caa a22 4500 475844823 CHVBK 20180406123911.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1023/A:1019164001135 doi (NATIONALLICENCE)springer-10.1023/A:1019164001135 The partial gas‐phase hydrogenation of benzene to cyclohexene on supported and coated ruthenium catalysts [Elektronische Daten] [Enrico Dietzsch, Peter Claus, Dieter Hönicke] The conversion of benzene to useful products such as cyclohexene is of industrial interest because of the expected surplus of benzene due to its substitution in gasoline by other non‐polluting components in the next years. Therefore, the partial gas‐phase hydrogenation of benzene to cyclohexene at atmospheric pressure was performed in order to develop catalysts as an alternative to those used in liquid‐phase hydrogenation. Two types of ruthenium‐containing catalysts were investigated, viz. supported catalysts with different support materials and coated catalysts with electrolytically formed alumina as support. In order to yield the desired cyclohexene the presence of methanol as a reaction modifier was necessary in the gas phase during the reaction. The hydrogenation on supported Ru catalysts gave selectivities of about 35%, while on coated Ru catalysts selectivities up to 45% were obtained at conversion degrees of 5%. Improved catalyst performance, especially higher selectivity and yield, was obtained at increased partial pressure of methanol and hydrogen and by addition of copper as second metal in the oxide layer of the coated catalysts. Kluwer Academic Publishers, 2000 partial hydrogenation nationallicence benzene nationallicence cyclohexene nationallicence ruthenium catalysts nationallicence coated catalysts nationallicence anodic oxidation nationallicence reaction modifier nationallicence Dietzsch Enrico Division of Industrial Chemistry, University of Technology Chemnitz, D‐09107, Chemnitz, Germany aut Claus Peter Department of Catalysis, Institute for Applied Chemistry, Rudower Chaussee 5, D‐12484, Berlin, Germany aut Hönicke Dieter Division of Industrial Chemistry, University of Technology Chemnitz, D‐09107, Chemnitz, Germany aut Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 10/1-2(2000-03-01), 99-106 1022-5528 10:1-2<99 2000 10 11244 https://doi.org/10.1023/A:1019164001135 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1019164001135 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dietzsch Enrico Division of Industrial Chemistry, University of Technology Chemnitz, D‐09107, Chemnitz, Germany aut NATIONALLICENCE 700 1- Claus Peter Department of Catalysis, Institute for Applied Chemistry, Rudower Chaussee 5, D‐12484, Berlin, Germany aut NATIONALLICENCE 700 1- Hönicke Dieter Division of Industrial Chemistry, University of Technology Chemnitz, D‐09107, Chemnitz, Germany aut NATIONALLICENCE 773 0- Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 10/1-2(2000-03-01), 99-106 1022-5528 10:1-2<99 2000 10 11244 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer