Stakeholder analysis of a centralized biogas plant in China — The case of Yangling

A centralized biogas plant was built in Shikaoi town, Hokkaido, Japan to treat manure from 1320 cattle heads. The biogas plant was designed to operate at a feeding amount of 85.8 t/day, a hydraulic retention time (HRT) of 37 days and at a digester temperature of 38 ?C. In this study, the operational performance of biogas plant, utilization of digested slurry and economic balance were investigated. Since the working conditions of the plant became stable, the biogas production was 2,687 m3/day, 92% of produced biogas was consumed in power generation. Average methane concentration in produced biogas was 57.7%. The hydrogen sulfide (H2S) concentration was decreased to below 140 ppm as a result of bio-desulfurization and dry-desulfurization. The average power generation was 3,737 kwh/day and from that 54% of produced biogas was consumed in the facility operation, while 46% was sold to Power Company. About 20,260 t of digested slurry were applied onto 602 ha grassland and agricultural fields. From the results of the operational performance of the plant and the economic balance evidence, it is evident that the centralized biogas plant has a positive effect on the local economy.

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The Economic Performance of an Integrated Biogas Plant and Proton Exchange Membrane Fuel Cell Combined Heat and Power System (PEMFC-CHP) in Sweden

ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology ◽

10.1115/fuelcell2014-6713 ◽

2014 ◽

Author(s):

Tingting Guan ◽

Per Alvfors

Keyword(s):

Fuel Cell ◽

Proton Exchange Membrane ◽

District Heating ◽

Heating System ◽

Combined Heat And Power ◽

Proton Exchange ◽

Biogas Plant ◽

District Heating System ◽

Centralized Biogas Plant ◽

Exchange Membrane

A Proton Exchange Membrane Fuel Cell Combined Heat and Power system (PEMFC-CHP) fuelled by the hydrogen-rich gas reformed from biogas may be seen as an efficient and sustainable technology. This system can provide electrical and thermal energy dynamically to residential applications. In this study, an assessment of the economic performance of an integrated biogas plant and PEMFC-CHP for Swedish electricity and heat prices is presented. The economic factors considered are the capital and operation & maintenance (O&M) costs of the biogas plant and the PEMFC-CHP, the price of heat and electricity, and the value of the digestate as fertilizer. The analysis includes two cases: 1) both biogas plant and PEMFC-CHP are located on the farm. The farm sells the electricity and heat to the power grid and district heating system, respectively; 2) the PEMFC-CHP is located in a centralized-biogas plant, not on the farm. The manure is transported from farms to the plant. The plant also sells the electricity and heat to the power grid and district heating system. The results show that the farm-based and the centralized biogas plant have almost the same biogas production cost. The electricity cost of today, expected for 2020, and for the break-even of this integrated system are 530, 305 and 197 €/MWh, respectively. With the current trend of the fuel cell industry development, this break-even price may be reached in the near future.

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An Approach of Investigating Local Livestock Manure Treatment System by LCA: Calculation of Greenhouse Gas Emissions Reduction Performance on Utilizing Centralized Biogas Plant

Journal of Life Cycle Assessment Japan ◽

10.3370/lca.5.68 ◽

2009 ◽

Vol 5 (1) ◽

pp. 68-78

Author(s):

Tatsuo HISHINUMA ◽

Akio SHIMIZU ◽

Cuifen YANG ◽

Yutaka GENCHI

Keyword(s):

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Biogas Plant ◽

Treatment System ◽

Emissions Reduction ◽

Livestock Manure ◽

Gas Emissions ◽

Manure Treatment ◽

Centralized Biogas Plant

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The feasibility of a centralized biogas plant treating the manure produced by an organized animal farmers union in Turkey

Water Science & Technology ◽

10.2166/wst.2012.203 ◽

2012 ◽

Vol 66 (3) ◽

pp. 556-563 ◽

Cited By ~ 3

Author(s):

R. K. Dereli ◽

C. Yangin-Gomec ◽

A. Ozabali ◽

I. Ozturk

Keyword(s):

Energy Recovery ◽

Biogas Plant ◽

Maize Silage ◽

Anaerobic Reactors ◽

Recovery Potential ◽

Animal Wastes ◽

Biomethane Production ◽

Heavy Goods Vehicles ◽

Centralized Biogas Plant ◽

Substrate Addition

The aim of this study is to evaluate the feasibility and the energy recovery potential of mesophilic (30–35 °C) anaerobic digestion of animal wastes (manure) at a centralized biogas plant (CBP) for 35,000 cattle. The proposed CBP is composed of an equalization tank followed by pasteurization and 3+[1/2] modules; i.e. each module consists of four completely mixed anaerobic reactors with a capacity of treating the manure from 10,000 cattle. The effect of maize silage loading, as the co-substrate, both on biomethane production and feasibility of the system was also evaluated. Besides, the transport fuel substitutes of the produced biomethane with or without co-substrate were also investigated. Results of the proposed CBP indicated that biomethane production increased ca. 1.65 fold with co-substrate addition and pay-back periods for one module treating 10,000 cattle manure are calculated to be ca. 11 and 7.0 yr without and with silage addition, respectively. Besides, considering the potential revenue when replacing transport fuels, about 74 heavy goods vehicles or 1,560 cars may be powered per year by the biogas produced from the proposed CBP where the co-digestion of manure and maize silage is applied.

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