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Multi-tube reactor for carrying exothermic or endothermic gas phase reaction

A technology of tube bundle reactor and gas phase reaction, applied in the direction of heat exchanger type, heat exchanger shell, indirect heat exchanger, etc., to achieve uniform temperature distribution, improve heat transfer coefficient, and increase flow rate

Inactive Publication Date: 2006-08-16
MAN DWE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] However, said known measures are not sufficient to avoid large temperature differences in the cross-section, i.e. to eliminate the inhomogeneity of the temperature profile transverse to the longitudinal direction of the reaction tube as indicated above in EP0700714A1 and EP0700893A1 when the circulation volume is small

Method used

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  • Multi-tube reactor for carrying exothermic or endothermic gas phase reaction
  • Multi-tube reactor for carrying exothermic or endothermic gas phase reaction
  • Multi-tube reactor for carrying exothermic or endothermic gas phase reaction

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Embodiment Construction

[0051] The exemplary embodiment of a tube bundle reactor 1 according to the invention shown in the drawing has a tube bundle 2 comprising catalyst-filled reaction tubes 3 which are surrounded by a reactor jacket 4 . The gas inlet-side end 5 of the reaction tube 3 passes through a first tube bottom 6 and is fixed in said tube bottom in a gas- and liquid-tight manner. A gas inlet port 7 covers the first tube bottom 6 or the gas inlet-side end 5 of the reaction tube 3 . The gas outlet-side end 8 of the reaction tube 3 passes through a second tube bottom 9 and is held in said tube bottom in a gas- and liquid-tight manner. A gas outlet cap 10 covers the second tube bottom 9 or the gas outlet-side end 8 of the reaction tube 3 .

[0052] The reaction tube 3 passes through a preheating zone 11 connected to the first tube bottom 6 in the upper part of the figure, and then passes through a reaction zone 12 connected to the preheating zone 11 . In the reaction zone 12 the reaction tube...

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Abstract

A tube bundle reactor for exothermic or endothermic gas phase reactions with catalyst-filled tubes has fixtures (34) to improve heat transfer from a circulating fluid heat carrier which are arranged in the tubes longitudinally and / or circumferentially each with a clearance spacing (35) of size at most such that the ratio of the diameter of a circle drawn through the radially outermost tube (3a) to each clearance spacing (35) is >= 13. Independent claims are also included for plant containing such a reactor in which (A) a static mixer is included between the coolant and / or heating device inlet and the inlet to reactor to make the heat carrier entry temperature uniform; or (B) cooling and / or heating devices in the bypass to the reactor (1) which are used only for starting up or shutting down the reactor are shut down in normal operation to prevent a discharge.

Description

technical field [0001] The invention relates to a tube bundle reactor for carrying out exothermic or endothermic gas phase reactions, which has a tube bundle comprising reaction tubes filled with catalyst through which a reaction gas flows through a reaction zone, in which A liquid heat transfer medium flows around the reaction tubes in the reaction zone, and a plurality of flow inserts are arranged around each reaction tube in the reaction zone to improve heat transfer. [0002] The invention also relates to a tube bundle reactor for carrying out exothermic or endothermic gas phase reactions, which has a tube bundle surrounded by a reactor shell comprising reaction tubes filled with catalyst, one end of which is closed by a gas inlet covered, the other end of which is covered by a gas outlet mask, and the reaction tube passes through a preheating zone near the gas inlet mask, and then passes through a reaction zone, wherein the preheating zone and the adjacent reaction zone a...

Claims

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Application Information

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IPC IPC(8): B01J8/06
CPCB01J2208/00522B01J2208/00221F28F2009/224F28F1/36F28F1/34F28F2009/228F28F9/0265B01J2208/00849F28F1/14F28F1/24B01J8/067B01J2208/025F28D7/163B01J2208/0053F28D2021/0052B01J2208/00513F28D7/1607F28F1/124
Inventor M·莱尔
Owner MAN DWE
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