Petroleo Brasileiro has been granted a patent for a selective glycerol oxidation process that utilizes an iron oxide catalyst. The method involves combining glycerol and an oxidizing agent at temperatures between 100 to 350°C, primarily producing formic acid as the main product. GlobalData’s report on Petroleo Brasileiro 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 Petroleo Brasileiro, Microscale biofuel reactors was a key innovation area identified from patents. Petroleo Brasileiro's grant share as of July 2024 was 46%. Grant share is based on the ratio of number of grants to total number of patents.
Selective glycerol oxidation process to produce formic acid
The granted patent US12071400B2 outlines a glycerol selective oxidation process aimed at producing formic acid as the primary product. The process involves feeding a glycerol-containing raw material and an oxidizing agent into a reaction vessel that contains an iron oxide-containing catalyst. The reaction occurs at temperatures ranging from 100 to 350°C, resulting in an oxidized mixture where formic acid constitutes 40 to 90% by weight of the oxidation products. The oxidizing agents specified include hydrogen peroxide, oxygen, and ozone, with hydrogen peroxide solutions being particularly emphasized. The process can be conducted continuously, utilizing various reactor types such as fixed bed, fluidized bed, or mud bed reactors, and may include a pre-treatment step for the glycerol-containing raw material.
Additional claims detail the specific conditions and components of the process, including the volume ratio of glycerol to oxidizing agent, the concentration of hydrogen peroxide, and the iron content in the catalyst. The patent also describes potential product recovery methods, such as distillation and condensation, and the use of inert solid diluents to enhance the catalyst's effectiveness. Overall, the patent presents a comprehensive method for efficiently converting glycerol into formic acid, highlighting the importance of catalyst composition and reaction conditions in optimizing yield.
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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.
