Acetylene from the Co-pyrolysis of Biomass and Waste Tires or Coal in the H₂/Ar Plasma

Abstract

Acetylene from carbon-containing materials via plasma pyrolysis is not only simple but also environmental friendly. In this article, the acetylene produced from co-pyrolyzing biomass with waste tire or coal under the conditions of H₂/Ar DC arc plasma jet was investigated. The experimental results showed that the co-pyrolysis of mixture with biomass and waste tire or coal can improve largely the acetylene relative volume fraction (RVF) in gaseous products and the corresponding yield of acetylene. The change trends for the acetylene yield of plasma pyrolysis from mixture with raw sample properties were the same as relevant RVF. But the yield change trend with feeding rate is different from its RVF. The effects of the feeding rate of raw materials and the electric current of plasmatron on acetylene formation are also discussed.

Keywords:

• biomass
• coal
• co-pyrolysis
• plasma
• waste tire

Acknowledgments

The authors gratefully acknowledge the support of National Basic Research Program of China (2005CB221202), Shanxi Province Program for Tackling Key Problems of Science and Technology (051161), and Shanxi Province Natural Science Foundation (20031023).