Actual measurement evaluation of small and medium scale woody biomass gasification power generation system

Miyahara, Itsuki; Omura, Kenta; Onoda, Hiroshi

doi:10.1299/jsmeenv.2018.28.214

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“…Wood chips that have been accumulated and kept for about a week are then dried at approximately 230 • C in a hot-air dryer. Next, the chips are fed into the gasifier through the storage hopper at a temperature of 80 • C. To evaluate the gasification power generation process, we consolidated the on-site operations data, analyzed the wood chips' moisture content, calculated the heat balance, and computed the heat generation of gas [19].…”

Section: The Measurement Evaluation Of 036 Mw Small-scale Gasificatio...mentioning

confidence: 99%

An Analysis of the Current Status of Woody Biomass Gasification Power Generation in Japan

2020

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Forests cover two-thirds of Japan’s land area, and woody biomass is attracting attention as one of the most promising renewable energy sources in the country. The Feed-in Tariff (FIT) Act came into effect in 2012, and since then, woody biomass power generation has spread rapidly. Gasification power generation, which can generate electricity on a relatively small scale, has attracted a lot of attention. However, the technical issues of this technology remain poorly defined. This paper aims to clarify the problems of woody biomass gasification power generation in Japan, specifically on the challenges of improving energy utilization rate, the problem of controlling the moisture content, and the different performance of power generation facilities that uses different tree species. We also describe the technological development of a 2 MW updraft reactor for gasification and bio-oil coproduction to improve the energy utilization rate. The lower heating value of bio-oil, which was obtained in the experiment, was found to be about 70% of A-fuel oil. Among the results, the importance of controlling the moisture content of wood chips is identified from the measurement evaluation of a 0.36 MW-scale downdraft gasifier’s actual operation. We discuss the effects of tree species variation and ash on gasification power generation based on the results of pyrolysis analysis, industry analysis for each tree species. These results indicate the necessity of building a system specifically suited to Japan’s climate and forestry industry to allow woody biomass gasification power generation to become widespread in Japan.

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Section: The Measurement Evaluation Of 036 Mw Small-scale Gasificatio...mentioning

confidence: 99%

An Analysis of the Current Status of Woody Biomass Gasification Power Generation in Japan

2020

Self Cite

View full text Add to dashboard Cite

show abstract

Actual measurement evaluation of small and medium scale woody biomass gasification power generation system

Cited by 1 publication

References 0 publications

An Analysis of the Current Status of Woody Biomass Gasification Power Generation in Japan

An Analysis of the Current Status of Woody Biomass Gasification Power Generation in Japan

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