H 2 and CO evolved as important product gases demonstrating the high quality of syngas production for the three feedstocks. Straw is the more suitable feedstock for solar-driven processes due to the high gas production yields. Comparing the solar-driven experiments, gasification generates higher percentage of syngas (mix of CO and H 2 ) respect to total gas produced (sum of H 2 , CO, CO 2 and CH 4 ) than pyrolysis. Thus, solar-driven gasification generates better quality of syngas production than pyrolysis.
Schlagworte
solar-driven
pyrolysis
gasification
carbonaceous materials
high flux solar simulator
syngas production
DDC Class
600: Technik