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On the cost of IGCC power generation


If the generation cost of 3.6 cents / kWh, the time when heat and power generation costs can be reduced to 3 to 3.3 cents / kWh. Experience shows that the United States WabashRiverIGCC: Rehabilitation of about plant investment costs than comparable new construction by reducing 10 ~ 2O, and can shorten the construction period in general,[link widoczny dla zalogowanych], the amidine high temperature desulfurization system helps to reduce ash IGCC than the investment costs,[link widoczny dla zalogowanych], but This program has not been through, to be further developed. Practice shows. As labor costs and raw material price differences in different regions of the IGCC power plant manufacturing and installation costs than investment in a very big difference. According to statistics, the discount was among regions: Europe; United States: Taiwan: Thailand: a Chinese 1:0.974:0.862:0759:0.672. Of course. In the IGCC equipment to mass production, than the investment costs will decrease. In order to reduce the cost of electricity in fuel costs, in addition to the IGCC unit should be selected high,[link widoczny dla zalogowanych], the use of cheap fuel is the key. Currently, the U.S. proposed IGCC should be used in PC + FGD plants than conventional coal prices low lO ~ 35 of the coal, or use cheap inferior 5O residue. When the fuel prices lower sudden cooling can consider IGCC program. If fuel prices are cheaper but a lot of ash melting point and low. Are advised to use fluidized bed gasifier, so as to ensure the lowest cost of IGCC power generation, of course, fuel prices impact the cost of IGCC power generation will not be like on a gas-steam combined cycle are so great. In addition. The unit should also strive to 6 often run at high load conditions, so by the higher average net efficiency _H. The results show that: IGCC operation and maintenance costs slightly higher than other units,[link widoczny dla zalogowanych], such as: the 250MW, r on a 8000h using the number of hours the unit, the Union sets the COM cycle unit of a 0.32 cents / kWh; coal-fired steam power plant for the o. 4 cents / kWh; Texaco Gasifier IGCC, compared with 0.44 cents / kwh. General. Through the work of the past few years,[link widoczny dla zalogowanych], large-scale IGCC power plants use of a H-type gas turbines. The specific investment cost will be closer to 1000S/kw, it already has to compete with the PC + FGD capacity. Currently, the refinery is under construction in foreign countries than the investment costs of IGCC is close to $ 1100/kW ~ $ 1200/kW level. According to technical and economic analysis. Abroad on the estimated IGCC applications are: (1) in-place gas prices equal to or less than $ 2.37 / GJ, the selection of F-and H-type gas-steam combined cycle is the most competitive; (2 ) but the local gas refineries without cheap fuel. Should consider using IGCC, the cost of electricity and the PC + FGD similar, but much better environmental quality. In addition. It also co-production of hydrogen and water vapor, from a technical and economic point of view, IGcc preemption. (3) the time when the only coal. IGCC selected on the premise that: * requirements generation coal is cheap, or heat, electricity, gas variety of products to choose the composition of E-type gas turbine IGCC, because the cost of electricity higher than PC + FGD persons; * environmental requirements of high require a variety of products Uprating field or cogeneration units can choose the composition of F-type gas turbine IGCC, the cost of electricity is close to PC + FGD persons; * formed by the H-type units can be used alone IGCC power generation or cogeneration a variety of products, you can also transform the existing power plant capacity increase. When the cost of electricity in coal-fired PC + FGD were lower than the 5 to 7. PC + FGD plants is a major competitor. Reference ? l: Victorde & aSteadyg ~ insinIGccEconomiesReportedatGasificationMeeting: J]. GasTurbineworldVol29Noll999.18-26: 2] focus tree construction. On instructions from power plants into the calculation of J:. Gas Turbine Technology, VD 『. 13No3. : Ha ~ ryt. DMToddCurremIGCCMarke ~ eompetifiveaess_R] G. ECompany. Novl0.1996] lj_MToddJamesR. Joiner. ] GCCcostsrudy ~ R] _j] DMToddCleanCoalandHeavyOilTechnologies {or (Tu-bine-C] GER3650E.1996
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