Development of oxy-fuel IGCC system with CO2 recirculation for CO2 capture

Oki, Yuso; Inumaru, Jun; Hará, Saburo; Kobayashi, Makoto; Watanabe, Hiroaki; Umemoto, Susumu; Makino, Hisao

doi:10.1016/j.egypro.2011.01.156

Cited by 38 publications

(18 citation statements)

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“…The CO 2 capture efficiencies for Cases 2-4 are comparable to various other studies [10,11,20,58,62]. The lower capture efficiency in Case 2 is due to (i) incomplete absorption of CO 2 ($95-97%) by the Selexol solvent, and (ii) 98% CO conversion in the two WGS reactors.…”

Section: Comparison Of Clc With Pre-combustion and Oxy-fuel Combustiosupporting

confidence: 84%

“…The GT exhaust consisting primarily of CO 2 and water vapour is sent for heat recovery in the HRSG, where the vapour is condensed and DT min = 10 C with no pressure drop separated from CO 2 . Nearly 80% (by mass) of this CO 2 stream is compressed and recycled to the GT combustor to maintain the operating temperature of 1300 C [20]. The remaining 20% of CO 2 is compressed to 150 atm for storage.…”

Section: Capturementioning

confidence: 99%

“…However, some studies have proposed new process designs to incorporate oxy-fuel combustion into IGCC plants. For instance, Oki et al [20] demonstrated an innovative oxy-fuel IGCC process using pure oxygen instead of air in the gas turbine (GT) combustor unit of an IGCC. This configuration prevents dilution of the GT exhaust stream with N 2 and produces a pure CO 2 stream.…”

Section: Introductionmentioning

confidence: 99%

“…Physical absorption-based pre-combustion capture, and capture following oxy-fuel combustion, are another two promising technologies for CO 2 capture, which are commonly studied [17][18][19][20]. Oxy-fuel combustion involves burning the fuel in a mixture of pure oxygen and recycled CO 2 (the CO 2 serves as thermal ballast, to reduce the overall flame temperature, which would be exceedingly high for a mixture of pure oxygen and fuel).…”

Section: Introductionmentioning

confidence: 99%

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Energy and exergy analysis of chemical looping combustion technology and comparison with pre-combustion and oxy-fuel combustion technologies for CO2 capture

Mukherjee

Kumar

Yang

et al. 2015

Journal of Environmental Chemical Engineering

108

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A B S T R A C TCarbon dioxide (CO 2 ) emitted from conventional coal-based power plants is a growing concern for the environment. Chemical looping combustion (CLC), pre-combustion and oxy-fuel combustion are promising CO 2 capture technologies which allow clean electricity generation from coal in an integrated gasification combined cycle (IGCC) power plant. This work compares the characteristics of the above three capture technologies to those of a conventional IGCC plant without CO 2 capture. CLC technology is also investigated for two different process configurations-(i) an integrated gasification combined cycle coupled with chemical looping combustion (IGCC-CLC), and (ii) coal direct chemical looping combustion (CDCLC)-using exergy analysis to exploit the complete potential of CLC. Power output, net electrical efficiency and CO 2 capture efficiency are the key parameters investigated for the assessment. Flowsheet models of five different types of IGCC power plants, (four with and one without CO 2 capture), were developed in the Aspen plus simulation package. The results indicate that with respect to conventional IGCC power plant, IGCC-CLC exhibited an energy penalty of 4.5%, compared with 7.1% and 9.1% for precombustion and oxy-fuel combustion technologies, respectively. IGCC-CLC and oxy-fuel combustion technologies achieved an overall CO 2 capture rate of $100% whereas pre-combustion technology could capture $94.8%. Modification of IGCC-CLC into CDCLC tends to increase the net electrical efficiency by 4.7% while maintaining 100% CO 2 capture rate. A detailed exergy analysis performed on the two CLC process configurations (IGCC-CLC and CDCLC) and conventional IGCC process demonstrates that CLC technology can be thermodynamically as efficient as a conventional IGCC process.

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Section: Comparison Of Clc With Pre-combustion and Oxy-fuel Combustiosupporting

confidence: 84%

Section: Capturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Energy and exergy analysis of chemical looping combustion technology and comparison with pre-combustion and oxy-fuel combustion technologies for CO2 capture

Mukherjee

Kumar

Yang

et al. 2015

Journal of Environmental Chemical Engineering

108

View full text Add to dashboard Cite

show abstract

“…In CRIEPI, to keep the high efficiency power generation of IGCC when CO 2 is removed, new type CO 2 removal IGCC system using O 2 -CO 2 blown gasifier and O 2 -CO 2 blown gas turbine. Figure 11 shows the flow of this system [4]. This system is supposed a combination of IGCC and OxyFuel (O 2 -CO 2 blown) pulverized coal combustion system.…”

Section: Investigation Of Co 2 Capture and Storage Methodsmentioning

confidence: 99%

Reduction technology of carbon dioxide emission from a coal utilized power generation system

Makino¹,

Noda²

2011

WIT Transactions on Ecology and the Environment

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Coal is an important energy resource for meeting the further demand for electricity, as coal reserves are much more abundant than those of other fossil fuels. But, coal utilization technology produces carbon dioxide more than other fossil fuels, because of the higher carbon content of coal. For the control of the global warming problem, it is required to develop a new technology for the reduction of carbon dioxide emission from coal-utilized power stations.To reduce carbon dioxide emission, it is very important to develop a new technology of high efficiency power generation system and utilize biomass energy of carbon neutral. For the further reduction of carbon dioxide, the removal and storage technology is an effective one. It is necessary to apply the smart process of powder technology for the development of coal utilized power generation system of new type including a high efficiency power generation system and carbon dioxide removal type power generation system. For the utilization of biomass energy, it is very important to develop the smart technology for the handling of biomass like drying, carbonizing, pulverizing and conversion technology.In this paper, many technologies for the powder handling related to the high efficiency coal utilized power generation, biomass utilization and carbon dioxide removal power generation are introduced. Furthermore, the present level of these technologies and the development tendency for the future are surveyed.

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Study on different zero CO₂emission IGCC systems with CO₂capture by integrating OTM

Duan

Sun

Yue

et al. 2016

Int. J. Energy Res.

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Summary In this paper, different zero CO2 emission integrated gasification combined cycle (IGCC) systems based on the oxy‐fuel combustion method by integrating with oxygen ion transfer membrane (OTM) with and without sweep gas are proposed in order to reduce the energy consumption of CO2 capture. By utilizing the Aspen Plus software, the overall system models are established. The performances of the proposed systems are compared with the traditional IGCC system without CO2 capture and the zero CO2 emission IGCC system based on the oxy‐fuel combustion method using the cryogenic air separation unit. In addition, the effects of OTM key parameters on the proposed system performance, such as the feed side pressure, permeate side pressure, and operating temperature, are investigated and analyzed. The results show that the efficiency of the zero CO2 emission IGCC system based on the oxy‐fuel combustion method integrated with OTM without sweep gas is 6.67% lower than that of the traditional IGCC system without CO2 capture, but 1.88% higher than that of the zero CO2 emission IGCC system using the cryogenic air separation unit, and 0.64% lower than that of the proposed system with sweep gas. The research achievements will provide valuable references for further study on CO2 capture based on IGCC with lower energy penalty. Copyright © 2016 John Wiley & Sons, Ltd.

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Development of oxy-fuel IGCC system with CO2 recirculation for CO2 capture

Cited by 38 publications

References 0 publications

Energy and exergy analysis of chemical looping combustion technology and comparison with pre-combustion and oxy-fuel combustion technologies for CO2 capture

Energy and exergy analysis of chemical looping combustion technology and comparison with pre-combustion and oxy-fuel combustion technologies for CO2 capture

Reduction technology of carbon dioxide emission from a coal utilized power generation system

Study on different zero CO₂emission IGCC systems with CO₂capture by integrating OTM

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Development of oxy-fuel IGCC system with CO2 recirculation for CO2 capture

Cited by 38 publications

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Energy and exergy analysis of chemical looping combustion technology and comparison with pre-combustion and oxy-fuel combustion technologies for CO2 capture

Energy and exergy analysis of chemical looping combustion technology and comparison with pre-combustion and oxy-fuel combustion technologies for CO2 capture

Reduction technology of carbon dioxide emission from a coal utilized power generation system

Study on different zero CO2emission IGCC systems with CO2capture by integrating OTM

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Study on different zero CO₂emission IGCC systems with CO₂capture by integrating OTM