Thermo-economic analyses of concepts for increasing carbon capture in high-methane syngas integrated gasification combined cycle power plants

Rosner, Fabian; Qin, Chen; Rao, Ashok; Samuelsen, Scott

doi:10.1016/j.enconman.2019.112020

Cited by 18 publications

(6 citation statements)

References 25 publications

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“…In the GTL process by means of reforming, methane is converted to synthesis gas (syngas), which is then used as a feed for further GTL processes. For the Fischer–Tropsch GTL process, syngas is best characterized by the ratio of H 2 /CO, which should be around 2.0, after the reforming process. , There are various approaches for methane conversion to syngas, but the major methods are steam methane reforming (SMR), autothermal reforming (ATR), partial oxidation (POx), and hybrid reforming approaches such as steam methane reforming, autothermal reforming, partial oxidation, and dry reforming, as shown in Figure . Factors affecting the choice of how syngas production depends on (i) the H 2 /CO ratio match between produced and overall H 2 demand, (ii) process scale, (iii) overall process requirement for the need of or feasibility of using oxygen enrichment facilities, and (iv) the size and logistics of gas handling equipment such as compressors.…”

Section: Natural Gas Flaring Utilization Technologiesmentioning

confidence: 99%

Recent Developments in Natural Gas Flaring Reduction and Reformation to Energy-Efficient Fuels: A Review

Mansoor

Tahir

2021

Energy Fuels

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Annually billions of cubic meters of natural gas are flared around the globe at various oil and gas production sites. Natural gas flaring practices waste valuable energy resources that can be used for economic support and will also be beneficial to mitigate global warming effects. In this review, an overview of natural gas flaring impacts with respect to the environment with special emphasis on global annual natural gas flaring emissions and their reformation to energy-efficient fuels has been discussed. Initially, natural gas flaring emissions and their impacts in view of environmental pollution and global warming effects have been highlighted. The strategies to mitigate wastage to valuable energy resources through various flaring management strategies are also evaluated. In the main stream, various gas flaring reductions and utilization technologies based on their applications in the oil and gas industry and especially for remote oil and gas fields are discussed. Liquified natural gas (LNG) and compressed natural gas (CNG) technologies have been identified as the main gas flaring reduction methods based on their applicability, commerciality, and economical potential. In addition, gas to liquid (GTL) has been an advancing technology for the past many years toward its utilization of methane as a feed and converting it to useful industrial products such as synthesis crude and methanol. Finally, reformation technologies for synthesis gas (syngas) production such as thermal reforming, plasma reforming, and photoreforming are deliberated. Based on feed gas mixture, different reforming processes such as steam reforming of methane (SRM), dry reforming of methane (DRM), and bi-reforming of methane (BRM) are evaluated for hydrogen-rich syngas production. The future perspectives regarding gas flaring utilization technologies advancement with further improvements in utilization of flared gas to efficient energy fuels are proposed.

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Section: Natural Gas Flaring Utilization Technologiesmentioning

confidence: 99%

Recent Developments in Natural Gas Flaring Reduction and Reformation to Energy-Efficient Fuels: A Review

Mansoor

Tahir

2021

Energy Fuels

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“…Their exergy analysis pointed ways to improve the separation processes, which have very low exergetic efficiency. Other separation studies with IGCC cycles that considered chemical separation methods are those by Kunze et al [15] who used methanol as the chemical agent for capture; Arabkhalaj et al [16] who compared the effects of two coal types (low-ash and high-ash) in the gas separation process; and the analytical, thermos-economics study by Rosner et al [17]. An exergo-environmental analysis of CO2 removal by chemicals including the regeneration process by Petrakopoulou et al highlighted the environmental advantages of the chemical processes, but also showed the substantial amount of heat input at relatively high temperatures, for the regeneration of the chemicals [18].…”

Section: Introductionmentioning

confidence: 99%

A holistic approach to the total energy and cost for carbon capture and sequestration

Michaelidesa

2024

Archives of Thermodynamics

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Carbon capture and sequestration from a stationary source comprises four distinct engineering processes: separation of CO2 from the other flue gases, compression, transportation, and injection into the chosen storage site. An analysis of the thermodynamic and transport properties of CO2 shows that dissolving this gas in seawater at depths more than 600 m is, most likely, an optimal long-term storage method; and that for transportation, the CO2 must be in the denser supercritical state at pressures higher than 7.377 MPa. The separation, compression, transportation, and injection processes require significant energy expenditures, which are determined in this paper using realistic equipment efficiencies, for the cases of two currently in operation coal power plants in Texas. The computations show that the total energy requirements for carbon removal and sequestration are substantial, close to one-third of the energy currently generated by the two power plants. The cost analysis shows that two parameters – the unit cost of the pipeline and the discount factor of the corporation – have a very significant effect on the annualized cost of the CCS process. Doubling the unit cost of the pipeline increases the total annualized cost of the entire CCS project by 36% and increasing the discount rate from 5% to 15% increases this annualized cost by 32%.

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“…The physical properties impacts on CCS processes are well described in [6]. Numerous studies in the literature carried out detailed assessments of CCS processes, based on results from process simulations [7]. For example, several works evaluated the performance of chemical absorption with MonoEthanol-Amine (MEA, C 2 H 7 NO) and membrane-based CCS, concluding that the former is more energy-intensive and generates higher environmental impacts [8].…”

Section: Introductionmentioning

confidence: 99%

Fuelling power plants by natural gas: An analysis of energy efficiency, economical aspects and environmental footprint based on detailed process simulation of the whole carbon capture and storage system

Barberà

Mio

Pavan

et al. 2022

Energy Conversion and Management

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Thermo-economic analyses of concepts for increasing carbon capture in high-methane syngas integrated gasification combined cycle power plants

Cited by 18 publications

References 25 publications

Recent Developments in Natural Gas Flaring Reduction and Reformation to Energy-Efficient Fuels: A Review

Recent Developments in Natural Gas Flaring Reduction and Reformation to Energy-Efficient Fuels: A Review

A holistic approach to the total energy and cost for carbon capture and sequestration

Fuelling power plants by natural gas: An analysis of energy efficiency, economical aspects and environmental footprint based on detailed process simulation of the whole carbon capture and storage system

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