Sorption-enhanced hydrogen production for pre-combustion CO2 capture: Thermodynamic analysis and experimental results

Cobden, P.D.; Beurden, P. van; Reijers, Hendricus Th. J.; Elzinga, Gerard D.; Kluiters, Steven C.; Dijkstra, J.W.; Jansen, D.; Brink, R.W. van den

doi:10.1016/s1750-5836(07)00021-7

Cited by 90 publications

(52 citation statements)

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“…[5][6][7] While the interaction of CO 2 with alkali-promoted alumina materials has been described at relatively low temperatures (ambient to 150°C) and ambient pressure, only scarce data are actually available on the behaviour of alkali-promoted alumina at higher pressures and temperatures. As CO 2 can be advantageously separated at or close to WaterGas Shift conditions in pre-combustion carbon capture, [8][9][10] a thorough understanding of the sorbent material rearrangement and chemistry under these industrially relevant conditions is essential. Information gathered from experiments under realistic pressure and temperature and gas composition may further guide research toward the development of novel smart, robust and cheap materials.…”

Section: Introductionmentioning

confidence: 99%

In Situ XRD Detection of Reversible Dawsonite Formation on Alkali Promoted Alumina: A Cheap Sorbent for CO₂ Capture

et al. 2010

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Alkali-promoted aluminas are inexpensive and robust materials with significant basicity that allow CO 2 uptake at relatively high temperature and pressure. In situ XRD experiments show that bulk crystalline carbonate K-Dawsonite [KAlCO 3 (OH) 2 ] phase is formed on such materials under relatively high pressure of an equimolar mixture of CO 2 and steam (total pressure of 10 bar) and at temperatures up to 300°C. In parallel, typical needle-shaped Dawsonite crystallites are observed by SEM after exposure to similar conditions. Furthermore, the in-situ experiments show that the car-

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Section: Introductionmentioning

confidence: 99%

In Situ XRD Detection of Reversible Dawsonite Formation on Alkali Promoted Alumina: A Cheap Sorbent for CO₂ Capture

et al. 2010

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“…3 Well-to-tank life cycle energy demand for the production of CTL and GTL fuels; we identify here the component processes and their respective energy demands process of the steam methane reforming (SMR). There, a highly active catalyst is essential; however, the mass and heat transfer of the process itself are highly significant components of the resulting energy balance and resulting CO 2 emissions [15,37,59,[61][62][63][64]. Notwithstanding these major issues, SMR has been extensively used in the chemical and energy industries for several decades now, even though the responsible catalyst active site is routinely less than 10 %.…”

Section: The Catalyst Sensitivity Index: a Comparison Of Fluid Catalymentioning

confidence: 99%

The Catalyst Selectivity Index (CSI): A Framework and Metric to Assess the Impact of Catalyst Efficiency Enhancements upon Energy and CO2 Footprints

et al. 2015

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Heterogeneous catalysts are not only a venerable part of our chemical and industrial heritage, but they also occupy a pivotal, central role in the advancement of modern chemistry, chemical processes and chemical technologies. The broad field of catalysis has also emerged as a critical, enabling science and technology in the modern development of ''Green Chemistry'', with the avowed aim of achieving green and sustainable processes. Thus a widely utilized metric, the environmental E factor-characterizing the waste-to-product ratio for a chemical industrial processpermits one to assess the potential deleterious environmental impact of an entire chemical process in terms of excessive solvent usage. As the many (and entirely reasonable) societal pressures grow, requiring chemists and chemical engineers not only to develop manufacturing processes using new sources of energy, but also to decrease the energy/carbon footprint of existing chemical processes, these issues become ever more pressing. On that road to a green and more sustainable future for chemistry and energy, we note that, as far as we are aware, little effort has been directed towards a direct evaluation of the quantitative impacts that advances or improvements in a catalyst's performance or efficiency would have on the overall energy or carbon (CO 2 ) footprint balance and corresponding greenhouse gas (GHG) emissions of chemical processes and manufacturing technologies. Therefore, this present research was motivated by the premise that the sustainability impact of advances in catalysis science and technology, especially heterogeneous catalysis-the core of large-scale manufacturing processes-must move from a qualitative to a more quantitative form of assessment. This, then, is the exciting challenge of developing a new paradigm for catalysis science which embodies-in a truly quantitative form-its impact on sustainability in chemical, industrial processes. Towards that goal, we present here the concept, definition, design and development of what we term the Catalyst Sensitivity Index (CSI) to provide a measurable index as to how efficiency or performance enhancements of a heterogeneous catalyst will directly impact upon the fossil energy consumption and GHG emissions balance across several prototypical fuel production and conversion technologies, e.g. hydrocarbon fuels synthesized using algae-tobiodiesel, algae-to-jet biofuel, coal-to-liquid and gas-to-liquid processes, together with fuel upgrading processes using fluidized catalytic cracking of heavy oil, hydrocracking of heavy oil and also the production of hydrogen from steam methane reforming. Traditionally, the performance of a catalyst is defined by a combination of its activity or efficiency (its turnover frequency), its selectivity and stability (its turnover number), all of which are direct manifestations of the intrinsic physicochemical properties of the heterogeneous catalyst itself under specific working conditions. We will, of course, retain these definitions of the catalytic process, ...

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“…Hydrotalcite-like compounds (HTC) [10,[19][20][21][22][23][24][25][26][27], and lithium zirconate (LZC) [28][29][30][31][32][33][34][35] solids have received considerable attention during the recent years as promising CO 2 sorbents out a family that also includes carbon-based adsorbents, metal-oxide sorbents, and zeolites. The proper sorbent materials must have (i) high adsorption capacity, (ii) adequate adsorption/desorption kinetics, (iii) high selectivity for CO 2 , (iv) adequate mechanical strength, and (v) stable capacity versus adsorption/desorption cycles in operation.…”

Section: Nomenclaturementioning

confidence: 99%

Reactor modeling of sorption-enhanced autothermal reforming of methane. Part I: Performance study of hydrotalcite and lithium zirconate-based processes

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et al. 2011

Chemical Engineering Journal

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Sorption-enhanced hydrogen production for pre-combustion CO2 capture: Thermodynamic analysis and experimental results

Cited by 90 publications

References 5 publications

In Situ XRD Detection of Reversible Dawsonite Formation on Alkali Promoted Alumina: A Cheap Sorbent for CO₂ Capture

In Situ XRD Detection of Reversible Dawsonite Formation on Alkali Promoted Alumina: A Cheap Sorbent for CO₂ Capture

The Catalyst Selectivity Index (CSI): A Framework and Metric to Assess the Impact of Catalyst Efficiency Enhancements upon Energy and CO2 Footprints

Reactor modeling of sorption-enhanced autothermal reforming of methane. Part I: Performance study of hydrotalcite and lithium zirconate-based processes

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Sorption-enhanced hydrogen production for pre-combustion CO2 capture: Thermodynamic analysis and experimental results

Cited by 90 publications

References 5 publications

In Situ XRD Detection of Reversible Dawsonite Formation on Alkali Promoted Alumina: A Cheap Sorbent for CO2 Capture

In Situ XRD Detection of Reversible Dawsonite Formation on Alkali Promoted Alumina: A Cheap Sorbent for CO2 Capture

The Catalyst Selectivity Index (CSI): A Framework and Metric to Assess the Impact of Catalyst Efficiency Enhancements upon Energy and CO2 Footprints

Reactor modeling of sorption-enhanced autothermal reforming of methane. Part I: Performance study of hydrotalcite and lithium zirconate-based processes

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Product

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In Situ XRD Detection of Reversible Dawsonite Formation on Alkali Promoted Alumina: A Cheap Sorbent for CO₂ Capture

In Situ XRD Detection of Reversible Dawsonite Formation on Alkali Promoted Alumina: A Cheap Sorbent for CO₂ Capture