Experimental demonstration of the reverse flow catalytic membrane reactor concept for energy efficient syngas production. Part 1: Influence of operating conditions

Smit, J.; Bekink, GJ; Annaland, van M Martin Sint; Kuipers, J.A.M.

doi:10.1016/j.ces.2006.10.009

Cited by 12 publications

(4 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the past few decades, many experimental and numerical studies have investigated the performance of small-scale fixed-bed reverse-flow reactors for performing exothermic reactions due to their potential for storing heat energy and increasing thermal efficiency, , which in turn may also promote the reaction performance. A number of these studies have focused on the chemical processes used to control air pollution, such as catalytic oxidation of methane and volatile organic compounds, − ammonia and nitrogen oxides, , and sulfur oxides. − Furthermore, the synthesis of some chemicals such as methanol, − ammonia, and hydrogen and synthesis gas − have also been investigated in these reactors.…”

Section: Introductionmentioning

confidence: 99%

“…Some of the performed experimental and theoretical studies on syngas production by catalytic partial oxidation of methane in the reverse-flow reactors have focused on investigating this process in packed-bed and membrane-assisted packed-bed reactors, ,,− and others have examined the monolithic ones. − The work of Gosiewski is one of the few published simulation studies with an emphasis on syngas production by catalytic partial oxidation of methane in a reverse-flow monolithic reactor. In this research, the performance of reverse-flow monolithic and packed-bed reactors was studied and compared during a semi-cycle of 120 s using a heterogeneous one-dimensional mathematical model.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Theoretical Investigation on Syngas Production by Catalytic Partial Oxidation of Methane in a Reverse-Flow Microchannel Monolithic Reactor

Pourghadiri,

Sari

2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

In this work, the use of a reverse-flow microchannel monolithic reactor is theoretically studied for improving the performance of syngas production by catalytic partial oxidation of methane over an Rh/Al2O3 catalyst. This helps to make a better judgment about the possibility of syngas production using this type of small-scale reactor. Imposing reverse-flow operation on catalytic microchannels creates eminent features that enable overcoming some drawbacks of technologies based on partial oxidation and increasing the reaction performance. A one-dimensional heterogeneous unsteady-state model is employed to model the reactor behavior. The full GRI 3.0 mechanism is employed to model the gas-phase reactions, and a detailed Langmuir–Hinshelwood surface mechanism is considered for catalytic reactions. The effects of feed preheat temperature, feed CH4/O2 ratio, reaction pressure, and flow switching time on methane conversion and syngas quality and yield are studied. The performance of the reverse-flow operation was also compared with the unidirectional one. The simulation results agree with the literature-reported experimental data, and the model can predict the reactor behavior well. The results show that the reverse-flow operation can significantly improve the syngas production yield and reduce the minimum preheat temperature required to light off the reactor. The maximum syngas production yield of ∼75% and H2/CO ratio of ∼2.7 are achieved at a feed CH4/O2 ratio of ∼1.6 after the cyclic steady state is established. The reverse-flow operation increases the methane conversion and syngas yield by at least 8% and 76%, respectively, compared with the unidirectional one.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Theoretical Investigation on Syngas Production by Catalytic Partial Oxidation of Methane in a Reverse-Flow Microchannel Monolithic Reactor

Pourghadiri,

Sari

2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…The reverse flow concept is mainly used in the field of reactor engineering, where Boreskov and Matros1, 2 were among the first researchers working on reverse flow reactors. Since then many scientists contributed to this field 3–5. Besides its use in reactor design, the reverse flow concept was also used in electrokinetic chromatography6 and nano‐ and ultra‐filtration 7, 8…”

Section: Introductionmentioning

confidence: 99%

“…and to study the influence of adsorbent and process parameters to improve RFA operation. Design and study of the reactor is not included since extensive studies on the reverse flow reactors are already carried out, as mentioned previously 1–5. This article proceeds with the mathematical models developed to describe reversible adsorption of the complex species.…”

Section: Introductionmentioning

confidence: 99%

Silica adsorbent design and process evaluation for recovery of homogeneous catalysts by reverse flow adsorption

Zivkovic

Haan

2008

AIChE Journal

View full text Add to dashboard Cite

in Wiley InterScience (www.interscience.wiley.com).The goal of this work is to demonstrate the stability of reverse flow adsorption process for recovery of homogeneous catalysts and to study the influence of catalyst and adsorbent properties for optimizing the RFA process operation. Data used in simulations were obtained from our previous work. Two models are developed to describe the reversible adsorption. One which describes the adsorption of the metal containing species and second model that describes adsorption of the free ligand. It is shown that stable operation is reached, where leaching of metal is prevented. The RFA process can be applied for wide ranges of the catalyst's stability constants [10 0 -10 12 (dm 3 / mol) 2 ] and it is specially applicable for the recovery of homogeneous catalysts that have a low metal concentration. Values of the adsorbent (b M ¼ 0.8, a ¼ 1850, Pe P ¼ 376.4, d p ¼ 100 lm and e b ¼ 0.5) and the column characteristics (Bo ¼ 1.74 3 10 4 and N ¼ 6.6 3 10 4 ) that provide a sharp concentration profile inside the bed are determined. Simulation of the recovery of Rh catalyst in the BASF hydroformylation process required a total adsorption bed volume of 6% of reactor volume.

show abstract

Catalytic Membrane Reactors

Soltani¹,

Sahimi²,

Tsotsis³

2013

Encyclopedia of Membrane Science and Technology

View full text Add to dashboard Cite

Membrane reactors combining reaction and membrane separation provide numerous advantages over conventional reactors, including retaining expensive catalysts, in situ purification, enhancing reaction rate, and reducing postprocessing of the reaction (by) products. In this article, two different ways were used to classify the various types of membrane reactors. One is based on whether the membrane is catalytic or noncatalytic, selective or nonselective, and whether or not a packed bed or a fluidized bed of catalysts is being used. The second classification is based on the membrane role: the extractor‐type, the distributor‐type, and the contactor‐type membrane reactors. This article presents the key features of these three types of reactors and the various classes of reactions these reactors have been applied, with emphasis on conventional (i.e., nonbiochemical) reaction systems.

show abstract

Experimental demonstration of the reverse flow catalytic membrane reactor concept for energy efficient syngas production. Part 1: Influence of operating conditions

Cited by 12 publications

References 16 publications

Theoretical Investigation on Syngas Production by Catalytic Partial Oxidation of Methane in a Reverse-Flow Microchannel Monolithic Reactor

Theoretical Investigation on Syngas Production by Catalytic Partial Oxidation of Methane in a Reverse-Flow Microchannel Monolithic Reactor

Silica adsorbent design and process evaluation for recovery of homogeneous catalysts by reverse flow adsorption

Catalytic Membrane Reactors

Contact Info

Product

Resources

About