Sorption-enhanced steam reforming of methane in a fluidized bed reactor with dolomite as<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si18.gif" display="inline" overflow="scroll"><mml:msub><mml:mrow><mml:mi>CO</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>-acceptor

Johnsen, Kim; Ryu, Ho Jung; Grace, John R.; Lim, C. Jim

doi:10.1016/j.ces.2005.08.022

Cited by 281 publications

(124 citation statements)

References 17 publications

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“…The time for breakthrough decreased with the increase of gas superficial velocities. The simulated results are in agreement with the experimental results reported in the literatures (Han andHarrison 1994 andJohnsen et al, 2006a).…”

Section: Resultssupporting

confidence: 82%

“…The time for breakthrough decreased with the increase of the gas superficial velocity. It is in agreement with the experimental results of Johnsen et al (2006a).…”

Section: Sorbent Capacity and Breakthroughsupporting

confidence: 92%

“…The hydrogen fraction dropped to about 0.75 mol/mol, which is near the equilibrium of SMR. Three stages exist, two stable stages of pre-breakthrough and postbreakthrough, and one rapidly changed stage of breakthrough, which is similar to the experimental results of Han and Harrison (1994) and Johnsen et al (2006a).…”

Section: Sorbent Capacity and Breakthroughsupporting

confidence: 77%

“…The effects of inlet gas superficial velocity and steam-to-carbon ratio (mass ratio of steam to methane in the inlet gas phase) on the reactions were studied. The simulated results are in agreement with the experimental results presented by Johnsen et al (2006a, Chem Eng Sci 61:1195-1202. …”

supporting

confidence: 81%

“…Their approach may reduce the CO 2 emissions from coal-and petroleum coke-fired fluidized bed combustors by up to 85%. Johnsen et al (2006a) conducted an experimental investigation on reforming and sorbent calcination in cyclic operation in a bubbling fluidized bed reactor. Wang et al (2010) proposed a method for determination of the long-term sorbent activity and greatly reduced the experimental work for evaluation of hydrogen production and CaO-based CO 2 capture sorbent development.…”

Section: Introductionmentioning

confidence: 99%

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Numerical study of hydrogen production by the sorption-enhanced steam methane reforming process with online CO2 capture as operated in fluidized bed reactors

Wang

Chao

Jakobsen

2011

Clean Techn Environ Policy

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A three-dimensional (3D) Eulerian two-fluid model with an in-house code was developed to simulate the gas-particle two-phase flow in the fluidized bed reactors. The CO 2 capture with Ca-based sorbents in the steam methane reforming (SMR) process was studied with such model combined with the reaction kinetics. The sorptionenhanced steam methane reforming (SE-SMR) process, i.e., the integration of the process of SMR and the adsorption of CO 2 , was carried out in a bubbling fluidized bed reactor. The very high production of hydrogen in SE-SMR was obtained compared with the standard SMR process. The hydrogen molar fraction in gas phase was near the equilibrium. The breakthrough of the sorbent and the variation of the composition in the breakthrough period were studied. The effects of inlet gas superficial velocity and steam-to-carbon ratio (mass ratio of steam to methane in the inlet gas phase) on the reactions were studied. The simulated results are in agreement with the experimental results presented by Johnsen et al. (2006a, Chem Eng Sci 61:1195-1202.

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Section: Resultssupporting

confidence: 82%

“…The time for breakthrough decreased with the increase of the gas superficial velocity. It is in agreement with the experimental results of Johnsen et al (2006a).…”

Section: Sorbent Capacity and Breakthroughsupporting

confidence: 92%