MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202617084356 A) filed by Metso Metals Oy on July 09, 2026, for Process And Plant For Producing A Sulfur Trioxide-Containing Gas.
Inventors include Kazdal, Timur; Mohsler, Stefan; and Bruner, Stefan.
The application for the patent was published on August 14, 2026, under issue no. 33/2026.
Abstract: The invention is directed to a process for producing a sulfur trioxide-containing gas stream. A sulfur dioxide and oxygen containing gas are introduced in at least one converter stage to produce a sulfur trioxide-containing gas stream in a heterogeneous catalysation. In doing so a partial stream of a sulfur trioxide containing gas stream produced in the first or a subsequent converter stage is branched off as a recycling stream and recycled to be part of a feed gas of the first converter stage. It is essential that he sulfur dioxide containing gas and added oxygen are introduced as a motive medium in an ejector via an motive medium inlet such that it sucks in and accelerates the recycling stream through a sucking medium inlet as a sucking medium to produce a feed gas streaming through a discharge outlet for the converter stage at a set pressure range.
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