Investigation of a Small Biomass Gasifier–engine System Operation and Its Application to Water Pumping in Rural Thailand

Tippayawong, Nakorn; Chaichana, Chatchawan; Promwungkwa, Anucha; Rerkkriangkrai, P.

doi:10.1080/15567036.2010.511433

Cited by 11 publications

(4 citation statements)

References 13 publications

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“…Pyrolytic conversion to fuel and chemicals is, therefore, an attractive alternative for recycling the spent mushroom beds. Spent mushroom substrates have been shown to be a good feedstock for gasification because they have high-energy content similar to that of fuel wood [29][30][31]. Williams et al also reported that spent mushroom beds have potential as an energy feedstock with a high caloric value [32].…”

Section: Introductionmentioning

confidence: 93%

Hydrogen-rich gas production from woody spent mushroom beds via two-step gasification

Kojima

Kato

Yoon

2015

Trans. Mat. Res. Soc. Japan

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To evaluate spent mushroom beds (log and sawdust beds) as a two-step gasification resource, carbonization of spent mushroom beds for the production of char and gasification of the chars were performed using a small laboratory system. Carbonization of the mushroom beds at 600 °C produced suitable chars as the source for steam gasification. In addition, the wood gas produced during the carbonization process had a sufficient higher heating value and thus could be used as the fuel for the gasification step. The gasification of the spent bed chars produced clean hydrogen-rich gases without generation of any by-products. On the other hand, direct gasification of a waste log bed generated hydrocarbon and tar-like materials. Furthermore, the water-gas reaction (C + H2O → CO + H2) was proposed as the mechanism for the gasification process.

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Section: Introductionmentioning

confidence: 93%

Hydrogen-rich gas production from woody spent mushroom beds via two-step gasification

Kojima

Kato

Yoon

2015

Trans. Mat. Res. Soc. Japan

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“…A gasifier could be used to convert this material to producer gas which could be used to displace diesel fuel in a community's existing power generation system. Several sources report the operation of diesel engines on produced gas …”

Section: Introductionmentioning

confidence: 99%

“…Several sources report the operation of diesel engines on produced gas. [5][6][7][8][9][10] In addition to the high cost of electricity, remote northern communities also have difficulties with trash disposal. Dumpsites may be outdated and full.…”

Section: Introductionmentioning

confidence: 99%

Air‐blown bubbling fluidized bed co‐gasification of woody biomass and refuse derived fuel

et al. 2016

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Air‐blown auto‐thermal bubbling fluidized bed gasification of refuse derived fuel (RDF) and wood pellet mixtures was investigated at 725 °C, 800 °C, and 875 °C. Gasification of mixtures containing RDF at 875 °C resulted in agglomeration of bed material, which prevented steady state operation of the gasifier. Results from the analysis of produced gases, equivalence ratios, and feed rates, did not indicate significant interactions between the two different types of fuel pellets during gasification. RDF was found to yield more tar than wood pellets, but wood pellets tended to produce more problematic tar compounds. Only small variations in the lower heating value of produced gases were observed, though a greater portion of the heating value of the gases produced with RDF was provided by C2 and C3 hydrocarbons.

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“…There is a range of different processing technologies for biomass, but may generally be classified into three categories; thermochemical, biochemical and physicochemical processing. Thermochemical processing technology is by far the most popular method for converting biomass into thermal energy or upgraded fuels via combustion, gasification or pyrolysis [3][4][5][6][7][8][9][10]. Direct combustion produces hot flue gas that can be used for process heat or generation of electric power.…”

Section: Introductionmentioning

confidence: 99%

Predicting Ash Deposit Tendency in Thermal Utilization of Biomass

Pintana

Tippayawong

2016

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Abstract. In thermochemical utilization of biomass, ash produced during the process is a major problem that can result in decreased performance and increased in difficulty during operation. Preliminary assessment of potential ash related troubles prior to the use of a specific biomass is valuable, even if it is only a general guideline. In this work, tendency of ash slagging, fouling and agglomeration in thermal processing of biomass was evaluated. Reference peered reviewed data including mineral content and fusion temperature of selected biomass ash were used to calculate multiple indicators (base to acid ratio, slagging index, fouling index, agglomeration index, slag viscosity index, and ternary diagram of main biomass ash composition) adopted from coal research. Major ash forming elements (Fe, Ca, Mg, K, Na, Al, Si) were found to be of relevance to ash melting and deposit behavior. For conventional biomass available locally, woody biomass (wood and wood sawdust) may be combusted without slagging or fouling problem, while non-woody biomasses (bark, husk, straw) are highly probable to experience some of these problems. The ash fusibility predictive models for woody and non-woody biomass were found to be effective. Mitigation can then be designed possibly via fuel blending to avoid or minimize the impact of biomass ash related trouble.

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Investigation of a Small Biomass Gasifier–engine System Operation and Its Application to Water Pumping in Rural Thailand

Cited by 11 publications

References 13 publications

Hydrogen-rich gas production from woody spent mushroom beds via two-step gasification

Hydrogen-rich gas production from woody spent mushroom beds via two-step gasification

Air‐blown bubbling fluidized bed co‐gasification of woody biomass and refuse derived fuel

Predicting Ash Deposit Tendency in Thermal Utilization of Biomass

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