Process simulation and thermodynamic analysis of an IGCC (integrated gasification combined cycle) plant with an entrained coal gasifier

Lee, Jae Chul; Lee, Hyeon Hui; Joo, Yong Jin; Lee, Chang Ha; Oh, Min

doi:10.1016/j.energy.2013.11.069

Cited by 79 publications

(25 citation statements)

References 19 publications

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“…If the CO 2 effluent gases from a water-gas-shift reaction (WGSR), gasifier, or combustor directly be captured even at intermediate to high temperature conditions, more energy-efficient processes for CO 2 capture can be designed. For example, the temperature of flue gas in the Integrated Gasification Combined Cycle (IGCC) process is usually supplied to a gas turbine in the range of 150-450°C [18]. Therefore, to improve the overall energy efficiency for IGCC with a carbon capture process, efficient sorbent materials for CO 2 capture at intermediate and high temperatures can contribute to improving the flexibility and efficiency of the process design configuration.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous MgO sorbent promoted with KNO3 for CO2 capture at intermediate temperatures

Park

Jeon

et al. 2014

Chemical Engineering Journal

120

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Section: Introductionmentioning

confidence: 99%

Mesoporous MgO sorbent promoted with KNO3 for CO2 capture at intermediate temperatures

Park

Jeon

et al. 2014

Chemical Engineering Journal

120

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“…For example, efficient H 2 recovery from the off-gas of the integrated gasification combined cycle (IGCC) is an important issue for green power generation (Lee et al 2014b). After carbon capture in the IGCC, recovered H 2 can be used to power hydrogen turbines and as a renewable energy source.…”

mentioning

confidence: 99%

Adsorption kinetics of CO2, CO, N2 and CH4 on zeolite LiX pellet and activated carbon granule

Park

et al. 2015

Adsorption

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The adsorption uptake curves of CO 2 , CO, N 2 and CH 4 on zeolite LiX and activated carbon were measured using a volumetric method at 293, 308 and 323 K and pressure up to 100 kPa. The experimental uptake curves were correlated with a non-isothermal kinetic model because the adsorption kinetics was controlled by heat generation and transfer, and an isothermal model showed large deviation from experimental uptake. The adsorption rates of the gases on zeolite LiX and activated carbon were affected by the isosteric heat of adsorption, heat transfer rate and adsorption affinity. At the same pressure and temperature, the sequence of effective diffusion time constants was CO 2 ( CO \ N 2 \ CH 4 for zeolite LiX and CO 2 ( CH 4 B N 2 \ CO for activated carbon. The adsorption rate of CO showed the largest difference between the two adsorbents. Effective diffusion time constants (D/R 2 ) for all cases were provided, which depended on pressure and temperature.Keywords Activated carbon Á Zeolite LiX Á Adsorption kinetics Á Heat of adsorption Á Non-isothermal model List of symbols a External surface area divided by the volume of the adsorbent (m -1 ) c p Concentration in the particle (mol kg -1 ) C s Heat capacity of the sample (J g -1 K -1 ) D/R 2 Effective diffusion time constant (s -1 ) D Diffusivity (m 2 s -1 ) D c /r c Micropore diffusion time constant (s -1 ) D p /R p Effective macropore diffusion time constant (s -1 ) hOverall heat transfer coefficient (J m -1 s -1 K -1 ) K Henry constant (-) P Pressure (kPa) Q Adsorbed amount (mol kg -1 ) Q st Isosteric heat of adsorption (kJ mol -1 ) R Ideal gas constant (J mol -1 K -1 ) R 2 Coefficient of determination (R 2 ) (-) T Time (s) T Temperature (K) V g Volume occupied by the gas (m 3 ) V s Volume occupied by the adsorbent (m 3 ) a Dimensionless parameter defined by nonisothermal model (-) bDimensionless parameter defined by nonisothermal model (-) q s Density of the adsorbent (g m -3 )

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“…Gasification is a process wherein the biomass undergoes devolatilization at lower temperatures (about 300 Ce400 C) followed by tar cracking and gas phase reactions at higher temperatures (400e800 C). In some instances the temperature of coal gasification can reach 1400 C [6]. Some of the earliest gasification studies include those of Ergun [7], where coke gasification was studied extensively and the composition of syngas at various temperatures was obtained.…”

Section: Biomass Gasificationmentioning

confidence: 99%

Design of biomass and natural gas based IGFC using multi-objective optimization

Naraharisetti

Lakshminarayanan

Karimi

2014

Energy

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Process simulation and thermodynamic analysis of an IGCC (integrated gasification combined cycle) plant with an entrained coal gasifier

Cited by 79 publications

References 19 publications

Mesoporous MgO sorbent promoted with KNO3 for CO2 capture at intermediate temperatures

Mesoporous MgO sorbent promoted with KNO3 for CO2 capture at intermediate temperatures

Adsorption kinetics of CO2, CO, N2 and CH4 on zeolite LiX pellet and activated carbon granule

Design of biomass and natural gas based IGFC using multi-objective optimization

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