One-step conversion of crude oil to light olefins using a multi-zone reactor

Alabdullah, Mohammed A.; Rodriguez‐Gomez, Alberto; Shoinkhorova, Tuiana; Dikhtiarenko, Alla; Chowdhury, Abhishek Dutta; Hita, Idoia; Kulkarni, Shekhar R.; Vittenet, Jullian; Sarathy, S. Mani; Castaño, Pedro; Bendjeriou‐Sedjerari, Anissa; Abou‐Hamad, Edy; Zhang, Wen; Ali, Ola S.; Morales-Osorio, Isidoro; Xu, Wei; Gascón, Jorge

doi:10.1038/s41929-021-00580-7

Cited by 65 publications

(41 citation statements)

References 35 publications

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“…37,38 The resulting advantages of spray-dried catalyst vary from case to case, like the enhanced activity reported for the hydrogenation of toluene, 39 the extended lifetime reported for the methanol-toaromatics 40 or the excellent attrition resistance reported for fluidized-bed reactions such as methanol-to-olefins and crudeto-chemicals. 41,42 In the present study, we have studied the potential benefits of including SiC and using spray drying in the formulation/ engineering of catalytic particles for oxydative couplign of methane. For such a purpose, we have prepared a set of catalysts including a Mn−Na−W/SiO 2 −SiC catalyst using spray drying, and a Mn−Na−W/SiO 2 catalyst using impregnation.…”

Section: Introductionmentioning

confidence: 99%

“…and physical properties of the precursor solution (i.e., density, viscosity, concentration, etc. ). , The resulting advantages of spray-dried catalyst vary from case to case, like the enhanced activity reported for the hydrogenation of toluene, the extended lifetime reported for the methanol-to-aromatics or the excellent attrition resistance reported for fluidized-bed reactions such as methanol-to-olefins and crude-to-chemicals. , …”

Section: Introductionmentioning

confidence: 99%

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Engineering Thermally Resistant Catalytic Particles for Oxidative Coupling of Methane Using Spray-Drying and Incorporating SiC

Lezcano

Velisoju

Kulkarni

et al. 2021

Ind. Eng. Chem. Res.

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Oxidative coupling of methane (OCM) is a promising single-step route to convert natural gas to high-valued chemicals. It is generally agreed that Mn–Na–W catalysts offer a balanced conversion–selectivity trade-off. The present work outlines a novel SiC–SiO2 support synthesized by spray drying to extend the lifetime of the catalyst. Incorporating SiC into the support enables the exothermic reaction heat to be effectively dissipated, avoiding hotspots and thermal shocks, and increasing the thermal resistance. The spray drying technique yields particles with a consistent distribution of SiC inside the particles, amplifying the thermal resistance of the catalyst. Our kinetic results show that the spray dried catalyst with SiC has significantly higher stability at high C2 selectivity compared to the benchmark SiO2-supported catalyst prepared by wetness impregnation. This result is due to (1) the more uniform distribution of active phases and SiC provided by the spray drying methodology and (2) the greater thermal resistance provided by SiC, which avoids thermal shocking and stabilizes the Mn–Na–W phases during the long-term (70 h) stability test for OCM.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Engineering Thermally Resistant Catalytic Particles for Oxidative Coupling of Methane Using Spray-Drying and Incorporating SiC

Lezcano

Velisoju

Kulkarni

et al. 2021

Ind. Eng. Chem. Res.

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“…Recently, a multizone fluidized bed (MZFB) reactor has been designed for deep cracking to efficiently convert crude oil to light olefins in one step [13] . This MZFB reactor is composed of a regeneration/stripping zone, a reaction zone, and an evaporation/condensation zone.…”

Section: Efficient Utilization Of Fossil Resourcesmentioning

confidence: 99%

Green Carbon Science: Efficient Carbon Resource Processing, Utilization, and Recycling towards Carbon Neutrality

Sun

Han

2022

Angewandte Chemie

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Green carbon science is defined as the “study and optimization of the transformation of carbon‐containing compounds and the relevant processes involved in the entire carbon cycle from carbon resource processing, carbon energy utilization, CO2 fixation, and carbon recycling to utilize carbon resources efficiently and minimize the net CO2 emission.”[1] Green carbon science is related closely to carbon neutrality, and relevant fields have developed quickly in the last decade. In this Minireview, we propose the concept of carbon energy index, and the recent progress in petroleum refining, and the production of liquid fuels, chemicals, and materials using coal, methane, CO2, biomass, and waste plastics is highlighted in combination with green carbon science. An outlook for these important fields is provided in the final section.

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“…The discovery of new heterogeneous catalysts requires creative approaches in materials synthesis, 3 but likewise the application of a broad parameter field in catalyst testing. 4,5 The process conditions have a strong influence on the formation of the catalyst and on the structure of the reaction network. Depending on the reaction parameters, different active phases can be generated.…”

Section: Mainmentioning

confidence: 99%

Green synthesis of propylene oxide directly from propane

Kube

Dong

Omojola

et al. 2022

Preprint

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The chemical industry faces the challenge of bringing emissions of climate-damaging CO2 to zero. However, the synthesis of important intermediates, such as olefins or epoxides, is still associated with the release of large amounts of greenhouse gases. This is due to both a high energy input for many process steps and insufficient selectivity of the underlying catalysed reactions. Surprisingly, we found that the oxidation of propane at elevated temperature over inert materials such as boron nitride and silicon dioxide leads to the formation of significant amounts of propylene oxide in a mixture with propylene, with unexpectedly small amounts of CO2 being formed. Fragile products are usually synthesised on highly specific surfaces, which is associated with strong interactions. We demonstrate that rapid reaction over unspecific interfaces entails im-portant consequences for the synthesis of products prone to overoxidation. Process simulations reveal that the combined synthesis of these two important chemical building blocks is technologically feasible. Our discovery leads the ways towards an environmentally friendly production of propylene oxide and propylene in one step. A complex catalyst development is not necessary.

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One-step conversion of crude oil to light olefins using a multi-zone reactor

Cited by 65 publications

References 35 publications

Engineering Thermally Resistant Catalytic Particles for Oxidative Coupling of Methane Using Spray-Drying and Incorporating SiC

Engineering Thermally Resistant Catalytic Particles for Oxidative Coupling of Methane Using Spray-Drying and Incorporating SiC

Green Carbon Science: Efficient Carbon Resource Processing, Utilization, and Recycling towards Carbon Neutrality

Green synthesis of propylene oxide directly from propane

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