Conceptual model and evaluation of generated power and emissions in an IGCC plant

Pérez–Fortes, Mar; Bojarski, Aarón David; Velo, Enrique; Nougués, José María; Puigjaner, Luís

doi:10.1016/j.energy.2009.05.012

Cited by 84 publications

(30 citation statements)

References 34 publications

(51 reference statements)

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“…Synthesis gas can be used e.g., in a gas turbine or solid oxide fuel cell to generate electricity [20][21][22][23]. Furthermore, synthesis gas is a widely used feedstock for the chemical industry wherewith valuable chemicals as e.g., synthetic fuels and/or methanol and many others can be produced [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

New Approaches for the Production of Hydrocarbons from Hydrate Bearing Sediments

et al. 2011

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Abstract:The presence of natural gas hydrates at all active and passive continental margins has been proven. Their global occurrence as well as the fact that huge amounts of methane and other lighter hydrocarbons are stored in natural gas hydrates has led to the idea of using hydrate bearing sediments as an energy resource. However, natural gas hydrates remain stable as long as they are in mechanical, thermal and chemical equilibrium with their environment. Thus, for the production of gas from hydrate bearing sediments, at least one of these equilibrium states must be disturbed by depressurization, heating or addition of chemicals such as CO 2 . Depressurization, thermal or chemical stimulation may be used alone or in combination, but the idea of producing hydrocarbons from hydrate bearing sediments by CO 2 injection suggests the potential of an almost emission free use of this unconventional natural gas resource. However, up to now there are still open questions regarding all three production principles. Within the framework of the German national research project SUGAR the thermal stimulation method by use of in situ combustion was developed and tested on a pilot plant scale and the CH 4 -CO 2 swapping process in gas hydrates studied on a molecular level. Microscopy, confocal Raman spectroscopy and X-ray diffraction were used for in situ investigations of the CO 2 -hydrocarbon exchange process in gas hydrates and its driving forces. For the thermal stimulation a heat exchange reactor was designed and tested for the exothermal catalytic oxidation of methane. OPEN ACCESSEnergies 2011, 4 152 Furthermore, a large scale reservoir simulator was realized to synthesize hydrates in sediments under conditions similar to nature and to test the efficiency of the reactor. Thermocouples placed in the reservoir simulator with a total volume of 425 L collect data regarding the propagation of the heat front. In addition, CH 4 sensors are placed in the water saturated sediment to detect the distribution of CH 4 in the sample. These data are used for numerical simulations for up-scaling from laboratory to field conditions. This study presents the experimental set up of the large scale reservoir simulator and the reactor design. Preliminary results indicate that the catalytic oxidation of CH 4 operated as a temperature controlled, autothermal reaction in a countercurrent heat exchange reactor is a safe and promising tool for the thermal stimulation of hydrates. In addition, preliminary results from the laboratory studies on the CO 2 -hydrocarbon swapping process in simple and mixed gas hydrates are presented.

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Section: Introductionmentioning

confidence: 99%

New Approaches for the Production of Hydrocarbons from Hydrate Bearing Sediments

et al. 2011

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“…Higher flow rates in the integrated combined cycle allows higher flow rate to steam turbines thus maximizes thermal efficiency [20]. The steam boiler generates saturated steam above 100 °C , which reaches to superheated steam at 230 °C after passing through HRSG before entering the steam turbine, as shown in Figure 2.…”

Section: Combined Syngas and Steam Cyclementioning

confidence: 99%

Conceptual Design and Energy Analysis of Integrated Combined Cycle Gasification System

Aboughaly

Russo

2017

Sustainability

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Abstract:In this paper, an integrated gasification combined cycle conceptual design that achieves optimum energy efficiency and 82.9% heat integration between hot and cold utilities is illustrated. The integrated combined gasification cycle (IGCC) is also modeled and evaluated for the co-production of electricity, ammonia and methane for 543.13 kilo tonne per annum (KTA) of municipal solid waste (MSW). The final products are 1284.89 MW, 8731.07 kg/h of liquid ammonia at 8 • C and 32,468 kg/h of methane gas at 271 • C. The conceptual design includes advanced heat integration between syngas and hot and cold streams in all process units. The water gas shift (WGS) unit includes integration between equilibrium reactors and cold streams. The air separation unit (ASU) includes four air compressors followed by a pressure swing adsorber (PSA), which separates oxygen and nitrogen gases into separate streams. Both O 2 and N 2 gases are compressed and sent to gasifier and syngas cleaning unit, respectively. The overall design shows reliability and solved steady state equations for all process units with improvements in thermal efficiency in comparison with single cycle gasification plants. The environmental emissions for GHGs such CO 2 and SO 2 are lower due to higher overall energy efficiency.

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“…In this historically challenging stage, our human civilization has conferred the technologies of cost-effective oxygen production unprecedented importance to conserve the environment. Among the three major clean energy schemes namely pre-combustion, oxyfuel and post-combustion, the preceding two of them need pure oxygen from air separation unit; however, the high cost of the expensive and energy intensive cryogenic distillation method restricts their applications [7][8][9][10][11]. In some sense, we can claim that the world will become greener if the oxygen production cost has been reduced significantly to meet up the industrial profitable operation.…”

Section: Introductionmentioning

confidence: 99%

A novel CO2-resistant ceramic dual-phase hollow fiber membrane for oxygen separation

Meng

Liu

et al. 2017

Journal of Membrane Science

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Robust oxygen permeable ceramic membranes have potential applications in clean energy industries like oxyfuel power plants and green chemical synthesis like syngas production combining the separation and reaction in one unit. The well-known and 1 These authors contributed equally to this work and should be considered co-first authors without any noticeable performance degradation or membrane deterioration. By contrast, the flux rate of pure perovskite membrane had been sharply dropped down by 80% albeit operated for only 8 hours.

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Conceptual model and evaluation of generated power and emissions in an IGCC plant

Cited by 84 publications

References 34 publications

New Approaches for the Production of Hydrocarbons from Hydrate Bearing Sediments

New Approaches for the Production of Hydrocarbons from Hydrate Bearing Sediments

Conceptual Design and Energy Analysis of Integrated Combined Cycle Gasification System

A novel CO2-resistant ceramic dual-phase hollow fiber membrane for oxygen separation

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