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Advances in the partial oxidation of methane to Sy thesis Gas

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Journal of Natural Gas Chemistry 2004年第4期13卷 191-203页

作者： QuanliZhu XutaoZhao YouquanDeng PetrochemicalResearchInstituteofLanzhouPetrochemicalCompany ChinaNationalPetroleumCorporationLanzhou730060China StateKeyLaboratoryforOxoSynthesisandSelectiveoxidation LanzhouInstituteofChemicalPhysicsChineseAcademyofSciencesLanzhou730000China

The conversion and utilization of natural gas is of significant meaning to the national economy, even to the everyday life of people. However, it has not become a popular industrial process as expected due to the technical obstacles. In the past decades, much investigation into the conversion of methane, predominant component of natural gas, has been carried out. Among the possible routes, of methane conversion, the partial oxidation of methane to synthesis gas is considered as an effective and economically feasible one. In this article, a brief review of recent studies on the mechanism of the partial oxidation of methane to synthesis gas together with catalyst development is wherein presented.

关键词： methane partial oxidation synthesis gas catalyst reaction mechanism

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partial oxidation OF methane TO FORMALDEHYDE──CATALYTIC PERFORMANCE OF SILICA-SUPPORTED METAL OXID(S)

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Journal of Energy Chemistry 1997年第4期 322-328页

作者： ZHONG Lin FENG Jian QIU Fa-Li(Laboratory of Natural Gas ChemistryChengdu Institute of Organic Chemistry The Chinese Academy of SciencesChengdu, Sichuan 610041)

The partial oxidation of methane to formaldehyde was studiedover different silica-supported metal oxide catalysts. The results show thatMoO3/SiO2 is the most selective catalyst among those studied, P2O5 exhibita Promoting effect to the silica supported transition metal oxide catalysts forthe formation of formaldehyde and a small amount of MoO3 can improve theselective properties of these catalysts.

关键词： methane partial oxidation formaldehyde transition metal oxide P2O5

methane oxidation by green oxidant to methanol over zeolite-based catalysts

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Chinese Chemical Letters 2022年第4期33卷 1757-1762页

作者： Sufeng Cao Ke Zhang Brian Hanna Essam Al-Sayed Aramco Services Company Aramco Research Centre-Boston400 Technology SquareCambridgeMA 02139United States

To reduce greenhouse gas emission from oil and gas production,it is essential to better convert methane to useful chemicals(rather) than to flare it.Conversion of methane to liquid oxygenates(mainly methanol) has attracted extensive attention and countless efforts have been made;however,running this reaction in a green,efficient,and practical way has remained elusive.The novel catalyst and oxidants play a critical role in activating methane and converting it to oxygenates(methanol).In this review,the work of commonly used oxidants for methane partial oxidation have been summarized,in which,earth abundant oxidants,O;and H;O are promising.Moreover,H;or CO can activate O;to produce H;O;that catalyzes methane partial oxidation more efficiently and selectively than O;or H;O.Therefore,the work of using reducing agent,such as CO and H;have been reviewed,focusing on rational catalyst design that features multifunction(H;O;production and CH;activation).The novel catalyst design has advanced this reaction towards practicality with green oxidants and H;using zeolites-based catalyst.Environmentally friendly zeolite preparation methods and novel two-dimensional(2 D) zeolites that can reduce waste,improve synthesis and catalytical performance substantially are also reviewed in this work to provide insights for a more comprehensive approach to meet the environment protection needs.

关键词： methane partial oxidation methane to methanol Zeolite Catalyst Zeolite green synthesis Solvent free OSDA free 2D zeolites

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Research progress on methane conversion coupling photocatalysis and thermocatalysis

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Carbon Energy 2021年第4期3卷 519-540页

作者： Zengzan Zhu Wenyi Guo Ying Zhang Chengsi Pan Jing Xu Yongfa Zhu Yang Lou Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxiJiangsuChina International Joint Research Center for Photoresponsive Molecules and Materials Jiangnan UniversityWuxiJiangsuChina School of Food Science and Technology Jiangnan UniversityWuxiJiangsuChina Department of Chemistry Tsinghua UniversityBeijingChina

Conversion of methane into value-added chemicals is of significance for methane utilization and industrial demand of primary chemical products.The barrier associated with the nonpolar structure of methane and the high bond energy C-H bond(4.57 eV)makes it difficult to realize methane conversion and activation under mild conditions.The photothermal synergetic strategy by combining photon energy and thermo energy provides an advanced philosophy to achieve efficient methane conversion.In this review,we overview the current pioneering studies of photothermal methane indirect conversion and present the methane direct conversion by the way of photocatalysis and thermocatalysis to provide a fundamental understanding of methane activation.Finally,we end this review with a discussion on the remaining challenges and perspectives of methane direct conversion over single-atom catalysts via photothermal synergetic strategy.

关键词： methane conversion methane partial oxidation methane reforming photothermal catalysis