Micro-interface enhanced reaction system and method for petroleum resin hydrogenation

Abstract

The invention provides a micro-interface enhanced reaction system and method for petroleum resin hydrogenation. The micro-interface enhanced reaction system comprises a pre-hydrogenation reactor provided with two catalyst bed layers, a circulating hydrogen channel and a new hydrogen channel, a built-in micro-interface generator is arranged between the two catalyst bed layers, and an external micro-interface generator is arranged on the side surface of the pre-hydrogenation reactor. After the micro-interface enhanced reaction system provided by the invention is combined with the micro-interfacegenerator, the energy consumption is reduced, the reaction temperature is reduced, the reaction yield is improved, the utilization rate of raw materials is improved, particularly the utilization rateof hydrogen is improved, and meanwhile, the productivity is effectively improved.

Description

technical field

[0001] The invention relates to the field of petroleum resin hydrogenation, in particular to a micro-interface strengthening reaction system and method for petroleum resin hydrogenation. 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 res...

Examples

Embodiment

[0057] refer to figure 1 As shown, it is a micro-interface enhanced reaction system for petroleum resin hydrogenation according to an embodiment of the present invention, which mainly includes a pre-hydrogenation reactor 100 and a refining hydrogenation reactor 120;

[0058] The pre-hydrogenation reactor 100 is a fixed-bed reactor, and two catalyst beds are arranged inside it, and a built-in micro-interface generator 60 is arranged between the catalyst beds, and an external micro-interface generator 60 is arranged on the side of the pre-hydrogenation reactor. Micro-interface generator 140, two catalyst beds are arranged in the refining hydrogenation reactor 120, a built-in micro-interface generator 60 is arranged between them, and an external micro-interface generator 140 is arranged on the side of the refining hydrogenation reactor 120 , the number of micro-interface generators set in the refining hydrogenation reactor 120 is the same as the number of micro-interface generato...

technical field

[0001] The invention relates to the field of petroleum resin hydrogenation, in particular to a micro-interface strengthening reaction system and method for petroleum resin hydrogenation. 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 res...

Examples

Embodiment

[0057] refer to figure 1 As shown, it is a micro-interface enhanced reaction system for petroleum resin hydrogenation according to an embodiment of the present invention, which mainly includes a pre-hydrogenation reactor 100 and a refining hydrogenation reactor 120;

[0058] The pre-hydrogenation reactor 100 is a fixed-bed reactor, and two catalyst beds are arranged inside it, and a built-in micro-interface generator 60 is arranged between the catalyst beds, and an external micro-interface generator 60 is arranged on the side of the pre-hydrogenation reactor. Micro-interface generator 140, two catalyst beds are arranged in the refining hydrogenation reactor 120, a built-in micro-interface generator 60 is arranged between them, and an external micro-interface generator 140 is arranged on the side of the refining hydrogenation reactor 120 , the number of micro-interface generators set in the refining hydrogenation reactor 120 is the same as the number of micro-interface generato...

Images