Biomass Combined Heat and Power Catalog of Technologies

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EPA Combined Heat and Power Partnership Biomass CHP Catalog Equipment and Installed Costs The main cost for the gasification train is the primary gasification reactor itself. Supplementary processing can occur in a tar cracker. Indirect gasifiers have separate char combustors to supply heat. The next major part is the gas cleanup section, which includes ash removal, quench, bag filter, wet scrubber, and heat exchangers to cool the syngas and provide heat to other parts of the process or to contribute to the CHP heat utilization. Capital costs for the gasification section and for a biomass-to-syngas plant are shown in Table 5-14. These costs are estimated based on published estimates (Antares Group, Inc., 2003) and discussions with equipment suppliers. The unit costs do not show a uniform declining trend as a function of size, but instead vary depending on the process considered. Table 5-14. Biomass Gasification Capital Costs to Produce Syngas Gasifier Cases Atmospheric Gasification Atmospheric Gasification Atmospheric Gasification High-Pressure Gasifier Gasifier type Tons/day (as received) Gasifier equipment Installation Total Installed Gasification BSieocmtiaosns Prep Yard* Total Installed Capital Cost Unit Cost ($/MMBtu/hr) (syngas) Fixed 100 $1,225,000 $612,000 $1,837,000 $2,639,700 $4,476,700 $127,164 Fluidized 260 $10,050,000 $5,024,000 $15,074,000 $3,947,400 $19,021,400 $209,425 Fluidized 450 $15,158,000 $7,578,000 $22,736,000 $4,972,000 $27,708,000 $174,130 Fluidized/ high-pressure 1,200 $34,682,000 $17,338,000 $52,020,000 $9,685,766 $61,705,766 $161,270 *Prep-Yard costs are estimated based on the capital cost curve developed in section 4.1.5 Source: Based on data from Antares Group, Inc., 2003; discussion with equipment suppliers and developers. O&M Costs Non-fuel O&M costs for gasification include O&M labor, supervisory labor, water, ash removal, insurance, taxes, royalties, and other operating materials. These costs are estimated in Table 5-15 based on published estimates and discussions with equipment suppliers.62 62 Antares Group Inc., 2003 5. Biomass Conversion Technologies 53

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