Characteristics of Coal and Pine Sawdust Co-carbonization

All energy scenarios show a shift toward an increased percentage of renewable energy sources, including biomass. In this study, pine sawdust (PSD) was added to coals to make coke used for blast furnaces. The influences of PSD additive on coke quality, tar composition, and non-condensable gas components were evaluated during coal/PSD co-carbonization. The experimental results indicated that the addition of 5% PSD into coals did not have an evident effect on coke qualities, such as abrasion index (M10), fragmentation index (M40), coke reactivity index (CRI), and coke strength after reaction with CO2 (CSR). It was also observed that the tar and coke gas yields were remarkably increased when the mass fraction of PSD was increased from 0 to 10%. Moreover, the addition of PSD favors producing low-molecular-weight compounds and improving the quality of liquid tar.

[1]  Anthony Dufour,et al.  The Effect of Biomass on Fluidity Development in Coking Blends Using High-Temperature SAOS Rheometry , 2012 .

[2]  X. Gómez,et al.  Co-firing of coal and manure biomass: a TG-MS approach. , 2011, Bioresource technology.

[3]  J. T. Price,et al.  Possible CO2 mitigation via addition of charcoal to coking coal blends , 2009 .

[4]  Jae Goo Lee,et al.  Co-pyrolysis characteristics of sawdust and coal blend in TGA and a fixed bed reactor. , 2010, Bioresource technology.

[5]  Jiuju Cai,et al.  Disposal of Waste Plastics With Traditional Coking Process , 2006 .

[6]  Bing Zhu,et al.  CO2 emissions and reduction potential in China's chemical industry , 2010 .

[7]  Ramon Alvarez,et al.  Biomass derived products as modifiers of the rheological properties of coking coals , 2012 .

[8]  Wei Zhao,et al.  Coal chemical industry and its sustainable development in China , 2010 .

[9]  Dongxiao Niu,et al.  CO2 emissions and economic development: China's 12th five-year plan , 2012 .

[10]  Ramon Alvarez,et al.  Influence of biomass on metallurgical coke quality , 2014 .

[11]  J. A. Menéndez,et al.  An overview of novel technologies to valorise coke oven gas surplus , 2013 .

[12]  Ramon Alvarez,et al.  Effect of the addition of waste sawdust on thermoplastic properties of a coal , 2013 .

[13]  Tetsuya Nagasaka,et al.  Carbonization Behaviour of Woody Biomass and Resulting Metallurgical Coke Properties , 2008 .

[14]  B. Leckner,et al.  Influence of phosphorus on sulphur capture during co-firing of sewage sludge with wood or bark in a fluidised bed , 2006 .

[15]  Li-gang Wei,et al.  Effects of feedstock on co-pyrolysis of biomass and coal in a free-fall reactor , 2011 .

[16]  Yu Lei,et al.  China's coke industry: Recent policies, technology shift, and implication for energy and the environment , 2012 .

[17]  V. Sahajwalla,et al.  Degradation Behaviour of a High CSR Coke in an Experimental Blast Furnace: Effect of Carbon Structure and Alkali Reactions , 2005 .

[18]  Kunio Yoshikawa,et al.  Recent progresses in catalytic tar elimination during biomass gasification or pyrolysis—A review , 2013 .