Water gas shift membrane reactor for CO2 control in IGCC systems: techno-economic feasibility study

Bracht, M; Alderliesten, P.T.; Kloster, R.; Pruschek, R.; Haupt, G.; Xue, E.; Ross, J.R.H.; Koukou, Maria K.; Papayannakos, N.

doi:10.1016/s0196-8904(96)00263-4

Cited by 111 publications

(66 citation statements)

References 4 publications

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“…A case study on a coke gasification IGCC plant indicates that a novel cryogenic technology for CO 2 separation promises 16% reduction in CO 2 avoidance costs versus a base case with Selexol [77]. Various studies on the techno-economic impact of hightemperature membranes to separate CO 2 from H 2 , eventually integrated with water gas shift reactor, indicate that the IGCC conversion efficiency can be increased and investment costs reduced in comparison to physical absorption [7,29,78].…”

Section: Key Performance Datamentioning

confidence: 99%

A comparison of electricity and hydrogen production systems with CO2 capture and storage. Part A: Review and selection of promising conversion and capture technologies

Damen

Troost

Faaij

et al. 2006

Progress in Energy and Combustion Science

364

198

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We performed a consistent comparison of state-of-the-art and advanced electricity and hydrogen production technologies with CO 2 capture using coal and natural gas, inspired by the large number of studies, of which the results can in fact not be compared due to specific assumptions made. After literature review, a standardisation and selection exercise has been performed to get figures on conversion efficiency, energy production costs and CO 2 avoidance costs of different technologies, the main parameters for comparison. On the short term, electricity can be produced with 85-90% CO 2 capture by means of NGCC and PC with chemical absorption and IGCC with physical absorption at 4.7-6.9 Vct/kWh, assuming a coal and natural gas price of 1.7 and 4.7 V/GJ. CO 2 avoidance costs are between 15 and 50 V/t CO 2 for IGCC and NGCC, respectively. On the longer term, both improvements in existing conversion and capture technologies are foreseen as well as new power cycles integrating advanced turbines, fuel cells and novel (high-temperature) separation technologies. Electricity production costs might be reduced to 4.5-5.3 Vct/kWh with advanced technologies. However, no clear ranking can be made due to large uncertainties pertaining to investment and O&M costs. Hydrogen production is more attractive for low-cost CO 2 capture than electricity production. Costs of large-scale hydrogen production by means of steam methane reforming and coal gasification with CO 2 capture from the shifted syngas are estimated at 9.5 and 7 V/GJ, respectively. Advanced autothermal reforming and coal gasification deploying ion transport membranes might further reduce production costs to 8.1 and 6.4 V/GJ. Membrane reformers enable small-scale hydrogen production at nearly 17 V/GJ with relatively low-cost CO 2 capture. q

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Section: Key Performance Datamentioning

confidence: 99%

A comparison of electricity and hydrogen production systems with CO2 capture and storage. Part A: Review and selection of promising conversion and capture technologies

Damen

Troost

Faaij

et al. 2006

Progress in Energy and Combustion Science

364

198

View full text Add to dashboard Cite

show abstract

“…Another more detail techno-economic feasibility study (Bracht et al, 1997) 11 used a set of rather detail simulation and optimization tools for industrial scale membrane reactors (Koukou et al, 1998) 12 including computational fluid dynamics (CFD) along with mass and energy balances. Membrane reactors were shown to be efficient for the water gas shift reaction (WGS) in an IGCC plant with CO 2 emission control.…”

Section: Preliminary Techno-economic Analysismentioning

confidence: 99%

A New Concept for the Fabrication of Hydrogen Selective Silica Membranes

Tsapatsis¹

2009

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It was proposed to investigate a new concept for the synthesis of molecular sieve hydrogen selective membranes. This concept is based on the use of exfoliated layered zeolite precursors in coating processes to make nanocomposite films with inorganic or polymeric matrices. We discovered that creating exfoliated zeolite layers was much more difficult than anticipated because the methods originally proposed (based on existing literature reports) were not successful in providing exfoliated layers while preserving their porous structure. Although the original goals of fabricating high-selectivity-high-flux membranes that are stable under conditions present in a water-gas-shift reactor and that are able to selectively permeate hydrogen over all other components of the mixtures present in these reactors were not accomplished fully, significant progress has been made as follows:1. Proof-of-concept hydrogen-selective nanocomposite membranes have been fabricated 2. Methods to exfoliate layered zeolite precursors preserving the layer structure were identified 3. Unexpectedly, membranes exhibiting high ideal selectivity for carbon dioxide over nitrogen at room temperature were produced. The findings listed above provide confidence that the proposed novel concept can eventually be realized.

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“…The combination of reaction and separation in WGSR in IGCC systems is an attractive future option for CO 2 removal, as compared to conventional options [115]. The membrane reactor provides simultaneous removal of H 2 or CO 2 in the WGS reaction to shift the reaction equilibrium towards the complete conversion of CO.…”

Section: Hydrotalcite Membranesmentioning

confidence: 99%

“…Several researchers [115][116][117][118] have utilized the WGS membrane reactor with H 2 removal using palladium or other metallic membranes. Criscuoli et al [116] have reported a H 2 /CO 2 separation factor of 1.46 at 325 °C from the mesoporous alumina membranes, which is significantly lower than the Knudsen value (4.7), because of the presence of viscous flow at elevated temperatures.…”

Section: Hydrotalcite Membranesmentioning

confidence: 99%

A Review of Carbon Dioxide Selective Membranes: A Topical Report

Shekhawat¹,

Luebke²,

Pennline³

2003

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The atmospheric concentration of anthropogenic carbon dioxide (CO 2 ) has been increasing since the start of industrialization in the mid 19th century, and the rate is increasing. It is highly unlikely that fossil fuel combustion, the main contributor to anthropogenic CO 2 , will be replaced in the foreseeable future. Therefore, CO 2 capture and storage offer a new set of options for reducing greenhouse gas emissions, in addition to the current strategies of improving energy efficiency and increasing the use of renewable energy resources. Carbon dioxide selective membranes provide a viable energy-saving alternative for CO 2 separation, since membranes do not require any phase transformation. This review examines various CO 2 selective membranes for the separation of CO 2 and N 2 , CO 2 and CH 4 , and CO 2 and H 2 from flue or fuel gas. This review attempts to summarize recent significant advances reported in the literature about various CO 2 selective membranes, their stability, the effect of different parameters on the performance of the membrane, the structure and permeation properties relationships, and the transport mechanism applied in different CO 2 selective membranes. Finally, the future direction for CO 2 selective membranes is proposed. Hybrid organic-inorganic membranes have become an expanding field of research, as the introduction of organic molecules can improve the characteristics of a matrix. Hydrotalcite-type materials, perovskite-type oxides, lithium zirconate, and lithium silicate are also suggested as candidate materials for high temperature CO 2 selective membranes.

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Water gas shift membrane reactor for CO2 control in IGCC systems: techno-economic feasibility study

Cited by 111 publications

References 4 publications

A comparison of electricity and hydrogen production systems with CO2 capture and storage. Part A: Review and selection of promising conversion and capture technologies

A comparison of electricity and hydrogen production systems with CO2 capture and storage. Part A: Review and selection of promising conversion and capture technologies

A New Concept for the Fabrication of Hydrogen Selective Silica Membranes

A Review of Carbon Dioxide Selective Membranes: A Topical Report

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