Isothermal chemical reactor

B - Operations – Transporting – 01 – J

Patent

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Details

B01J 8/02 (2006.01) B01J 19/24 (2006.01)

Patent

CA 2628696

The present invention concerns an isothermal reactor (1) comprising a substantially cylindrical shell (2) , at least one catalytic bed (10) supported in the shell (2) and at least one heat exchange unit (13) supported in the bed (10), the heat exchange unit (13) comprising a plurality of exchangers (14) substantially box shaped, of essentially elongated rectangular and flattened structure, each of the exchangers (14) having opposite long sides (14a) parallel to the cylindrical shell (2) axis and opposite short sides (14b, 14c) extended perpendicularly with respect to the shell axis and comprising furthermore an inner chamber (18) through which a heat exchange operating fluid in intended to flow, wherein at least one exchanger (14) of such at least one heat exchange unit (13) is internally equipped with a plurality of separation baffles (19) extended from a short side (14b or 14c) of the exchanger to the opposite short side (14c or 14b) and in a predetermined spaced relationship with respect to the latter, defining in the inner chamber (18) a substantially zigzag fluid path having alternating ascending and descending portions.

La présente invention concerne un réacteur isotherme (1) comprenant une enveloppe sensiblement cylindrique (2), au moins un banc catalytique (10) supporté dans l~enveloppe (2) et au moins une unité d'échange thermique (13) supportée dans le banc (10), l~unité d~échange thermique (13) comprenant une pluralité d~échangeurs (14) sensiblement en forme de boîte, de structure aplatie et rectangulaire sensiblement allongée, chacun des échangeurs (14) présentant de longs côtés opposés (14a) parallèles à l~axe (2) de l~enveloppe cylindrique et des côtés courts opposés (14b, 14c) s~étendant perpendiculairement par rapport à l~axe de l~enveloppe et comprenant en outre une chambre interne (18) à travers laquelle un fluide de commande d~échange thermique doit s~écouler, au moins un échangeur (14) de ladite ou lesdites unités d~échange thermique (13) est équipé en interne d~une pluralité de chicanes de séparation (19) s~étendant depuis un côté court (14b ou 14c) de l~échangeur vers le côté court opposé (14c ou 14b) et dans une relation d~espacement prédéterminée par rapport à celui-ci, définissant dans la chambre interne (18) un circuit de fluide sensiblement en zigzag présentant des parties alternées ascendantes et descendantes.

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