Device for nitrogen and hydrogen treatment with the aid of a...

B - Operations – Transporting – 01 – J

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B01J 8/04 (2006.01) B01J 8/00 (2006.01) C01C 1/04 (2006.01)

Patent

CA 1303824

ABSTRACT Apparatus for the catalytic treatment of nitrogen and hydrogen. The invention relates to a device for the catalytic treatment of nitrogen and hydrogen treatment, using at least one concentric heat exchanger mounted axially in a pressure vessel and surrounded by a catalyst bed, the device being equipped with a centre inlet dome for feeding gas to the tube bundle of the heat exchanger and with a deflector so designed that the gas leaving the heat exchanger tubes flows radially through the first' catalyst bed from the external to the internal side. This configuration particularly facilitates the control of the temperatures and the gas streams prior to their entry into the catalyst beds and it permits an optimization of erect- ion and maintenance. The aim of the invention is achieved by discharge pipe mounted in the centre of the first tubular heat exchanger and used for the gases originating from the first catalyst bed and ascending along the heat exchanger tubes, said pipe having upper collecting openings for this gas.

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