Hydrogenation of acetylene at transient conditions in the presence of olefins and carbon monoxide over palladium/alumina

Cider, L.; Schoeoen, Nils Herman

doi:10.1021/ie00055a006

Cited by 17 publications

(14 citation statements)

References 25 publications

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“…Here we used a fast FTIR spectrometer with a small volume gas cell that leads to very fast analysis times. Alternatively, a multiloop sample valve can be used combined with a regular GC analysis for experiments on a shorter timescale [11] …”

Section: Discussionmentioning

confidence: 99%

“…Different experimental approaches to study transient kinetics have been developed. Transient experiments such as TAP, step‐response and SSITKA give more detailed insights into reaction mechanisms than steady‐state experimentation [3–12] . SSITKA experiments offer the advantage of containing dynamic information while the catalyst remains at steady‐state [5] .…”

Section: Introductionmentioning

confidence: 99%

“…Another possibility is to operate the reactor by concentration modulation around the steady‐state. These types of experiments can be used for model discrimination and kinetic studies [7–12] . Additional information can be obtained by varying the frequency and performing a frequency analysis.…”

Section: Introductionmentioning

confidence: 99%

“…The data were compared to those of Borodziński and Cybulski, [16] and contrary to their study, an effect of the ethylene partial pressure on the acetylene hydrogenation rate was observed, indicating that a single site is sufficient. Cider and Schöön have studied the hydrogenation of acetylene in presence of carbon monoxide by transient pulse method [11,17] . They revisited the two‐site model and concluded that there exists only one type of active sites for the reaction but two types of sites for acetylene adsorption during the cross‐desorption of carbon monoxide.…”

Section: Introductionmentioning

confidence: 99%

“…Transient experiments such as TAP, step-response and SSITKA give more detailed insights into reaction mechanisms than steady-state experimentation. [3][4][5][6][7][8][9][10][11][12] SSITKA experiments offer the advantage of containing dynamic information while the catalyst remains at steady-state. [5] Another possibility is to operate the reactor by concentration modulation around the steady-state.…”

Section: Introductionmentioning

confidence: 99%

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Microkinetic Modeling of Acetylene Hydrogenation Under Periodic Reactor Operation

et al. 2022

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Dynamic reactor operations will gain interest with the increase of intermittent electricity from renewable sources. Periodic operation of catalytic reactors can also be used for kinetic studies with better parameter estimation than steady-state operation. This methodology is exemplified for the case of acetylene hydrogenation over Pd/α-Al 2 O 3 using small amplitude flow oscillations. It allows the evaluation of several elementary kinetic parameters from one set of dynamic data for a reaction mechanism based on a single catalytic site. The optimized transient model is able to reproduce the time-evolution of the reactant and product molar fractions at the outlet of a fixed bed operated with modulations of different amplitudes and frequencies. It further shows that the acetylene conversion is controlled by two steps, the hydrogen adsorption step and the hydrogenation of the surface vinyl intermediate into adsorbed ethylene.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microkinetic Modeling of Acetylene Hydrogenation Under Periodic Reactor Operation

et al. 2022

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Ethylene

Sundaram¹,

Shreehan²,

Olszewski³

2000

Kirk-Othmer Encyclopedia of Chemical Technology

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In this comprehensive discussion of the production of and uses for ethylene, the topics covered include the properties of ethylene; industrial production; storage, shipping, handling; and economics. Extensive coverage of the commercial production of ethylene via thermal cracking is provided. The reaction is discussed as well as the methods employed to predict the feedstock conversion. Product distributions are given for a variety of feedstocks. A description of the industrial furnaces available is given, as well as a typical process description and process flow diagram. Information is provided on coke deposition during the cracking process, giving the methods used to inhibit coke production and methods used to remove coke deposited. Recent improvements in the design of ethylene plants plus possible other routes to produce ethylene are presented.

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Ethylene

Sundaram¹,

Shreehan²,

Olszewski³

2001

Kirk-Othmer Encyclopedia of Chemical Technology

View full text Add to dashboard Cite

In this comprehensive discussion of the production of and uses for ethylene, the topics covered include the properties of ethylene; industrial production; storage, shipping, handling; and economics. Extensive coverage of the commercial production of ethylene via thermal cracking is provided. The reaction is discussed as well as the methods employed to predict the feedstock conversion. Product distributions are given for a variety of feedstocks. A description of the industrial furnaces available is given, as well as a typical process description and process flow diagram. Information is provided on coke deposition during the cracking process, giving the methods used to inhibit coke production and methods used to remove coke deposited. Improvements in the design of ethylene plants plus possible other routes to produce ethylene are presented. Almost all ethylene is consumed as a feedstock for manufacturing other petrochemicals.

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Hydrogenation of acetylene at transient conditions in the presence of olefins and carbon monoxide over palladium/alumina

Cited by 17 publications

References 25 publications

Microkinetic Modeling of Acetylene Hydrogenation Under Periodic Reactor Operation

Microkinetic Modeling of Acetylene Hydrogenation Under Periodic Reactor Operation

Ethylene

Ethylene

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