Biomass Gasification Hot Gas Cleanup for Power Generation

Wiant, B.C.; Bachovchin, D.M.; Horazak, D.A.; Onischak, M.; Carty, R.H.; Ruel, Roy H.

doi:10.1115/93-jpgc-gt-1

Cited by 12 publications

(13 citation statements)

References 2 publications

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“…Recent operation of the Värnamo facility in Sweden showed that hot gas ceramic and metal candle filters can effectively clean the product gas. Similar results were also obtained in limited tests at the gasifier demonstration in Hawaii (Lau, 1998;Wiant, et al, 1997Wiant, et al, , 1994aWiant, et al, , 1994b. These filtration systems, which are used extensively in other systems, appear to be suitable for biomass systems.…”

Section: Systems Producing Warm or Hot Fuel Gases With Significant Gasupporting

confidence: 72%

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Hot Gas Conditioning: Recent Progress with Larger-Scale Biomass Gasification Systems; Update and Summary of Recent Progress

Stevens¹

2001

131

105

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As a result of environmental and policy considerations, there is increasing interest in using renewable biomass resources as feedstock for power, fuels, and chemicals and hydrogen. Biomass gasification is seen as an important technology component for expanding the use of biomass. Advanced biomass gasification systems provide clean products that can be used as fuel or synthesis gases in a variety of environmentally friendly processes.Advanced end-use technologies such as gas turbines or synthesis gas systems require high quality gases with narrowly defined specifications. Other systems such as boilers may also have fuel quality requirements, but they will be substantially less demanding. The gas product from biomass gasifiers contains quantities of particulates, tars, and other constituents that may exceed these specified limits. As a result, gas cleaning and conditioning will be required in most systems.Over the past decade, significant research and development activities have been conducted on the topic of gas cleanup and conditioning. This report provides an update of efforts related to large-scale biomass gasification systems and summarizes recent progress. Remaining research and development issues are also summarized.

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Section: Systems Producing Warm or Hot Fuel Gases With Significant Gasupporting

confidence: 72%

“…Ceramic candle filters were also tested at a research and development gasifier facility in Hawaii in the mid-1990's (Wiant, 1998(Wiant, , 1994a(Wiant, , 1994bLau, 1998). In that demonstration facility, gas was produced at about 980 °C, and a slip-stream was diverted to a hot-gas cleanup unit.…”

Section: Barrier Filtersmentioning

confidence: 99%

Hot Gas Conditioning: Recent Progress with Larger-Scale Biomass Gasification Systems; Update and Summary of Recent Progress

Stevens¹

2001

131

105

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“…Fluidized beds and CFBs have an average "tar" 40% of PNAs are heavier than 3-rings. Wiant et al 1994 C. Nature of "Tar" as a Function of Gasifier Type (See Section II)…”

Section: B "Tar" Quantities As a Function Of Gasifier Typementioning

confidence: 99%

“…• Wiant et al (1994) describe tests of Ni-based, various alumina and alumina-silicate, and DN-34 catalysts in a secondary reactor. IGT gasifier projected to contain oils and "tars" at ~2 g/acf.…”

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confidence: 99%

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Biomass Gasifier ''Tars'': Their Nature, Formation, and Conversion

Milne¹,

Evans

Abatzaglou³

1998

730

754

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Biomass Feed System Flow Control Using a Weigh Belt Table

Maxwell

Nevill

Ertaş

et al. 2005

Journal of Energy Resources Technology

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Over the last 100 years, the ability to reliably extract energy through biomass gasification has proven to be quite elusive. Environmental issues, energy shortages, and the lack of coherent energy development policies in third world countries have kindled a renewed interest in biomass gasification technology. Recent innovations in pressurized fluidized bed gasification technology have raised expectations for the development of highly efficient biomass gasification power systems. The use of pressurized gasification systems has introduced a supposedly insurmountable problem regarding the transport of biomass across a pressure differential as it is fed to the gasifier. The biomass feed system must provide the capability to not only reliably feed the biomass to the gasifier, it must also monitor and automatically adjust the feed rate to the operating condition of the system. This paper presents the development of a biomass feed system, weight belt assembly modeling, and automated cascade loop PID control development.

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Biomass Gasification Hot Gas Cleanup for Power Generation

Cited by 12 publications

References 2 publications

Hot Gas Conditioning: Recent Progress with Larger-Scale Biomass Gasification Systems; Update and Summary of Recent Progress

Hot Gas Conditioning: Recent Progress with Larger-Scale Biomass Gasification Systems; Update and Summary of Recent Progress

Biomass Gasifier ''Tars'': Their Nature, Formation, and Conversion

Biomass Feed System Flow Control Using a Weigh Belt Table

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