Methods for producing alkenes

The hydrogenation of alkenes using a palladium-supported activated carbon catalyst addresses inefficiencies in existing methods, achieving high conversion and selectivity for hydrogenated alkenes applicable in various industrial applications.

JP7744588B2Active Publication Date: 2025-09-26DAIKIN INDUSTRIES LTD
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Patent Information

Application Number
JP2023085252
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-05-24
Publication Date
2025-09-26
Estimated Expiration
2041-07-15

AI Technical Summary

Technical Problem

Existing methods for producing hydrogenated alkenes are inefficient and lack high selectivity in hydrogen substitution reactions.

Method used

A process involving the hydrogenation of alkenes containing halogen atoms using a palladium-supported activated carbon catalyst in a gas phase reaction, with specific conditions for temperature, pressure, and catalyst composition to enhance conversion and selectivity.

Benefits of technology

The process achieves high conversion rates and selectivity in producing hydrogenated alkenes, suitable for use as etching gases, refrigerants, heat transfer media, and building blocks for organic synthesis.

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Abstract

To produce a hydrogenated alkene by way of hydrogen substitution.SOLUTION: An alkene production method includes a step in which a hydrogenation reaction is performed in the presence of an activated carbon catalyst supporting a precious metal or a noble metal.SELECTED DRAWING: None
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