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Petroleum resin hydrogenation reaction system and method

A reaction system, petroleum resin technology, applied in chemical instruments and methods, chemical/physical/physical chemical reactors, foam dispersion/prevention, etc., can solve the problem of equipment investment cost, high operating cost, decreased intrinsic safety, trickle flow, etc. The problem of high reaction pressure in the bed hydrogenation process can achieve the effect of improving the dispersion and crushing effect, pressure drop, and good product quality.

Pending Publication Date: 2020-12-11
NANJING YANCHANG REACTION TECH RES INST CO LTD
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  • Abstract
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Problems solved by technology

[0006] (2) The reaction pressure of the trickle bed hydrogenation process is relatively high (about 20MPa), the investment cost and operating cost of the device are high, and the intrinsic safety is reduced

Method used

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  • Petroleum resin hydrogenation reaction system and method

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Embodiment

[0057] refer to figure 1 Shown is a petroleum resin hydrogenation reaction system according to an embodiment of the present invention, which mainly includes a prehydrogenation reactor 100 and a refining hydrogenation reactor 120;

[0058] The pre-hydrogenation reactor 100 is a fixed-bed reactor, and a plurality of catalyst beds are arranged inside it, and a micro-interface generator 140 is arranged between the catalyst beds. Preferably, the catalyst bed is 3 layers, and the micro-interface generator 140 is three, and two catalyst beds are arranged in the refining hydrogenation reactor 120, and a micro-interface generator 140 is respectively arranged between the two catalyst beds and the bottom of the refining hydrogenation reactor 120 , the number of micro-interface generators 140 installed inside the refining hydrogenation reactor 120 is two.

[0059] The above reaction system includes a circulating hydrogen channel 50 and a new hydrogen channel 40. The circulating hydrogen ...

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Abstract

The invention provides a petroleum resin hydrogenation reaction system and method. The reaction system comprises a pre-hydrogenation reactor provided with a plurality of catalyst bed layers. Micro-interface generators are arranged between catalyst bed layers in the pre-hydrogenation reactor. A raw material inlet and a hydrogen inlet are respectively formed in the side wall of the pre-hydrogenationreactor, hydrogen is preheated by a hydrogen preheater and then enters the micro-interface generators from the hydrogen inlet, and a raw material petroleum resin solution is preheated by a raw material preheater and then enters the micro-interface generators from the raw material inlet. After the reaction system provided by the invention is combined with the micro-interface generators, the energyconsumption is reduced, the reaction temperature is reduced, the reaction yield is improved, the utilization rate of raw materials is improved, particularly the utilization rate of hydrogen is improved, and meanwhile, the productivity is effectively improved.

Description

technical field [0001] The invention relates to the field of hydrogenation of petroleum resins, in particular to a reaction system and method for hydrogenation of petroleum resins. Background technique [0002] Petroleum resin is an important basic chemical raw material and one of the important organic chemical products that has developed rapidly in recent years. Since C9 petroleum resin contains high unsaturated bonds, it is easy to react under the action of oxygen and other chemical substances, which greatly limits the application of petroleum resin, so it is necessary to carry out hydrogenation treatment on petroleum resin. [0003] The relative molecular weight of C9 petroleum resin (200-3000) is relatively large. Usually, under the catalysis of high-activity catalysts, the operating conditions reach 10-20MPa and 230-300°C to achieve better hydrogenation effect. In addition, there are toxic impurities such as sulfur and nitrogen in C9 petroleum resin, and the catalyst i...

Claims

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Application Information

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IPC IPC(8): B01J8/04B01J8/00B01J19/00B01D19/02C08F8/04C08F240/00
CPCB01J8/04B01J8/001B01J19/0093B01D19/02C08F8/04C08F240/00
Inventor 张志炳孟为民周政王宝荣杨高东罗华勋张锋李磊杨国强田洪舟曹宇
Owner NANJING YANCHANG REACTION TECH RES INST CO LTD
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