Dairy Biomass-Wyoming Coal Blends Fixed Gasification Using Air-Steam for Partial Oxidation

Journal Article · Sun Jan 01 00:00:00 EST 2012 · Journal of Combustion

DOI:https://doi.org/10.1155/2012/495894· OSTI ID:1280204

Gordillo, Gerardo ^[1]; Annamalai, Kalyan ^[2]

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1. Department of Mechanical Engineering, University of the Andes, Carrera 1 Este No. 19A-40, Office ML 652, Bogotá, Colombia
2. Department of Mechanical Engineering, Texas A&M University, 307 Mechanical Engineering Office Building, College Station, TX 77843, USA

Concentrated animal feeding operations such as dairies produce a large amount of manure, termed as dairy biomass (DB), which could serve as renewable feedstock for thermal gasification. DB is a low-quality fuel compared to fossil fuels, and hence the product gases have lower heat content; however, the quality of gases can be improved by blending with coals. This paper deals with air-steam fixed-bed counterflow gasification of dairy biomass-Wyoming coal blend (DBWC). The effects of equivalence ratio ( $1.6<\Phi <6.4$ ) and steam-to-fuel ratio ( $0.4<S:F<0.8$ ) on peak temperatures, gas composition, gross heating value of the products, and energy recovery are presented. According to experimental results, increasing Φ and ( $S:F$ ) ratios decreases the peak temperature and increases the H ₂ and CO ₂ production, while CO production decreases. On the other hand, the concentrations of CH ₄ and C ₂ H ₆ were lower compared to those of other gases and almost not affected by Φ.

• Sponsoring Organization: USDOE
• OSTI ID: 1280204
• Journal Information: Journal of Combustion, Journal Name: Journal of Combustion Vol. 2012; ISSN 2090-1968
• Publisher: Hindawi Publishing Corporation
• Country of Publication: Egypt
• Language: English