The Experts below are selected from a list of 318 Experts worldwide ranked by ideXlab platform

Yi Tang - One of the best experts on this subject based on the ideXlab platform.

  • recent advances of Pore System construction in zeolite catalyzed chemical industry processes
    Chemical Society Reviews, 2015
    Co-Authors: Yangdong Wang, Weimin Yang, Yi Tang
    Abstract:

    The kaleidoscopic applications of zeolite catalysts (zeo-catalysts) in petrochemical processes has been considered as one of the major accomplishments in recent decades. About twenty types of zeolite have been industrially applied so far, and their versatile porous architectures have contributed their most essential features to affect the catalytic efficiency. This review depicts the evolution of Pore models in zeolite catalysts accompanied by the increase in industrial and environmental demands. The indispensable roles of modulating Pore models are outlined for zeo-catalysts for the enhancement of their catalytic performances in various industrial processes. The zeolites and related industrial processes discussed range from the uni-modal microPore System of zeolite Y (12-ring microPore, 12-R) in fluid catalytic cracking (FCC), zeolite ZSM-5 (10-R) in xylene isomerization and SAPO-34 (8-R) in olefin production to the multi-modal microPore System of MCM-22 (10-R and 12-R pocket) in aromatic alkylation and the hierarchical Pores in FCC and catalytic cracking of C4 olefins. The rational construction of Pore models, especially hierarchical features, is highlighted with a careful classification from an industrial perspective accompanied by a detailed analysis of the theoretical mechanisms.

  • Recent advances of Pore System construction in zeolite-catalyzed chemical industry processes
    Chemical Society Reviews, 2015
    Co-Authors: Jing Shi, Yangdong Wang, Weimin Yang, Yi Tang, Zaiku Xie
    Abstract:

    Recent advances in zeolite-catalyzed industrial processes have been comprehensively reviewed with a careful classification and a detailed theoretical analysis.The kaleidoscopic applications of zeolite catalysts (zeo-catalysts) in petrochemical processes has been considered as one of the major accomplishments in recent decades. About twenty types of zeolite have been industrially applied so far, and their versatile porous architectures have contributed their most essential features to affect the catalytic efficiency. This review depicts the evolution of Pore models in zeolite catalysts accompanied by the increase in industrial and environmental demands. The indispensable roles of modulating Pore models are outlined for zeo-catalysts for the enhancement of their catalytic performances in various industrial processes. The zeolites and related industrial processes discussed range from the uni-modal microPore System of zeolite Y (12-ring microPore, 12-R) in fluid catalytic cracking (FCC), zeolite ZSM-5 (10-R) in xylene isomerization and SAPO-34 (8-R) in olefin production to the multi-modal microPore System of MCM-22 (10-R and 12-R pocket) in aromatic alkylation and the hierarchical Pores in FCC and catalytic cracking of C4 olefins. The rational construction of Pore models, especially hierarchical features, is highlighted with a careful classification from an industrial perspective accompanied by a detailed analysis of the theoretical mechanisms.

Yangdong Wang - One of the best experts on this subject based on the ideXlab platform.

  • recent advances of Pore System construction in zeolite catalyzed chemical industry processes
    Chemical Society Reviews, 2015
    Co-Authors: Yangdong Wang, Weimin Yang, Yi Tang
    Abstract:

    The kaleidoscopic applications of zeolite catalysts (zeo-catalysts) in petrochemical processes has been considered as one of the major accomplishments in recent decades. About twenty types of zeolite have been industrially applied so far, and their versatile porous architectures have contributed their most essential features to affect the catalytic efficiency. This review depicts the evolution of Pore models in zeolite catalysts accompanied by the increase in industrial and environmental demands. The indispensable roles of modulating Pore models are outlined for zeo-catalysts for the enhancement of their catalytic performances in various industrial processes. The zeolites and related industrial processes discussed range from the uni-modal microPore System of zeolite Y (12-ring microPore, 12-R) in fluid catalytic cracking (FCC), zeolite ZSM-5 (10-R) in xylene isomerization and SAPO-34 (8-R) in olefin production to the multi-modal microPore System of MCM-22 (10-R and 12-R pocket) in aromatic alkylation and the hierarchical Pores in FCC and catalytic cracking of C4 olefins. The rational construction of Pore models, especially hierarchical features, is highlighted with a careful classification from an industrial perspective accompanied by a detailed analysis of the theoretical mechanisms.

  • Recent advances of Pore System construction in zeolite-catalyzed chemical industry processes
    Chemical Society Reviews, 2015
    Co-Authors: Jing Shi, Yangdong Wang, Weimin Yang, Yi Tang, Zaiku Xie
    Abstract:

    Recent advances in zeolite-catalyzed industrial processes have been comprehensively reviewed with a careful classification and a detailed theoretical analysis.The kaleidoscopic applications of zeolite catalysts (zeo-catalysts) in petrochemical processes has been considered as one of the major accomplishments in recent decades. About twenty types of zeolite have been industrially applied so far, and their versatile porous architectures have contributed their most essential features to affect the catalytic efficiency. This review depicts the evolution of Pore models in zeolite catalysts accompanied by the increase in industrial and environmental demands. The indispensable roles of modulating Pore models are outlined for zeo-catalysts for the enhancement of their catalytic performances in various industrial processes. The zeolites and related industrial processes discussed range from the uni-modal microPore System of zeolite Y (12-ring microPore, 12-R) in fluid catalytic cracking (FCC), zeolite ZSM-5 (10-R) in xylene isomerization and SAPO-34 (8-R) in olefin production to the multi-modal microPore System of MCM-22 (10-R and 12-R pocket) in aromatic alkylation and the hierarchical Pores in FCC and catalytic cracking of C4 olefins. The rational construction of Pore models, especially hierarchical features, is highlighted with a careful classification from an industrial perspective accompanied by a detailed analysis of the theoretical mechanisms.

Zaiku Xie - One of the best experts on this subject based on the ideXlab platform.

  • Recent advances of Pore System construction in zeolite-catalyzed chemical industry processes
    Chemical Society Reviews, 2015
    Co-Authors: Jing Shi, Yangdong Wang, Weimin Yang, Yi Tang, Zaiku Xie
    Abstract:

    Recent advances in zeolite-catalyzed industrial processes have been comprehensively reviewed with a careful classification and a detailed theoretical analysis.The kaleidoscopic applications of zeolite catalysts (zeo-catalysts) in petrochemical processes has been considered as one of the major accomplishments in recent decades. About twenty types of zeolite have been industrially applied so far, and their versatile porous architectures have contributed their most essential features to affect the catalytic efficiency. This review depicts the evolution of Pore models in zeolite catalysts accompanied by the increase in industrial and environmental demands. The indispensable roles of modulating Pore models are outlined for zeo-catalysts for the enhancement of their catalytic performances in various industrial processes. The zeolites and related industrial processes discussed range from the uni-modal microPore System of zeolite Y (12-ring microPore, 12-R) in fluid catalytic cracking (FCC), zeolite ZSM-5 (10-R) in xylene isomerization and SAPO-34 (8-R) in olefin production to the multi-modal microPore System of MCM-22 (10-R and 12-R pocket) in aromatic alkylation and the hierarchical Pores in FCC and catalytic cracking of C4 olefins. The rational construction of Pore models, especially hierarchical features, is highlighted with a careful classification from an industrial perspective accompanied by a detailed analysis of the theoretical mechanisms.

Weimin Yang - One of the best experts on this subject based on the ideXlab platform.

  • recent advances of Pore System construction in zeolite catalyzed chemical industry processes
    Chemical Society Reviews, 2015
    Co-Authors: Yangdong Wang, Weimin Yang, Yi Tang
    Abstract:

    The kaleidoscopic applications of zeolite catalysts (zeo-catalysts) in petrochemical processes has been considered as one of the major accomplishments in recent decades. About twenty types of zeolite have been industrially applied so far, and their versatile porous architectures have contributed their most essential features to affect the catalytic efficiency. This review depicts the evolution of Pore models in zeolite catalysts accompanied by the increase in industrial and environmental demands. The indispensable roles of modulating Pore models are outlined for zeo-catalysts for the enhancement of their catalytic performances in various industrial processes. The zeolites and related industrial processes discussed range from the uni-modal microPore System of zeolite Y (12-ring microPore, 12-R) in fluid catalytic cracking (FCC), zeolite ZSM-5 (10-R) in xylene isomerization and SAPO-34 (8-R) in olefin production to the multi-modal microPore System of MCM-22 (10-R and 12-R pocket) in aromatic alkylation and the hierarchical Pores in FCC and catalytic cracking of C4 olefins. The rational construction of Pore models, especially hierarchical features, is highlighted with a careful classification from an industrial perspective accompanied by a detailed analysis of the theoretical mechanisms.

  • Recent advances of Pore System construction in zeolite-catalyzed chemical industry processes
    Chemical Society Reviews, 2015
    Co-Authors: Jing Shi, Yangdong Wang, Weimin Yang, Yi Tang, Zaiku Xie
    Abstract:

    Recent advances in zeolite-catalyzed industrial processes have been comprehensively reviewed with a careful classification and a detailed theoretical analysis.The kaleidoscopic applications of zeolite catalysts (zeo-catalysts) in petrochemical processes has been considered as one of the major accomplishments in recent decades. About twenty types of zeolite have been industrially applied so far, and their versatile porous architectures have contributed their most essential features to affect the catalytic efficiency. This review depicts the evolution of Pore models in zeolite catalysts accompanied by the increase in industrial and environmental demands. The indispensable roles of modulating Pore models are outlined for zeo-catalysts for the enhancement of their catalytic performances in various industrial processes. The zeolites and related industrial processes discussed range from the uni-modal microPore System of zeolite Y (12-ring microPore, 12-R) in fluid catalytic cracking (FCC), zeolite ZSM-5 (10-R) in xylene isomerization and SAPO-34 (8-R) in olefin production to the multi-modal microPore System of MCM-22 (10-R and 12-R pocket) in aromatic alkylation and the hierarchical Pores in FCC and catalytic cracking of C4 olefins. The rational construction of Pore models, especially hierarchical features, is highlighted with a careful classification from an industrial perspective accompanied by a detailed analysis of the theoretical mechanisms.

Sylvie Recous - One of the best experts on this subject based on the ideXlab platform.

  • Spatial location of carbon decomposition in the soil Pore System
    European Journal of Soil Science, 2004
    Co-Authors: D.t Strong, H. De Wever, Roel Merckx, Sylvie Recous
    Abstract:

    Summary We sought to examine the distribution of carbon (C) decomposition within the framework of the soil Pore System. Soils were sampled from a transect having a natural gradient in Pore-size distribution. After the addition of labelled wheat straw (13C) the repacked soil columns were incubated (25°C) at soil water matric potentials of either −75 kPa or −5 kPa and for either 4 or 90 days. Pore-size distribution was determined for each soil column after incubation and soils were then analysed for soluble C, label-derived residual C, label-derived and native biomass C, nematode abundance, and ergosterol concentration as an indicator of fungal biomass. Overall, the data suggested that Pore-size distribution and its interaction with soil water give rise to a highly stratified biogeography of organisms through the Pore System. This results in different rates of decomposition in Pores of different size. Added plant material seemed to decompose most rapidly in soils with a relatively large volume of Pores with neck diameters c. 15–60 µm and most slowly in soils with large volumes of Pores with neck diameters

  • spatial location of carbon decomposition in the soil Pore System
    European Journal of Soil Science, 2004
    Co-Authors: D.t Strong, H. De Wever, Roel Merckx, Sylvie Recous
    Abstract:

    Summary We sought to examine the distribution of carbon (C) decomposition within the framework of the soil Pore System. Soils were sampled from a transect having a natural gradient in Pore-size distribution. After the addition of labelled wheat straw (13C) the repacked soil columns were incubated (25°C) at soil water matric potentials of either −75 kPa or −5 kPa and for either 4 or 90 days. Pore-size distribution was determined for each soil column after incubation and soils were then analysed for soluble C, label-derived residual C, label-derived and native biomass C, nematode abundance, and ergosterol concentration as an indicator of fungal biomass. Overall, the data suggested that Pore-size distribution and its interaction with soil water give rise to a highly stratified biogeography of organisms through the Pore System. This results in different rates of decomposition in Pores of different size. Added plant material seemed to decompose most rapidly in soils with a relatively large volume of Pores with neck diameters c. 15–60 µm and most slowly in soils with large volumes of Pores with neck diameters < 4 µm. Regression analysis suggested that at matric potentials of both −75 kPa and −5 kPa the fastest decomposition of organic substrate occurred close to the gas–water interface. This analysis also implied that slower rates of decomposition occur in the Pore class 60–300 µm. Correlations between the mass of soil biota and the Pore volume of each Pore class point to the importance of fungi and possibly nematodes in the rapid decomposition of C in the Pores c. 15–60 µm during the early stages of decomposition.