Method, tube bundle reactor and reactor system for carrying out catalytic gas phase reactions
A tube bundle reactor and phase reaction technology, which is applied in chemical methods, chemical instruments and methods, and gas fuels for reacting gaseous media with gaseous media.
Active Publication Date: 2021-01-08
MAN ENERGY SOLUTIONS SA
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Problems solved by technology
This configuration particularly enables optimum reaction control due to the stepped reaction gas supply and optimum temperature control due to independent heat transfer medium circulation, but if only small amounts of heat are generated in the second heat transfer medium zone, this will be very expensive
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Embodiment Construction
[0094] figure 1 A boiling water reactor is shown as an exemplary embodiment of a tube bundle reactor according to the present invention.
[0095] The tube bundle reactor 12 comprises a tube bundle 13 having a plurality of catalyst-filled reaction tubes 14 extending vertically between an upper tube base 15 and a lower tube base 16 and surrounded by a cylindrical reactor jacket 17 . The two ends of the reaction tube 14 are welded to corresponding tube sockets 15, 16 in a gas-tight manner. During operation, reaction tubes 14 have reaction gas 11 flowing through them—from top to bottom in the exemplary embodiment shown—and are cooled by a heat transfer medium 18 . In this case, the two sockets 15, 16 together with the jacket 17 form a heat transfer medium space 18A, into which the heat transfer medium 18 enters through the inlet line 52 in the lower end region of the reactor jacket 17, and the heat transfer medium The medium 18 is discharged from this space via an outlet line 53...
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Abstract
In a method for carrying out catalytic gas phase reactions having the steps: a) providing a tube bundle reactor which has a bundle of reaction tubes that are filled with a catalyst charge and are cooled by a heat transfer medium, b) conveying a reaction gas through the catalyst charge, the reaction gas flowing into each reaction tube being divided into at least two part flows which are introducedin the axial direction of the reaction tube at different points in the catalyst charge, the catalyst charge has at least two catalyst layers of different activity, wherein the activity of the first catalyst layer, in the flow direction of the reaction gas, is lower than the activity of the at least one other catalyst layer and in step b) a first part flow is introduced into the first catalyst layer and each further part flow is introduced past the first catalyst layer into the at least one further catalyst layer. Also proposed is a tube bundle reactor for carrying out the method and a reactorsystem having a tube bundle reactor of this kind.
Description
technical field [0001] The invention relates to a method and a tube bundle reactor for carrying out catalytic gas phase reactions, and to a reactor system for carrying out catalytic gas phase reactions. In particular, the invention relates to performing exothermic catalytic gas phase reactions with different temperature maxima. An example of such a reaction is methanation. Background technique [0002] Against the backdrop of limited natural gas reserves, there is growing interest in the production of natural gas alternatives. This gas, named "SNG" - "substitute natural gas" or "synthetic natural gas" or "alternative gas" basically contains methane and a small part of unreacted gas and other gases, which must comply with the regulations of the corresponding gas network Feed specification (if SNG is to be injected into it). [0003] SNG can be aided by synthesis gas (CO and / or CO 2 、H 2 and possibly other components such as water) on the basis of coal or other carbonaceo...
Claims
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IPC IPC(8): C10L3/08B01J8/06B01J12/00
CPCB01J8/065B01J8/067B01J12/00B01J2204/002B01J2208/00061B01J2208/00168B01J2208/0053B01J2208/025Y02P20/133B01J8/0469B01J8/0496B01J2208/00539B01J2208/00548B01J2208/065C07C1/041C07C1/042C07C1/048C07C1/12B01J2208/00663
Inventor C·舒鲍尔D·韦尔贝克R·班克
Owner MAN ENERGY SOLUTIONS SA