Equipment for producing cyclohexenol through benzene plus hydrogen

A technology for hydrogenation of cyclohexene and benzene, applied in the field of chemical equipment, can solve the problem of not providing a production device, etc., and achieve the effects of good safety, automation, and rich monitoring.

Inactive Publication Date: 2005-11-16
CHINA SHENMA GROUP +1
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  • Abstract
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Problems solved by technology

But above-mentioned patent does not provide complete production device

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  • Equipment for producing cyclohexenol through benzene plus hydrogen
  • Equipment for producing cyclohexenol through benzene plus hydrogen
  • Equipment for producing cyclohexenol through benzene plus hydrogen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Figure 1 is a schematic diagram of a device for producing cyclohexene by hydrogenation of benzene.

[0013] Figure 2 is the curve of temperature and pressure changing with time within 466h.

[0014] Figure 3 is a curve of the benzene flow rate and slurry circulation volume versus time within 466 hours.

[0015] Figure 4 is the curve of the liquid level changing with time within 466h.

[0016] Figure 5 shows the conversion of benzene and the selectivity of cyclohexene at 50-90 hours.

[0017] Figure 1, in the reactor, 1 is the motor, 2 is the magnetic seal stirring device, 3 is the stirring shaft, 4 is the hydrogen inlet pipeline, 5 is the benzene inlet pipeline, 6 is the sealing cover, 7 is the heat exchange coil, 8 is Multi-stage stirring blades, 9 is a gas phase distributor, 10 is a liquid phase distributor, 11 is a heat exchange jacket, 12 is an overflow weir, 13 is a product outlet,

[0018] In the settler, 14 is a diversion pipe, 15 is a baffle with a grid, 16 i...

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Abstract

An apparatus for preparing cyclohexane from benzene by hydrogenation is composed of a reaction system and a settling separation system. Said reaction system is a high-pressure reactor with heat-exchanging spiral tube, multi-stage stirrer, gas-phase distributor, liquid-phase distributor and overflow dam. Said settling separation system is a diameter-varied separator with grate barrier overflow dam, settling pipe and baffle plate.

Description

Technical field [0001] The invention belongs to chemical equipment, in particular to a device for producing cyclohexene by hydrogenation of benzene. Background technique [0002] Cyclohexene is an intermediate of many medicines and pesticides. It can be directly hydrated to generate cyclohexanol, directly oxidized to generate adipic acid, or oxidized to generate cyclohexanone by Wacker method. Cyclohexanol, cyclohexanone and adipic acid are important chemical raw materials. The partial hydrogenation of benzene to produce cyclohexene, especially the production of nylon 6 and nylon 66 by partial hydrogenation of benzene, is safer, energy-saving, and environmentally friendly than the traditional benzene complete hydrogenation route, and consumes one-third less hydrogen. The by-product is only cyclohexene. hexane. It has significant economic and social benefits. [0003] Since the 1990s, significant progress has been made in the production of cyclohexene by partial hydrogenat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C13/20
Inventor 刘木森戴新民刘寿长郑晓广陈聚良李识寒张结实金瑞科徐桦李建修姜继锁李晓峰
Owner CHINA SHENMA GROUP
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