Maire Tecnimont has patented a urea production process and plant utilizing a unique thermal stripper method. The process involves separating the reaction mixture into two streams, with one going through the thermal stripper and the other bypassing it to a medium pressure recovery section. GlobalData’s report on Maire Tecnimont 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 Maire Tecnimont, was a key innovation area identified from patents. Maire Tecnimont's grant share as of May 2024 was 70%. Grant share is based on the ratio of number of grants to total number of patents.
Urea production process with thermal stripper and medium pressure recovery
A recently granted patent (Publication Number: US11958792B2) discloses a novel urea production process conducted within a specialized urea production plant. The plant includes a high-pressure (HP) synthesis section and two medium-pressure (MP) recovery sections. The process involves separating a reaction mixture from the HP reaction zone into two streams, both containing urea. One stream, rich in ammonia, is directed to a thermal stripper to obtain stripped urea solution, while the other stream is sent to the second MP recovery section. The innovative design of the plant allows for efficient separation and recovery of urea components based on their gravimetric density and ammonia concentration.
Furthermore, the patented process includes degassing the second stream to determine its N/C ratio before bypassing the thermal stripper and entering the second MP recovery section. The first MP recovery section decomposes the stripped urea solution to produce a urea solution and a gas stream, which are further processed to separate carbamate and ammonia components. The HP reaction zone operates at high pressure, with a specific N/C ratio range, ensuring optimal urea production efficiency. The HP thermal stripper is equipped with bimetallic tubes for enhanced performance. These unique features of the patented urea production process aim to streamline production, improve yield, and enhance overall operational efficiency in urea manufacturing plants.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. 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.
