Kinetics study on biomass pyrolysis for fuel gas production

Two of the methods for converting biomass to fuel are hydrothermal carbonization (HTC) and anaerobic digestion (AD). This study is aimed at designing and analyzing two scenarios for bioenergy production from undervalued biomass (sawdust). In one of the scenarios (direct combustion or DC), raw biomass is burned in a combustor to provide the heat that is required by the Rankine cycle to generate electricity. In the other scenario (HTC-AD), the raw biomass first undergoes HTC treatment. While the solid product (hydrochar) is used to produce power by a Rankine cycle, the liquid by-product undergoes an AD process. This results in fuel gas production and it can be used in a Brayton cycle to generate more power. Energy and mass balance analysis of both scenarios were developed for each unit process by using Engineering Equation Solver (EES). The required data were obtained experimentally or from the literature. The performances of the proposed systems were evaluated, and a sensitivity analysis was presented to help in finding the best operational conditions.

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ANN modeling of fuel gas production from low-grade residual oil

Petroleum Science and Technology ◽

10.1080/10916466.2018.1542442 ◽

2019 ◽

Vol 37 (3) ◽

pp. 305-309 ◽

Cited By ~ 1

Author(s):

Yaya Wang ◽

Wei Gao

Keyword(s):

Gas Production ◽

Low Grade ◽

Residual Oil ◽

Fuel Gas ◽

Ann Modeling

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Composting of municipal solid waste and sewage sludge: Potential for fuel gas production in a developing country

Resources Conservation and Recycling ◽

10.1016/0921-3449(95)00060-7 ◽

1996 ◽

Vol 16 (1-4) ◽

pp. 265-279 ◽

Cited By ~ 7

Author(s):

Don Augenstein ◽

Donald L. Wise ◽

Nghiem Xuan Dat ◽

Nguyen Duc Khien

Keyword(s):

Sewage Sludge ◽

Municipal Solid Waste ◽

Solid Waste ◽

Developing Country ◽

Gas Production ◽

Fuel Gas

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Influence of Metal Ions on Biomass Pyrolysis Process

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.278-280.440 ◽

2013 ◽

Vol 278-280 ◽

pp. 440-443

Author(s):

Rui Rui Xiao ◽

Wei Yang ◽

Guang Suo Yu

Keyword(s):

Metal Ions ◽

Fixed Bed ◽

Earth Metal ◽

Gas Production ◽

Fixed Bed Reactor ◽

Recombination Reaction ◽

Pyrolysis Process ◽

Biomass Pyrolysis ◽

Large Molecular Weight ◽

Alkaline Earth Metal Ions

In order to understand the behavior of biomass pyrolysis, a series of pretreatment biomass were prepared with acid-washing and metal impregnated methods. The effects of metal ions on the yields of tar, char and gas from straw pyrolysis were analyzed in our lab scale fixed-bed reactor. Alkali metal and alkaline earth metal ions affect biomass pyrolysis process and the products heavily. The decreasing metal ions result in declining yield of semi-char and increasing yields of tar and gas. Meanwhile, the pyrolysis temperature corresponding maxium yield of tar increases. There exist marked catalytic effect of potassium, calcium and magnesium cations on the cracking of large molecular weight parts of tar and semi-char formation via recombination reaction of tar. As cause a higher production of char while a decrease of tar and gas production.

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