Apparatus utilizing heat energy generated during platinum catalytic hydrogenation in cyclohexanone production for dehydrogenation technology

A technology of platinum catalysis and cyclohexanone, which is applied in the chemical industry to achieve the effects of reduced energy loss, reduced losses, and high thermal efficiency

Active Publication Date: 2015-08-12
SINOPEC NANJING ENG & CONSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, there is currently no device that can use the heat released by the catalytic hydrogenation reaction of benzene for the heat required for the cycloethanol dehydrogenation reaction.

Method used

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  • Apparatus utilizing heat energy generated during platinum catalytic hydrogenation in cyclohexanone production for dehydrogenation technology

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with embodiment, but protection scope of the present invention is not limited to this:

[0031] Such as figure 1 Shown, a kind of device that cyclohexanone produces the heat energy that platinum catalytic hydrogenation produces is used for dehydrogenation process, and this device comprises benzene evaporator (1), steam generator (2), hydrogenation reactor (3), dehydrogenation process Hydrogen reactor (4), hydrogenation thermal oil circulation pump (5) and dehydrogenation thermal oil circulation pump (6), wherein:

[0032] The heat transfer oil output end of the upper part of the benzene evaporator (1) is connected to the steam generator (2), and one heat transfer oil output end of the steam generator (2) is connected to the hydrogenation hot oil circulation pump (5) and the dehydrogenation heat pump (5) respectively. The oil circulation pump (6) is connected;

[0033] The heat transfer oil output end...

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Abstract

The invention discloses an apparatus utilizing heat energy generated during platinum catalytic hydrogenation in cyclohexanone production for dehydrogenation technology, and belongs to the field of chemical engineering. The provided apparatus can utilize the heat energy discharged during the catalytic benzene hydrogenation reactions for the cyclohexanol dehydrogenation reactions. The apparatus supply heat energy to dehydrogenation reactions, the thermal efficiency is high, and the loss of heat energy in conversions is reduced. Moreover, the heat loss in pipelines for delivering the high-temperature heat conductive oil in a long distance is greatly reduced or even eliminated; the heat, which is brought out by the hot flue gas discharged from the fuel oil, fuel coat, or fuel gas heat conductive oil furnace, is also reduced or eliminated, thus the energy loss is reduced; at the same time, the operation time of the heat conductive oil furnace is shortened effectively, and the waste gas discharge is reduced.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a method for producing platinum catalytic hydrogenation heat energy from cyclohexanone and using it in a dehydrogenation process. Device for hydrogen reaction process. Background technique [0002] Cyclohexanone is an important organic chemical raw material, mainly used as an intermediate in the production of caprolactam, adipic acid and its salts. The dehydrogenation reaction of cyclohexanol to generate cyclohexanone is an endothermic reaction, and the reaction endotherm is 60.7kJ per mole of cyclohexanol. To provide the reaction heat of cyclohexanol dehydrogenation, the usual method is to heat the heat-conducting oil with a heat-conducting oil furnace, and pump the heated heat-conducting oil into the cyclohexanol dehydrogenation reactor with a circulating pump to provide the required heat for the cyclohexanol dehydrogenation reaction. heat to maintain th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/00C07C45/51C07C49/403
Inventor 杨春和龚建华张国妮潘珍燕
Owner SINOPEC NANJING ENG & CONSTR
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