Device for producing ultra-pure dicyclopentadiene

Abstract

The utility model provides a device for producing ultra-pure dicyclopentadiene. Comprising a dicyclopentadiene product tower, a dicyclopentadiene tower condenser, a dicyclopentadiene tower aftercooler, a dicyclopentadiene tower reflux filter, a dicyclopentadiene tower reflux pump, a dicyclopentadiene tower reflux filter, a dicyclopentadiene condensate tank, a dicyclopentadiene delivery pump, an underground sump oil tank, a dicyclopentadiene delivery pump outlet regulating valve and a dicyclopentadiene dimerization reactor, the hydrogenation unit comprises a raw material filter and a hydrogenation raw material buffer tank; an outlet pipeline of an outlet regulating valve of the cyclopentadiene conveying pump is connected with an inlet pipeline of a cyclopentadiene dimerization reactor, the outlet pipeline of the outlet regulating valve of the cyclopentadiene conveying pump is also connected with an inlet pipeline of a raw material filter of a hydrogenation unit, and an outlet pipeline of the raw material filter of the hydrogenation unit is connected with an inlet pipeline of a hydrogenation raw material buffer tank; the index requirement of ultra-pure dicyclopentadiene can be met, and the comprehensive yield of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical industry, in particular to a device for producing ultra-pure dicyclopentadiene. Background Art

[0002] The main indicators of qualified industrial-grade dicyclopentadiene require that the total content (bridge type) is ≥97%, and the total content (bridge type + hanging type) is ≥98%. The current ultra-pure grade indicators required by the downstream market of dicyclopentadiene, pesticide and pharmaceutical industries, require that the total content (bridge type) is ≥99.1%, and the total content (bridge type + hanging type) is ≥99.6%. The original design process of the carbon nine separation device cannot meet the production indicator requirements of ultra-pure dicyclopentadiene.

[0003] The original design process of the carbon-9 separation unit is suitable for producing qualified-grade dicyclopentadiene. According to the demand of the downstream high-end market, ultra-pure dicyclopentadiene can further improve the comprehensive yield of downstream production. The dicyclopentadiene refining unit of the carbon-9 separation unit is now undergoing technical transformation and adjustment, which not only improves the purity of the dicyclopentadiene product, but also increases the competitiveness in the sales market and improves the comprehensive yield of the carbon-9 separation unit, with significant benefits and advantages. Utility Model Content

[0004] In view of the above problems, the purpose of this application is to provide a device for producing ultra-pure dicyclopentadiene. By modifying the dicyclopentadiene refining unit of the carbon nine separation device, the cyclopentadiene condensate tank output is changed from the dedimerization unit to the hydrogenation unit, thereby solving the production index requirements of ultra-pure dicyclopentadiene and increasing the comprehensive yield of the carbon nine separation device. The economic benefits are significant, enabling it to meet the ultra-pure dicyclopentadiene index requirements and improve the comprehensive yield of the device.

[0005] To achieve some or all of the above-mentioned objectives or other objectives, the present application provides the following technical solutions: a device for producing ultra-pure dicyclopentadiene, comprising a dicyclopentadiene product tower, a dicyclopentadiene tower condenser, a dicyclopentadiene tower aftercooler, a dicyclopentadiene tower reflux tank, a dicyclopentadiene tower reflux pump, a dicyclopentadiene tower reflux filter, a cyclopentadiene condensate tank, a cyclopentadiene delivery pump, an underground waste oil tank, a cyclopentadiene delivery pump outlet regulating valve, a cyclopentadiene dimerization reactor, a raw material filter for a hydrogenation unit, and a hydrogenation raw material buffer. The top outlet pipeline of the dicyclopentadiene product tower is connected to the inlet pipeline of the dicyclopentadiene tower condenser, the bottom outlet pipeline of the dicyclopentadiene tower condenser is connected to the inlet pipeline of the dicyclopentadiene tower reflux tank, the top outlet pipeline of the dicyclopentadiene tower reflux tank is connected to the first inlet pipeline of the cyclopentadiene condensate tank; the bottom outlet pipeline of the dicyclopentadiene tower reflux tank is connected to the inlet pipeline of the dicyclopentadiene tower reflux pump, and the outlet pipeline of the dicyclopentadiene tower reflux pump is connected to the inlet pipeline of the cyclopentadiene dimerization reactor. The outlet pipeline of the dicyclopentadiene tower reflux pump is also connected to the inlet pipeline of the dicyclopentadiene tower reflux filter, and the outlet pipeline of the dicyclopentadiene tower reflux filter is connected to the upper inlet pipeline of the dicyclopentadiene product tower; the top outlet pipeline of the dicyclopentadiene tower condenser is connected to the inlet pipeline of the dicyclopentadiene tower aftercooler, and the bottom outlet pipeline of the dicyclopentadiene tower aftercooler is connected to the second inlet pipeline of the cyclopentadiene condensate tank; the outlet pipeline of the cyclopentadiene condensate tank is connected to the inlet pipeline of the cyclopentadiene delivery pump The outlet pipeline of the cyclopentadiene delivery pump is connected to the inlet pipeline of the underground waste oil tank, the outlet pipeline of the cyclopentadiene delivery pump is also connected to the inlet pipeline of the cyclopentadiene delivery pump outlet regulating valve, the outlet pipeline of the cyclopentadiene delivery pump outlet regulating valve is connected to the inlet pipeline of the cyclopentadiene dimerization reactor, the outlet pipeline of the cyclopentadiene delivery pump outlet regulating valve is also connected to the inlet pipeline of the raw material filter of the hydrogenation unit, and the outlet pipeline of the raw material filter of the hydrogenation unit is connected to the inlet pipeline of the hydrogenation raw material buffer tank.

[0006] Furthermore, it also includes a dicyclopentadiene production pump; the middle outlet pipeline of the dicyclopentadiene product tower is connected to the inlet pipeline of the dicyclopentadiene production pump, and the outlet pipeline of the dicyclopentadiene production pump outputs ultra-pure dicyclopentadiene.

[0007] Furthermore, it also includes a dicyclopentadiene tower bottom pump, a dicyclopentadiene tower reboiler, and a dicyclopentadiene tower bottom condensate tank; the bottom outlet pipeline of the dicyclopentadiene product tower is connected to the inlet pipeline of the dicyclopentadiene tower bottom pump, the outlet pipeline of the dicyclopentadiene tower bottom pump is connected to the inlet pipeline of the dicyclopentadiene tower reboiler, the upper outlet pipeline of the dicyclopentadiene tower reboiler is connected to the lower inlet pipeline of the dicyclopentadiene product tower, and the bottom outlet pipeline of the dicyclopentadiene tower reboiler is connected to the inlet pipeline of the dicyclopentadiene tower bottom condensate tank.

[0008] Furthermore, a valve is provided on the inlet pipeline of the raw material filter of the hydrogenation unit.

[0009] Furthermore, the top outlet pipeline of the dicyclopentadiene tower aftercooler is connected to a vacuum system.

[0010] Compared with the existing technology, the beneficial effects of the utility model are: solving the product purity problem of ultra-pure dicyclopentadiene in the carbon nine separation device, with significant effect; improving the comprehensive yield after being put into use, achieving the purpose of increasing efficiency; and having guiding significance for the production of ultra-pure dicyclopentadiene in newly built devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the process of the utility model;

[0012] In the figure: 2. Cyclopentadiene condensate tank; 3. Cyclopentadiene transfer pump; 4. Underground waste oil tank; 5. Cyclopentadiene transfer pump outlet regulating valve; 6. Cyclopentadiene dimerization reactor; 7. Feed filter for hydrogenation unit; 8. Hydrogenation feed buffer tank; 11. Dicyclopentadiene product tower; 12. Dicyclopentadiene tower condenser; 13. Dicyclopentadiene tower aftercooler; 14. Dicyclopentadiene tower reflux tank; 15. Dicyclopentadiene tower reflux pump; 16. Dicyclopentadiene tower reflux filter; 17. Dicyclopentadiene production pump; 18. Dicyclopentadiene tower bottom pump; 19. Dicyclopentadiene tower reboiler; 20. Dicyclopentadiene tower bottom condensate tank. DETAILED DESCRIPTION

[0013] In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0014] See attached Figure 1A device for producing ultra-pure dicyclopentadiene, comprising a dicyclopentadiene product tower 11, a dicyclopentadiene tower condenser 12, a dicyclopentadiene tower aftercooler 13, a dicyclopentadiene tower reflux tank 14, a dicyclopentadiene tower reflux pump 15, a dicyclopentadiene tower reflux filter 16, a cyclopentadiene condensate tank 2, a cyclopentadiene delivery pump 3, an underground waste oil tank 4, a cyclopentadiene delivery pump outlet regulating valve 5, a cyclopentadiene dimerization reactor 6, a hydrogenation unit raw material filter 7, and a hydrogenation raw material buffer tank 8; the top outlet pipeline of the dicyclopentadiene product tower 11 is connected to the dicyclopentadiene tower 14 ... The inlet pipeline of the dicyclopentadiene tower condenser 12 is connected to the inlet pipeline of the dicyclopentadiene tower condenser 12, the bottom outlet pipeline of the dicyclopentadiene tower condenser 12 is connected to the inlet pipeline of the dicyclopentadiene tower reflux tank 14, and the top outlet pipeline of the dicyclopentadiene tower reflux tank 14 is connected to the first inlet pipeline of the cyclopentadiene condensate tank 2; the bottom outlet pipeline of the dicyclopentadiene tower reflux tank 14 is connected to the inlet pipeline of the dicyclopentadiene tower reflux pump 15, and the outlet pipeline of the dicyclopentadiene tower reflux pump 15 is connected to the inlet pipeline of the cyclopentadiene dimerization reactor 6, and the outlet pipeline of the dicyclopentadiene tower reflux pump 15 is also connected to the dicyclopentadiene tower reflux pump 15. The inlet pipeline of the diene tower reflux filter 16 is connected to the outlet pipeline of the dicyclopentadiene tower reflux filter 16, and the outlet pipeline of the dicyclopentadiene tower reflux filter 16 is connected to the upper inlet pipeline of the dicyclopentadiene product tower 11; the top outlet pipeline of the dicyclopentadiene tower condenser 12 is connected to the inlet pipeline of the dicyclopentadiene tower aftercooler 13, and the bottom outlet pipeline of the dicyclopentadiene tower aftercooler 13 is connected to the second inlet pipeline of the cyclopentadiene condensate tank 2; the outlet pipeline of the cyclopentadiene condensate tank 2 is connected to the inlet pipeline of the cyclopentadiene delivery pump 3, and the outlet pipeline of the cyclopentadiene delivery pump 3 is connected to the outlet pipeline of the underground waste oil tank 4. The inlet pipeline of the cyclopentadiene delivery pump 3 is also connected to the inlet pipeline of the cyclopentadiene delivery pump outlet regulating valve 5, the outlet pipeline of the cyclopentadiene delivery pump outlet regulating valve 5 is connected to the inlet pipeline of the cyclopentadiene dimerization reactor 6, the outlet pipeline of the cyclopentadiene delivery pump outlet regulating valve 5 is also connected to the inlet pipeline of the raw material filter 7 of the hydrogenation unit, and the outlet pipeline of the raw material filter 7 of the hydrogenation unit is connected to the inlet pipeline of the hydrogenation raw material buffer tank 8; a new three-way pipeline is added after the outlet regulating valve of the cyclopentadiene delivery pump 3 to the raw material filter 7 of the hydrogenation unit.

[0015] Furthermore, it also includes a dicyclopentadiene production pump 17; the middle outlet pipeline of the dicyclopentadiene product tower 11 is connected to the inlet pipeline of the dicyclopentadiene production pump 17, and the outlet pipeline of the dicyclopentadiene production pump 17 outputs ultra-pure dicyclopentadiene.

[0016] Furthermore, it also includes a dicyclopentadiene tower bottom pump 18, a dicyclopentadiene tower reboiler 19, and a dicyclopentadiene tower bottom condensate tank 20; the bottom outlet pipeline of the dicyclopentadiene product tower 11 is connected to the inlet pipeline of the dicyclopentadiene tower bottom pump 18, the outlet pipeline of the dicyclopentadiene tower bottom pump 18 is connected to the inlet pipeline of the dicyclopentadiene tower reboiler 19, the upper outlet pipeline of the dicyclopentadiene tower reboiler 19 is connected to the lower inlet pipeline of the dicyclopentadiene product tower 11, and the bottom outlet pipeline of the dicyclopentadiene tower reboiler 19 is connected to the inlet pipeline of the dicyclopentadiene tower bottom condensate tank 20.

[0017] Furthermore, a valve is provided on the inlet pipeline of the raw material filter 7 of the hydrogenation unit.

[0018] Furthermore, the top outlet pipeline of the dicyclopentadiene tower aftercooler 13 is connected to a vacuum system.

[0019] Furthermore, the cyclopentadiene delivery pump 3 to the cyclopentadiene dimerization reactor 6 is stopped to prevent the internal circulation of benzene and light components, which may result in the product failing to reach ultra-pure grade. After stopping the delivery, the flow is changed to the underground waste oil tank 4 for recovery at a rate of 60 kg / h. A new 1-inch pipeline is added to connect the outlet regulating valve of the cyclopentadiene delivery pump 3 to the hydrogenation unit, the regulating valve position is 30%, and the flow rate is 60 kg / h for continuous delivery. After passing through the hydrogenation unit, it is delivered to the carbon nine tank area together with hydrogenated carbon nine. The transformation of this application can produce ultra-pure dicyclopentadiene and can also produce the cyclopentadiene from the cyclopentadiene delivery pump 3 for recovery to the hydrogenation unit, with significant benefits.

[0020] The above disclosure is only a preferred embodiment of the present application, and certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A device for producing ultrapure dicyclopentadiene, characterized in that: The invention comprises a dicyclopentadiene product tower (11), a dicyclopentadiene tower condenser (12), a dicyclopentadiene tower aftercooler (13), a dicyclopentadiene tower reflux tank (14), a dicyclopentadiene tower reflux pump (15), a dicyclopentadiene tower reflux filter (16), a cyclopentadiene condensate tank (2), a cyclopentadiene delivery pump (3), an underground waste oil tank (4), a cyclopentadiene delivery pump outlet regulating valve (5), a cyclopentadiene dimerization reactor (6), a hydrogenation unit raw material filter (7), and a hydrogenation raw material buffer tank (8); the top outlet pipeline of the dicyclopentadiene product tower (11) is connected to the dicyclopentadiene tower. The inlet pipeline of the dicyclopentadiene tower condenser (12) is connected to the inlet pipeline of the dicyclopentadiene tower condenser (12), the bottom outlet pipeline of the dicyclopentadiene tower condenser (12) is connected to the inlet pipeline of the dicyclopentadiene tower reflux tank (14), the top outlet pipeline of the dicyclopentadiene tower reflux tank (14) is connected to the first inlet pipeline of the cyclopentadiene condensate tank (2); the bottom outlet pipeline of the dicyclopentadiene tower reflux tank (14) is connected to the inlet pipeline of the dicyclopentadiene tower reflux pump (15), the outlet pipeline of the dicyclopentadiene tower reflux pump (15) is connected to the inlet pipeline of the cyclopentadiene dimerization reactor (6), the dicyclopentadiene tower reflux pump ( The outlet pipeline of the dicyclopentadiene tower reflux filter (16) is also connected to the inlet pipeline of the dicyclopentadiene tower reflux filter (16), and the outlet pipeline of the dicyclopentadiene tower reflux filter (16) is connected to the upper inlet pipeline of the dicyclopentadiene product tower (11); the top outlet pipeline of the dicyclopentadiene tower condenser (12) is connected to the inlet pipeline of the dicyclopentadiene tower aftercooler (13), and the bottom outlet pipeline of the dicyclopentadiene tower aftercooler (13) is connected to the second inlet pipeline of the cyclopentadiene condensate tank (2); the outlet pipeline of the cyclopentadiene condensate tank (2) is connected to the inlet pipeline of the cyclopentadiene delivery pump (3), and the outlet pipeline of the cyclopentadiene condensate tank (2) is connected to the inlet pipeline of the cyclopentadiene delivery pump (3). The outlet pipeline of the cyclopentadiene delivery pump (3) is connected to the inlet pipeline of the underground waste oil tank (4), the outlet pipeline of the cyclopentadiene delivery pump (3) is also connected to the inlet pipeline of the cyclopentadiene delivery pump outlet regulating valve (5), the outlet pipeline of the cyclopentadiene delivery pump outlet regulating valve (5) is connected to the inlet pipeline of the cyclopentadiene dimerization reactor (6), the outlet pipeline of the cyclopentadiene delivery pump outlet regulating valve (5) is also connected to the inlet pipeline of the raw material filter (7) of the hydrogenation unit, and the outlet pipeline of the raw material filter (7) of the hydrogenation unit is connected to the inlet pipeline of the hydrogenation raw material buffer tank (8).

2. A device for producing ultrapure dicyclopentadiene according to claim 1, characterized in that: It also includes a dicyclopentadiene production pump (17); the middle outlet pipeline of the dicyclopentadiene product tower (11) is connected to the inlet pipeline of the dicyclopentadiene production pump (17), and the outlet pipeline of the dicyclopentadiene production pump (17) outputs ultra-pure dicyclopentadiene.

3. A device for producing ultrapure dicyclopentadiene according to claim 1, characterized in that: The invention also includes a dicyclopentadiene tower bottom pump (18), a dicyclopentadiene tower reboiler (19), and a dicyclopentadiene tower bottom condensate tank (20); the bottom outlet pipeline of the dicyclopentadiene product tower (11) is connected to the inlet pipeline of the dicyclopentadiene tower bottom pump (18), the outlet pipeline of the dicyclopentadiene tower bottom pump (18) is connected to the inlet pipeline of the dicyclopentadiene tower reboiler (19), the upper outlet pipeline of the dicyclopentadiene tower reboiler (19) is connected to the lower inlet pipeline of the dicyclopentadiene product tower (11), and the bottom outlet pipeline of the dicyclopentadiene tower reboiler (19) is connected to the inlet pipeline of the dicyclopentadiene tower bottom condensate tank (20).

4. A device for producing ultrapure dicyclopentadiene according to claim 1, characterized in that: A valve is provided on the inlet pipeline of the raw material filter (7) of the hydrogenation unit.

5. A device for producing ultrapure dicyclopentadiene according to claim 1, characterized in that: The top outlet pipeline of the dicyclopentadiene tower aftercooler (13) is connected to the vacuum system.

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