Linde Aktiengesellschaft

Basf Se Corporation

Basf Se (Isenbruck Bösl Hörschler Llp)

Ulrike Wenning

Jan Pablo Josch

Hendrik Reyneke

Christine Toegel

Anton Wellenhofer

Heinz Boelt

Christian Walsdorff

Karl-Heinz Hofmann

Philipp Grüne

Regina Benfer

Oliver Hammen

Maximilian Vicari

Paul Leitgeb

Steffen Rissel

Hans-Jörg Zander

Ragavendra Prasad Balegedde Ramachandran

Nicole Schödel

Franz Beran

Andre Biegner

Wolfgang Schmehl

Karl Baur

Werner Leitmayr

Georgios Karanikoulis

Hans-Peter Langebach

Hartmut Neumann

Hans-joerg Zander

Wibke Korn

Philipp Gruene

Gregor Bloch

Rainer Eckrich

Gergor Bloch

Rainer Rahm

Stephan Deublein

Claudia Mossbacher

Martin Gembala

Nicole SCHÖDEL

The invention relates to a method for producing butadiene from n-butenes having the steps:

Method for preparing 1,3-butadiene from N-butenes by oxidative dehydrogeneation

The invention relates to a process for producing butadiene from n-butenes which comprises the steps of:

Process for preparing 1,3-butadiene from n-butenes by oxidative dehydrogenation

Method for preparing 1,3-butadiene from n-butenes by oxidative dehydrogenation

A process for preparing butadiene from n-butenes, comprising the steps of:

The invention relates to a process for preparing butadiene from n-butenes, comprising the steps of:

Process for preparing 1,3-butadiene from N-butenes by oxidative dehydrogenation

A method and device for the catalytic decomposition of laughing gas in a laughing-gas-bearing gas. The method includes diluting the laughing-gas-bearing gas with a diluting gas, while forming a laughing-gas-bearing charge gas. The laughing-gas bearing charge gas is passed through a heat-exchange step where heat exchange occurs with an exhaust. A heating step occurs for occasional heating of the laughing-gas-bearing charge gas in a fixed-bed reactor for catalytic decomposition of the laughing gas. In some embodiments the diluting gas is dried, and at least a part of the exhaust from the catalytic decomposition of the laughing gas is mixed with the laughing-gas-bearing charge gas upstream of the catalytic decomposition of the laughing gas.

Process and device for decomposing laughing gas

A device and method for the decomposition of laughing gas including a gas inlet for supplying a laughing-gas-bearing gas; a first heat-exchanger for the exchange of heat between an exhaust and the laughing-gas-bearing gas; a heating device for occasional heating of the laughing-gas-bearing gas and a fixed-bed reactor in which a catalyst is included in order to decompose the laughing gas. The device also includes a gas outlet, through which exhaust leaving the fixed-bed reactor can be taken away through the heat exchanger. The device may be used to implement a method where the catalyst for decomposition of laughing gas is maintained at temperatures below 800&#xb0; C. and in which the fixed-bed reactor is arranged as an adiabatic reactor.

Apparatus and process for decomposing dinitrogen monoxide in an adiabatic fixed bed reactor

A process for separating hydrogen from a gas flow having an oxygen constituent and including predominantly hydrogen, nitrogen, oxygen, carbon dioxide, carbon monoxide, methane and/or other hydrocarbons, as well as a device for conducting the process, is disclosed. The gas flow undergoes a process to thermally convert oxygen prior to the pressure swing adsorption process.

Process and device for separating hydrogen from gas flows by a pressure swing adsorption process

For selectively removing nitrogen oxides from a carrier gas that contains hydrocarbons, the nitrogen oxides are removed by chemisorption on metal oxides, without the occurrence of undesirable secondary reactions. The metal oxides are preferably formed from metals of the 6th to 8th subgroups, whereby manganese dioxide (MnO.sub.2,) is especially preferred as a metal oxide. The process can be conducted with one or more reactor beds, which preferably operate at 10 to 40.degree. C. and are regenerated with nitrogen at a temperature of 130 to 170.degree. C. By removing nitrogen oxides from an olefin-rich gas, for example from the waste gas of an FCC unit, the resultant gas can then be fed to a cryogenic olefin extraction stage without danger of explosion. Such a waste gas contains unsaturated hydrocarbons, hydrogen, carbon monoxide, and oxygen, the oxygen having a concentration preferably between 100 and 5000 mol ppm.

Removal of nitrogen oxides from gases

Growing community of inventors

Pullach, Germany

Ulrike Wenning