Effects of Product Separation on the Kinetics and Selectivity of Oxidative Coupling

Hall, Richard B.; Myers, G. Rodney

doi:10.1007/978-1-4615-1807-5_13

Cited by 4 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These approaches range from the selective removal of the C 2 products using various adsorption and membrane separation Ž schemes Omata et al, 1989;Tonkovich et al, 1993;Jiang et . al., 1994;Hall and Myers, 1995;Cordi et al, 1997a,b to controlled oxygen addition strategies that lessen product degra-Ž dation Choudhary et al, 1989;Schweer et al, 1994;Do et . al., 1995 .…”

Section: Introductionmentioning

confidence: 99%

Role of distributed oxygen addition and product removal in the oxidative coupling of methane

Androulakis¹,

Reyes²

1999

AIChE Journal

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Role of distributed oxygen addition and product removal in the oxidative coupling of methane

Androulakis¹,

Reyes²

1999

AIChE Journal

View full text Add to dashboard Cite

show abstract

“…2,3 Separative chemical reactors, in which reaction and separation are integrated, have also been applied to this problem. 4,5 This paper reports recent work 6 on the further development of a separative reactor, the simulated countercurrent moving bed chromatographic reactor (SCMCR), for OCM.…”

Section: Introductionmentioning

confidence: 99%

“…These yields are insufficient for a commercially viable process. To improve the overall yield, a number of recycle/separation arrangements have been reported. , Separative chemical reactors, in which reaction and separation are integrated, have also been applied to this problem. , This paper reports recent work on the further development of a separative reactor, the simulated countercurrent moving bed chromatographic reactor (SCMCR), for OCM.…”

Section: Introductionmentioning

confidence: 99%

Further Studies of the Oxidative Coupling of Methane to Ethane and Ethylene in a Simulated Countercurrent Moving Bed Chromatographic Reactor

Bjorklund

Kruglov

Carr

2001

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

An experimental and mathematical modeling study of a simulated countercurrent moving bed chromatographic reactor for oxidative coupling of methane to ethane and ethylene is reported. The experiments were done in a laboratory-scale three-section simulated moving bed reactor. Operating conditions were deduced from independent experiments in a microcatalytic fixed-bed reactor and from adsorber dynamics studies. With a YBa2Zr3O9.5 catalyst and activated charcoal adsorbent, the sum of the ethane and ethylene yields at optimum simulated moving bed operating conditions was 45%. Numerical simulations of the reactor performance were done and compared with experimental results.

show abstract

“…An alternative way to increase the C 2 yield of the OCM process is to separate C 2 either by a cryogenic method or by adsorption and recycle the unconverted methane (Sofranko and Jubin, 1989;Edwards et al, 1992;Matherne and Culp, 1992). Hall and Myers (1994) studied the effects of product separation on the kinetics and selectivity of oxidative coupling of methane. By using a simulated countercurrent moving-bed chromatographic reactor (SCMBCR), Tonkovich et al (1993) reported 50% C 2 yield with Sm 2 O 3 as catalyst.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Optimization of Cross-Flow Reactors for Oxidative Coupling of Methane

Dixon

Moser

et al. 1997

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

A cross-flow reactor model with distributed feed of oxygen and product removal for the oxidative coupling of methane (OCM) was developed, and comparison studies were carried out to analyze the different performances of reactors with different configurations in terms of contact time, temperature, pressure, dilution ratio, and permeability. For each of the reactor configurations considered, the overall methane to oxygen feed ratio was optimized such that the C 2 yield at the reactor outlet was maximized. Modeling results showed that distributed feed oxygen could give rise to much higher C 2 yields than the cofeed reactor, as long as the ratio of catalyst loading to initial methane flow rate was sufficiently high. Although reactors with optimally distributed oxygen feed give higher C 2 yields than evenly distributed ones, the improvement is not significant. In the case of a two-membrane reactor, where one membrane is used for oxygen feed and the other for C 2 product removal, higher C 2 yields could be obtained than in a single membrane reactor with distributed oxygen feed. However, if the membrane for C 2 product removal is also permeable to other species as well as to C 2 products, low permeability of methane is critical to the achievement of high C 2 yield.

show abstract

Effects of Product Separation on the Kinetics and Selectivity of Oxidative Coupling

Cited by 4 publications

References 12 publications

Role of distributed oxygen addition and product removal in the oxidative coupling of methane

Role of distributed oxygen addition and product removal in the oxidative coupling of methane

Further Studies of the Oxidative Coupling of Methane to Ethane and Ethylene in a Simulated Countercurrent Moving Bed Chromatographic Reactor

Analysis and Optimization of Cross-Flow Reactors for Oxidative Coupling of Methane

Contact Info

Product

Resources

About