ADIABATICALLY CONDUCTED PROCESS FOR THE PRODUCTION OF 1,3-BUTADIENE FROM MIXTURES OF ETHANOL AND ACETALDEHYDE WITH CATALYST REGENERATION

The invention relates to a process for the production of 1,3-butadiene from ethanol and acetaldehyde with catalyst regeneration comprising a) reacting a feed comprising ethanol and acetaldehyde in a reactor having at least one adiabatic reaction zone comprising a supported catalyst, and b) regenerat...

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Bibliographic Details
Main Authors SKOWRONEK, Szymon, KRYCA, Joanna, JANKOWIAK, Ewelina, SITKO, Magdalena
Format Patent
LanguageEnglish
French
German
Published 07.02.2024
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:The invention relates to a process for the production of 1,3-butadiene from ethanol and acetaldehyde with catalyst regeneration comprising a) reacting a feed comprising ethanol and acetaldehyde in a reactor having at least one adiabatic reaction zone comprising a supported catalyst, and b) regenerating the supported catalyst. Regeneration stage b) comprises stripping step i. at a temperature of 300 to 400° C., ii. first and second combustion steps ii. and iii. at a temperature of 350 to 400° ° C. and 400 to 550° C. respectively, and stripping step iv. at a temperature of 550° C. to 300° ° C. The gas flows to each of regeneration steps b)i. to b)iv. are first heated and then contact the supported catalyst.
Bibliography:Application Number: EP20220715640