Significance of by‐products in maleic anhydride kinetics

Müller, Mauritio; Kutscherauer, Martin; Mestl, Gerhard; Turek, Thomas

doi:10.1002/cite.202055393

Cited by 1 publication

(4 citation statements)

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“…In order to evaluate the products such as MAn, acetic acid, water, and acrylic acid under steadystate conditions, a diverse range of process parameters including temperatures, feed flow rates and concentrations, and atmospheric pressure are defined. 58 On the contrary, under dynamic or unsteady-state conditions, experiments are conducted to obtain catalyst's transient response in relation to average time in which reactant and product concentrations are varying. 59 In addition, during these steady-state or dynamics conditions, the final products of oxidation also contain intermediates and/or side products that are required to be simplified.…”

Section: Reaction Kineticsmentioning

confidence: 99%

“…The VPO catalysis kinetics data based on reactions involving n-butane, 1,3butadiene, and 1-butene showed that n-butane dehydrogenation at the initial stage is the rate-limiting step. 58 Hence, it can be inferred that n-butane activation over the surface of the catalyst is found to be the rate-limiting step. This basic kinetic understanding helps in designing the innovative catalyst system to explore the alkanes functionalization.…”

Section: Reaction Kineticsmentioning

confidence: 99%

“…Various kinetic models have been reported by many researchers for n -butane selective oxidation, and both steady-state and dynamic or unsteady-state kinetic models have been proposed. In order to evaluate the products such as MAn, acetic acid, water, and acrylic acid under steady-state conditions, a diverse range of process parameters including temperatures, feed flow rates and concentrations, and atmospheric pressure are defined . On the contrary, under dynamic or unsteady-state conditions, experiments are conducted to obtain catalyst’s transient response in relation to average time in which reactant and product concentrations are varying .…”

Section: Reaction Kineticsmentioning

confidence: 99%

“…The resulting kinetic expressions facilitate not only in finding the rate-limiting step but also in evaluating the products selectivity during oxidation. The VPO catalysis kinetics data based on reactions involving n -butane, 1,3-butadiene, and 1-butene showed that n -butane dehydrogenation at the initial stage is the rate-limiting step . Hence, it can be inferred that n -butane activation over the surface of the catalyst is found to be the rate-limiting step.…”

Section: Reaction Kineticsmentioning

confidence: 99%

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n-Butane Oxidation to Maleic Anhydride: Reaction Mechanism and Kinetics Over VPO Catalyst

Hashim,

Khan,

Hantoko

et al. 2024

Ind. Eng. Chem. Res.

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An increase in zero carbon footprint awareness leading to addressing the hot issue of global warming has led to steps taken in an attempt to reduce atmospheric carbon emissions. Industrial development during the past centuries has made a major contribution in releasing massive amounts of carbon-based gaseous products into the atmosphere. Among these gases, low-carbon alkanes, such as nbutane, are released from refinery processes. Recent years have witnessed the conversion of n-butane to high-value chemicals, such as maleic anhydride, using vanadium-based catalysts. The catalyst complex comprising vanadium phosphorus oxide is found naturally in approximately 15 different phases that are a function of intrinsic properties such as active sites and catalyst structure. The conversion of nbutane to maleic anhydride is a multistep process that involves n-butane oxidation to maleic anhydride along with undesired byproducts. Hence, a thorough investigation of the reaction mechanism becomes vital. Moreover, with the advent of computational tools such as density functional theory, scientists have been able to predict the performance of the catalyst, while with the aid of Aspen simulation, the process can also be modeled. Later these computational calculations are linked with various kinetic models to evaluate the performance of the catalysts. This review is focused on elaborating all the above-mentioned different aspects.

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Section: Reaction Kineticsmentioning

confidence: 99%

Section: Reaction Kineticsmentioning

confidence: 99%

Section: Reaction Kineticsmentioning

confidence: 99%

Section: Reaction Kineticsmentioning

confidence: 99%

See 2 more Smart Citations