Skip to content

Hydrogen‐Rich Gas Production from Two‐Stage Catalytic Pyrolysis of Pine Sawdust with Calcined Dolomite


The potential of catalytic pyrolysis of biomass for hydrogen and bio‐oil production has drawn great attention due to the concern of clean energy utilization and decarbonization. In this paper, the catalytic pyrolysis of pine sawdust with calcined dolomite was carried out in a novel moving bed reactor with a two‐stage screw feeder. The effects of pyrolysis temperature (700–900 °C) and catalytic temperature (500–800 °C) on pyrolysis performance were investigated in product distribution, gas composition, and gas properties. The results showed that with the temperature increased, pyrolysis gas yield in‐ creased, but the yield of solid and liquid products decreased. With the increase in temperature, the CO and H2 content increased significantly, while the CO2 and CH4 decreased correspondingly. The calcined dolomite can remove the tar by 44% and increased syngas yield by 52.9%. With the increasing catalytic temperature, the catalytic effect of calcined dolomite was also enhanced.

Funding source: National Natural Science Foundation of China (Grant No. 51634007), The Key Scientific and Technological Innovation Program of Shandong (Grant No. 2019JZZY020326), and Natural Science Basic Research Program of Shaanxi (Program NO. 2021JLM-10).
Related subjects: Production & Supply Chain

Article metrics loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error