Ethylene carbonate reactor with multimode feeding function

Abstract

The utility model relates to the field of feeding methods, and discloses an ethylene carbonate reactor with multimode feeding, which comprises an ethylene oxide pump, the output end of the ethylene oxide pump is fixedly communicated with a multi-inlet carbon dioxide self-reactor, and the output end of the carbon dioxide self-reactor is fixedly connected with a heater. The input end of the multi-inlet carbon dioxide self-reactor is fixedly communicated with a circulating liquid inlet, the input end of the heater is fixedly communicated with a reaction circulating pump, and the input end of the reaction circulating pump is fixedly communicated with a reaction circulating pump inlet; a catalyst and ethylene oxide are mixed and then enter from the top of the carbon dioxide reactor together with reaction circulating liquid, carbon dioxide enters from the middle wall of the carbon dioxide reactor, and six carbon dioxide feed ports are formed in the middle of the carbon dioxide reactor.

Description

Technical Field

[0001] The utility model relates to the field of feeding methods, in particular to an ethylene carbonate reactor with multi-mode feeding. Background Art

[0002] Ethylene carbonate is an excellent organic solvent that can dissolve a variety of polymers. It can also be used as an organic intermediate to replace ethylene oxide in dioxygenation reactions and is the main raw material for producing dimethyl carbonate by the transesterification method. It can also be used as a raw material for synthesizing furazolidone, water glass slurry, fiber finishing agent, etc.

[0003] When ethylene carbonate is used in a reactor, the traditional feeding method has a low utilization rate and causes great damage, so it is necessary to provide a variety of feeding methods and improve the ethylene oxide conversion rate. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide an ethylene carbonate reactor with multi-feeding modes, which can solve the problem of providing multiple feeding modes and improving the conversion rate of ethylene oxide.

[0005] To solve the above technical problems, according to one aspect of the utility model, more specifically, an ethylene carbonate reactor with multi-mode feeding includes an ethylene oxide pump, the output end of the ethylene oxide pump is fixedly connected to a carbon dioxide self-reactor with multiple inlets, the output end of the carbon dioxide self-reactor is fixedly connected to a heater, the input end of the carbon dioxide self-reactor with multiple inlets is fixedly connected to a circulating liquid inlet, the input end of the heater is fixedly connected to a reaction circulation pump, and the input end of the reaction circulation pump is fixedly connected to an inlet of the reaction circulation pump.

[0006] Furthermore, the top end of the input end of the heater is fixedly connected to a reactor, the bottom end of the input end of the reactor is fixedly connected to a plurality of circulation pumps, the input end of the circulation pump is fixedly connected to a catalyst inlet, the output end of the catalyst inlet is fixedly connected to a mixer, and the output end of the mixer is fixedly connected to a carbon dioxide inlet.

[0007] The utility model has the following beneficial effects:

[0008] The catalyst and ethylene oxide are mixed and fed into the carbon dioxide reactor together with the reaction circulating liquid from the top, and carbon dioxide enters from the middle wall of the carbon dioxide reactor, where six carbon dioxide feed ports are opened;

[0009] The catalyst, ethylene oxide and carbon dioxide are inserted into the reaction circulation liquid line pipeline and enter the mixer together for mixing and then the carbon dioxide is introduced into the reactor, providing multiple feeding methods and improving the conversion rate of ethylene oxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0011] Figure 1 This is a schematic diagram of the first method structure of an ethylene carbonate reactor with multi-feeding methods of the utility model;

[0012] Figure 2 This is a schematic diagram of the second method structure of an ethylene carbonate reactor with multi-feeding methods according to the utility model.

[0013] In the figure: 1. Ethylene oxide pump; 2. Carbon dioxide self-reactor; 3. Heater; 4. Circulating liquid inlet; 5. Reaction circulation pump; 6. Reaction circulation pump inlet; 7. Reactor; 8. Circulating pump; 9. Catalyst inlet; 10. Mixer; 11. Carbon dioxide inlet. DETAILED DESCRIPTION

[0014] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0015] According to one aspect of the present invention, Figure 1-2 As shown, an ethylene carbonate reactor with multi-mode feeding is provided, comprising an ethylene oxide pump 1, the output end of the ethylene oxide pump 1 is fixedly connected to a carbon dioxide self-reactor 2 with multiple inlets, the output end of the carbon dioxide self-reactor 2 is fixedly connected to a heater 3, the input end of the carbon dioxide self-reactor 2 with multiple inlets is fixedly connected to a circulating liquid inlet 4, the input end of the heater 3 is fixedly connected to a reaction circulation pump 5, and the input end of the reaction circulation pump 5 is fixedly connected to a reaction circulation pump inlet 6;

[0016] The catalyst and ethylene oxide are mixed and introduced into the carbon dioxide reactor 2 together with the reaction circulating liquid from the top, and carbon dioxide enters from the wall in the middle of the carbon dioxide reactor 2, where six carbon dioxide feed ports are opened.

[0017] In this embodiment, the top of the input end of the heater 3 is fixedly connected to a reactor 7, the bottom of the input end of the reactor 7 is fixedly connected to a plurality of circulation pumps 8, the input end of the circulation pump 8 is fixedly connected to a catalyst inlet 9, the output end of the catalyst inlet 9 is fixedly connected to a mixer 10, and the output end of the mixer 10 is fixedly connected to a carbon dioxide inlet 11;

[0018] The catalyst, ethylene oxide and carbon dioxide are inserted into the reaction circulation liquid line pipeline and enter the mixer 10 together for mixing and then the carbon dioxide is introduced into the reactor 2, providing multiple feeding methods and improving the conversion rate of ethylene oxide.

[0019] The working principle of this device is:

[0020] Method 1: After the catalyst and ethylene oxide are mixed, they are introduced together with the reaction circulating liquid from the top of the carbon dioxide reactor 2, and the carbon dioxide enters from the middle wall of the carbon dioxide reactor 2, and six carbon dioxide feed ports are opened in the middle;

[0021] Method 2: catalyst, ethylene oxide, carbon dioxide three-way raw material inserted into the reaction circulation liquid line pipeline together into the mixer 10 mixed after the carbon dioxide from the reactor 2 inside, providing a variety of feeding methods, improve the ethylene oxide conversion rate.

[0022] The electrical components that appear in this article are all electrical components that exist in reality.

[0023] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. An ethylene carbonate reactor with multi-mode feeding, comprising an ethylene oxide pump (1), characterized in that: The output end of the ethylene oxide pump (1) is fixedly connected to a carbon dioxide self-reactor (2) with multiple inlets, the output end of the carbon dioxide self-reactor (2) is fixedly connected to a heater (3), the input end of the carbon dioxide self-reactor (2) with multiple inlets is fixedly connected to a circulating liquid inlet (4), the input end of the heater (3) is fixedly connected to a reaction circulation pump (5), and the input end of the reaction circulation pump (5) is fixedly connected to a reaction circulation pump inlet (6).

2. The ethylene carbonate reactor with multi-mode feeding according to claim 1, characterized in that: The top end of the input end of the heater (3) is fixedly connected to a reactor (7), the bottom end of the input end of the reactor (7) is fixedly connected to a plurality of circulation pumps (8), the input end of the circulation pump (8) is fixedly connected to a catalyst inlet (9), the output end of the catalyst inlet (9) is fixedly connected to a mixer (10), and the output end of the mixer (10) is fixedly connected to a carbon dioxide inlet (11).

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