Biomass Combined Heat and Power Catalog of Technologies

PDF Publication Title:

Biomass Combined Heat and Power Catalog of Technologies ( biomass-combined-heat-and-power-catalog-technologies )

Previous Page View | Next Page View | Return to Search List

Text from PDF Page: 040

EPA Combined Heat and Power Partnership Biomass CHP Catalog 5. Biomass Conversion Technologies In the context of this document, biomass conversion refers to the process of converting biomass into energy that will in turn be used to generate electricity and/or heat. The principal categories of biomass conversion technologies for power and heat production are direct-fired and gasification systems. Within the direct-fired category, specific technologies include stoker boilers, fluidized bed boilers, and cofiring. Within the gasification category, specific technologies include fixed bed gasifiers and fluidized bed gasifiers. Anaerobic digesters are also considered a biomass conversion technology; however, extensive information about digesters is readily available from EP A’s AgST AR Program and therefore, will not be discussed within this chapter. Biomass power systems are typically below 50 MW in size, compared to coal-fired plants, which are in the 100- to 1,000-MW range. Most of today’s biomass power plants are direct-fired systems. The biomass fuel is burned in a boiler to produce high-pressure steam that is used to power a steam turbine- driven power generator. In many applications, steam is extracted from the turbine at medium pressures and temperatures and is used for process heat, space heating, or space cooling. Cofiring involves substituting biomass for a portion of the coal in an existing power plant boiler. It is the most economic near-term option for introducing new biomass power generation. Because much of the existing power plant equipment can be used without major modifications, cofiring is far less expensive than building a new biomass power plant. Compared to the coal it replaces, biomass reduces SO2, NOX, and certain other air emissions. Biomass gasification systems operate by heating biomass in an environment where the solid biomass breaks down to form a flammable gas. The gas produced—synthesis gas, or syngas—can be cleaned, filtered, and then burned in a gas turbine in simple or combined-cycle mode, comparable to LFG or biogas produced from an anaerobic digester. In smaller systems, the syngas can be fired in reciprocating engines, microturbines, Stirling engines, or fuel cells. Gasification technologies using biomass byproducts are popular in the pulp and paper industry where they improve chemical recovery and generate process steam and electricity at higher efficiencies and with lower capital costs than conventional technologies. Pulp and paper industry byproducts that can be gasified include hogged wood, bark, and spent black liquor. Table 5-1 provides a summary of biomass conversion technologies for producing heat and power. Table 5-1. Summary of Biomass CHP Conversion Technologies Biomass Conversion T echnology Common Fuel Types Feed Size Moisture Content Capacity Range Stoker grate, underfire stoker boilers Fluidized bed boiler Cofiring—pulverized coal boilers Cofiring—stoker, fluidized bed boilers Fixed bed gasifier Fluidized bed gasifier Sawdust, bark, chips, hog fuel, shavings, end cuts, sander dust Wood residue, peat, wide variety of fuels Sawdust, bark, shavings, sander dust Sawdust, bark, shavings, hog fuel Chipped wood or hog fuel, rice hulls, shells, sewage sludge Most wood and agriculture residues 0.25–2 in. <2in. < 0.25 in. <2in. 0.25–4 in. 0.25–2 in. 10–50% < 60% < 25% 10–50% < 20% 15–30% 4 to 300 MW (many in the 20 to 50 MW range) Up to 300 MW (many in the 20 to 25 MW range) Up to 1000 MW Up to 300 MW Up to 50 MW Up to 25 MW Source: Based on Wright, 2006. 5. Biomass Conversion Technologies 30

PDF Image | Biomass Combined Heat and Power Catalog of Technologies

biomass-combined-heat-and-power-catalog-technologies-040

PDF Search Title:

Biomass Combined Heat and Power Catalog of Technologies

Original File Name Searched:

biomass_chp_catalog.pdf

DIY PDF Search: Google It | Yahoo | Bing

NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info

IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info

Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info

Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info

Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info

NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info

Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info

CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP