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Network of Reactors for Alkane Oxidative Coupling

Ref-Nr: TA-10003/TUB


A new feeding policy for packed bed membrane reactors to increase their efficiency especially when used for the oxidative coupling of alkenes, like methane. The feeding policy according to this technology can either be used in single reactors or reactor networks.


Due to the large amounts of natural gas deposits and the steadily increasing prices of oil and its derivatives, there has long been a desire to develop and implement a direct process for producing higher olefins from naturally occurring gases.

The OCM enables the catalytic and homogeneous conversion of methane into valuable products, mostly olefins such as ethene, and can be implemented by many different methods.

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The oxidative transformation of alkanes leads, besides the production of the corresponding conversion products such as higher alkanes and Alkenes, also to a production of CO2, which drastically reduces its process efficiency.

Thus, the provision of higher alkane products with a high yield and a high selectivity is still a challenge.


The technology presented here comprises a new feeding policy to increase the efficiency of packed bed membrane reactors, especially when they are used for the oxidative coupling of alkenes, for instance methane.

Besides the problems already mentioned above, the conversion of methane into higher hydrocarbons, such as ethane and ethylene, provides an additional challenge, as the activation of methane is difficult due to its thermo-dynamic stability.

The feeding policy of this technology can be used in single reactors and in reactor networks. In conventional packed bed membrane reactors, a high amount of oxygen is inserted into the outer shell, and only a small amount of methane is applied to the inner reactor core.

With the feeding policy proposed by this invention, it is possible to pass a high amount of methane and nitrogen into the outer shell, and only a little amount of oxygen into the core. This is achieved by separating the feed before entering the reactor. In this way, it is possible to achieve a higher concentration oxygen in the feed without influencing the conversion or the yield negatively.


  • Works under a very wide range of operating conditions concerning temperature, pressure, oxygen concentration and alkane concentration
  • Simultaneously influencing different parameters
  • 3-time higher methane converting rate compared to conventional systems


This invention allows the oxidative coupling of methane as well as the heterogeneous catalysis as used in the chemical industry.


Chances for Collaboration:

  • R&D Cooperation
  • Patent Purchase
  • Licensing


Technische Universität Berlin

Jeanne Trommer
+49 30 314 24472
Fraunhoferstr. 33-36
10587 Berlin




  • DE anhängig
  • EP anhängig


feeding policy, methane, OCM, oxygen supply, plant design, reactor

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