MUMBAI, India, July 25 -- Intellectual Property India has published a patent application (202547068135 A) filed by Sabic Global Technologies B. V., Bergen op Zoom, Netherlands, on July 17, for 'method for purifying linear alpha olefins with stage-heated distillation column.'

Inventor(s) include Huckman, Michael Edward; and Merenov, Andrei.

The application for the patent was published on July 25, under issue no. 30/2025.

According to the abstract released by the Intellectual Property India: "The disclosure provides a method of purifying a linear alpha olefin product that includes feeding a linear alpha olefin feed stream comprising the linear alpha olefin product and ethylene into a feed stage of a distillation column, the distillation column having a plurality of stacked stages positioned between an overhead outlet and a bottoms reboiler including a stripping section and a rectifying section; feeding an aliphatic paraffin hydrocarbon solvent to the rectifying section of the distillation column to absorb linear alpha olefin; adding heat to at least one of said plurality of stacked stages in the stripping section of the distillation column between the feed stage and the bottoms reboiler; withdrawing an overhead stream comprising ethylene from the overhead outlet; and withdrawing a bottoms stream from the distillation column comprising the linear alpha olefin product."

The patent application was internationally filed on Dec. 27, 2023, under International application No.PCT/IB2023/063292.

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