Patent ID: 11913127
Assignee: TECHNISCHE UNIVERSITAT BERLIN
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A process for electrodicarboxylation of at least one diene, with carbon dioxide CO2 in the presence of hydrogen H2 to form at least one unsaturated dicarboxylic acid, comprising:
carrying out a reaction in a reactor, wherein the reaction is the electrodicarboxylation of the at least one diene, with the carbon dioxide CO2 in the presence of the hydrogen H2 to form the at least one unsaturated dicarboxylic acid, wherein:
at least one cathode as working electrode for a cathodic activation of the carbon dioxide CO2, and
at least one anode as counter electrode for a anodic oxidation of the hydrogen H2,

wherein:
a volumetric ratio of the hydrogen H2 to the carbon dioxide CO2 is between 1:1 and 1:3;
a total pressure pg in the reactor is between 2 and 4 MPa, wherein the carbon dioxide is present in the reactor with a partial pressure p0,CO2 of between 2 and 4 MPa and the hydrogen H2 is present in the reactor with a partial pressure p0,H2 of between 0.75 and 2 MPa; and
a mean current density j is between 5 and 15 mA/cm2.