TechnipFMC has been granted a patent for a method to enhance propylene production through metathesis, utilizing isomerization of 1-butene to 2-butene. The process involves isomerizing a hydrocarbon stream and directly feeding it into a metathesis reactor, optimizing yields from C4 and C5+ olefins. GlobalData’s report on TechnipFMC gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on TechnipFMC, Water gas shift catalysts was a key innovation area identified from patents. TechnipFMC's grant share as of June 2024 was 60%. Grant share is based on the ratio of number of grants to total number of patents.
Method for producing propylene from butene and ethylene
The granted patent US12030849B2 outlines a method for producing propylene from ethylene and butene through a series of chemical processes. The method involves isomerizing a hydrocarbon stream containing n-butenes and paraffins in a separate isomerization reactor vessel under liquid phase conditions. This isomerization produces an isomerized hydrocarbon stream, which is then fed directly into a metathesis reactor vessel without prior distillation. The metathesis process utilizes a catalyst to convert the isomerized hydrocarbon stream into a product stream that includes ethylene, propylene, and various C4 and heavier olefins. The patent specifies that the isomerization reactor can be configured to either recycle butene or utilize a fresh feed stream, with specific mole ratios of 2-butene to 1-butene being maintained.
Further details of the process include the separation of ethylene from the product stream to create a recycle ethylene stream and a bottoms stream, which is subsequently fractionated to yield distinct fractions, including propylene and a butene concentrated recycle stream. The method allows for the recycling of these streams back into the process, enhancing efficiency. Additionally, the patent describes the optimization of 2-pentene content in the butene concentrated recycle stream, indicating that an increase in 2-pentene correlates with higher propylene production. The hydrocarbon stream is characterized by specific limits on butadiene and isobutylene content, ensuring the process operates within defined parameters for optimal output. Overall, the patent presents a comprehensive approach to propylene production, emphasizing the integration of isomerization and metathesis processes.
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GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
