CN205295238U - Heavy hydrocarbon , heavy oil and heavy -oxygen -enriched water's separator among MTO process - Google Patents
Heavy hydrocarbon , heavy oil and heavy -oxygen -enriched water's separator among MTO process Download PDFInfo
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- CN205295238U CN205295238U CN201521137297.2U CN201521137297U CN205295238U CN 205295238 U CN205295238 U CN 205295238U CN 201521137297 U CN201521137297 U CN 201521137297U CN 205295238 U CN205295238 U CN 205295238U
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Abstract
The utility model discloses a heavy hydrocarbon, heavy oil and heavy -oxygen -enriched water's separator among MTO process, including one section entry buffer tank, heavy hydrocarbon flash tank and oil water separator on the product gas compressor, wherein the bottom discharge mouth of one section entry buffer tank on the product gas compressor is continuous with the feed inlet of heavy hydrocarbon flash tank, and the flash distillation liquid discharge gate of heavy hydrocarbon flash tank bottom links to each other with oil water separator's feed inlet, the gaseous phase discharge gate at heavy hydrocarbon flash tank top is connected to the product gas import of one section entry buffer tank on the compressor, oil water separator sets up oil phase discharge gate and aqueous phase discharge gate respectively, and the oil phase discharge gate is connected with C6 product storage tank, and the aqueous phase discharge gate is connected with oxide strip tower. The recycle to heavy hydrocarbon, heavy oil and oxide among the MTO process is realized to the device, can resources are saved, reduction in production cost. Simultaneously can also avoid heavy hydrocarbon and oxide to accumulate in the system, prevent that the quench tower from blockking up.
Description
Technical field
This utility model relates to a kind of chemical industry equipment, particularly relates to the segregation apparatus of heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in a kind of MTO technical process.
Background technology
In current methanol-to-olefins (MTO) technique, to heavy-oxygen-enriched water containing heavy hydrocarbon bottom one section of inlet buffer of gas product compressor and the separation column heavy-oxygen-enriched water containing multi-methyl benzene oily substance, what take is be directly entered oxide stripper to carry out stripping process, under present technological conditions, heavy oil is difficult to be effectively addressed by stripper, cause that oxide stripping tower bottom water stripping contains substantial amounts of oily substance, As time goes on oily substance constantly accumulates in systems, oxide stripper water quality constantly worsens, directly influence the oxide absorption tower as downstream water stripping user and the stable operation of chilling tower, and then have influence on the long-term operation of whole MTO device.
Summary of the invention
The purpose of this utility model is in that to provide the segregation apparatus of heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in a kind of MTO technical process. Described device is by changing technological process, set up heavy oil flash tank recovery section heavy hydrocarbon, set up oil-water separation system and reclaim oily substance, be conducive to improving oxide stripper water quality, avoid heavy hydrocarbon and oxide to accumulate in system for a long time, circulate, be conducive to the long period even running of MTO device.
The purpose of this utility model is realized by following measures:
The segregation apparatus of heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in a kind of MTO technical process, including one section of inlet buffer of gas product compressor, it is characterised in that described segregation apparatus also includes heavy hydrocarbon flash tank and oil water separator; Wherein the bottom discharge mouth of one section of inlet buffer of gas product compressor is connected with the charging aperture of heavy hydrocarbon flash tank by surge tank discharging pump, and the flash liquid discharging opening bottom described heavy hydrocarbon flash tank is connected with the charging aperture of oil water separator by heavy hydrocarbon flash tank discharging pump;
The gas phase discharging opening of described heavy hydrocarbon flash drum overhead is connected to the gas product import of one section of inlet buffer of compressor by reflux line;Described oil water separator is respectively provided with oil phase discharging opening and aqueous phase discharging opening, and oil phase discharging opening is connected with C6 product storage tank, and aqueous phase discharging opening is connected with oxide stripper.
The gas phase discharging opening at described oil water separator top is connected to the gas product import of one section of inlet buffer of compressor by pipeline.
One section of inlet buffer of described compressor arranges far transmission level meter, is provided with the fluid level control valve of inlet buffer after surge tank discharging pump.
Described heavy hydrocarbon flash tank arranges far transmission level meter, is provided with the fluid level control valve of heavy hydrocarbon flash tank after heavy hydrocarbon flash tank discharging pump.
It is additionally provided with reboiler bottom described heavy hydrocarbon flash tank.
Connection pipeline between described heavy hydrocarbon flash tank discharging pump and the charging aperture of oil water separator is additionally provided with a water-cooled heat exchanger; On described connection pipeline, a parallel pipeline branch road is set before water-cooled heat exchanger for by knockout tower upper water interflow to oil water separator.
The one section of inlet buffer of the MTO gas product compressor heavy-oxygen-enriched water containing heavy hydrocarbon buffered tank discharging pump under Liquid level enters heavy oil flash tank, and making its part vaporize by low low-pressure steam (LLPS) heating, the light component of gas phase flashed off backs within one section of inlet buffer of gas product compressor and reclaims. Liquid phase by entering gun barrel after water-cooled heat exchanger cools down after the pressurization of heavy oil flash tank discharging pump. After oil-water separation, oils product delivers to C6 product storage tank under Liquid level together with the C6 product of OCP unit. Aqueous phase containing oxide is then sent into oxide stripper under Interface Control and is carried out oxide recovery, and the light component of gas phase in gun barrel backs within one section of inlet buffer of gas product compressor through top outlet pipe and reclaims.
Beneficial effect:
This utility model is capable of the recycling of heavy hydrocarbon, heavy oil and oxide in MTO technical process, it is possible to economizes on resources, reduce production cost. The heavy hydrocarbon produce MTO technique and heavy-oxygen-enriched water individual processing, additionally it is possible to avoid heavy hydrocarbon and oxide to accumulate in system, it is prevented that chilling tower blocks, be conducive to improving the assimilation effect on oxide absorption tower.
Accompanying drawing explanation
Fig. 1 is the structural representation of the segregation apparatus of heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in a kind of MTO technical process of the present utility model. Wherein 1 is one section of inlet buffer of gas product compressor, and 2 is surge tank discharging pump, and 3 is fluid level control valve, 4 is heavy hydrocarbon flash tank, and 5 is reboiler, and 6 is volume control device, 7 is volume control device, and 8 is heavy hydrocarbon flash tank discharging pump, and 9 is fluid level control valve, 10 is water-cooled heat exchanger, 11 is oil water separator, and 13 is pressure control device, and 14 is C6 product storage tank, 15 is oxide stripper, and 16 is knockout tower.
Detailed description of the invention
The segregation apparatus of heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in a kind of MTO technical process, including one section of inlet buffer 1 of gas product compressor, heavy hydrocarbon flash tank 4 and oil water separator 11; Wherein the bottom discharge mouth of one section of inlet buffer 1 of gas product compressor is connected with the charging aperture of heavy hydrocarbon flash tank 4 by surge tank discharging pump 2, one section of inlet buffer 1 of gas product compressor is additionally provided with a far transmission level meter LIC, and control signal is passed to the fluid level control valve 3 after surge tank discharging pump 2, control the liquid level in one section of inlet buffer 1 of compressor; Flash liquid discharging opening bottom described heavy hydrocarbon flash tank 4 is connected with the charging aperture of oil water separator 11 by heavy hydrocarbon flash tank discharging pump 8;Described heavy hydrocarbon flash tank 4 also sets up a far transmission level meter LIC, and the fluid level control valve 9 of the heavy hydrocarbon flash tank 4 arranged after control signal is passed to heavy hydrocarbon flash tank discharging pump 8. Described heavy hydrocarbon flash tank 4 top is provided with gas return conduit for gaseous component in heavy hydrocarbon flash tank 4 is back to one section of inlet buffer 1 of gas product compressor, and the outlet pipe that the top of described gas return conduit and oil water separator 11 is arranged collaborates to one section of inlet buffer 1 of gas product compressor after converging to the admission line of knockout tower gas product; The top outlet pipe of described oil water separator 11 is additionally provided with a pressure control device 13, described oil water separator is respectively provided with oil phase discharging opening and aqueous phase discharging opening, oil phase discharging opening is connected with C6 product storage tank 14, and aqueous phase discharging opening is connected with oxide stripper 15. Being additionally provided with a reboiler 5 on described heavy hydrocarbon flash tank 4, described reboiler 5 has a low low pressure steam inlet and a low pressure condensate outlet, and controls low pressure condensate flow by volume control device 6. Connection pipeline between described heavy hydrocarbon flash tank discharging pump 8 and the charging aperture of oil water separator 11 is additionally provided with a water-cooled heat exchanger 10, one parallel pipeline branch road was set before water-cooled heat exchanger 10 for by knockout tower 16 upper water interflow to oil water separator 11, described pipeline branch road being provided with volume control device 7; Described water-cooled heat exchanger 10 is provided with recirculated water water return pipeline and recirculated water water supply pipeline.
When in a kind of MTO technical process described in the utility model, the segregation apparatus of heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water works, gas product from knockout tower is compressed step by step in four sections of centrifugal compressors with intersegmental cooler and intersegmental surge tank, it is compressed to about 3000kpa from 250kpa, fluid cooling and flash distillation in intersegmental cooler and intersegmental surge tank respectively between compressor section, thus removing major part water and heavy hydrocarbon. Intersegmental condensate, including water with some liquefied hydrocarbons by being sent back to one section of inlet buffer 1 of gas product compressor after intersegmental surge tank, one section of inlet buffer 1 of gas product compressor buffered tank discharging pump 2 under Liquid level of the heavy-oxygen-enriched water containing heavy hydrocarbon enters heavy oil flash tank 4, and making its part vaporize by low low-pressure steam (LLPS) heating, low pressure lime set is controlled by volume control device 6. The light component of gas phase flashed off backs within one section of inlet buffer 1 of gas product compressor and reclaims. Liquid phase by entering gun barrel 11 after the cooling of water cooled formula heat exchanger 10 after the pressurization of heavy oil flash tank discharging pump 8 under the control of heavy hydrocarbon flash tank fluid level control valve 9. After oil-water separation, oils product delivers to C6 product storage tank 14 under Liquid level together with the C6 product of OCP unit. Aqueous phase containing oxide is then sent into oxide stripper 15 under Interface Control and is carried out oxide recovery, and the light component of gas phase in gun barrel 11 backs within one section of inlet buffer 1 of gas product compressor through top outlet pipe and reclaims.
Claims (7)
1. the segregation apparatus of heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in a MTO technical process, including one section of inlet buffer (1) of gas product compressor, it is characterized in that, described segregation apparatus also includes heavy hydrocarbon flash tank (4) and oil water separator (11); Wherein the bottom discharge mouth of one section of inlet buffer (1) of gas product compressor is connected with the charging aperture of heavy hydrocarbon flash tank (4), and the flash liquid discharging opening of described heavy hydrocarbon flash tank (4) bottom is connected with the charging aperture of oil water separator (11);
The gas phase discharging opening at described heavy hydrocarbon flash tank (4) top is connected to the gas product import of one section of inlet buffer (1) of compressor by reflux line; Described oil water separator (11) is respectively provided with oil phase discharging opening and aqueous phase discharging opening, and oil phase discharging opening is connected with C6 product storage tank (14), and aqueous phase discharging opening is connected with oxide stripper (15).
2. the segregation apparatus of heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in a kind of MTO technical process according to claim 1, it is characterized in that, the gas phase discharging opening at described oil water separator (11) top is connected to the gas product import of one section of inlet buffer (1) of compressor by pipeline.
3. the segregation apparatus of heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in a kind of MTO technical process according to claim 1, it is characterised in that described heavy hydrocarbon flash tank (4) bottom is additionally provided with reboiler (5).
4. the segregation apparatus of heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in a kind of MTO technical process according to claim 1, it is characterized in that, the connection pipeline between described heavy hydrocarbon flash tank discharging pump (8) and the charging aperture of oil water separator (11) is additionally provided with water-cooled heat exchanger (10).
5. the segregation apparatus of heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in a kind of MTO technical process according to claim 4, it is characterized in that, on described connection pipeline, water-cooled heat exchanger (10) front arrange a parallel pipeline branch road for by knockout tower (16) upper water interflow in oil water separator (11).
6. the segregation apparatus of heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in a kind of MTO technical process according to claim 1, it is characterized in that, one section of inlet buffer (1) of described compressor arranges far transmission level meter, after surge tank discharging pump (2), is provided with the fluid level control valve (3) of inlet buffer (1).
7. the segregation apparatus of heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in a kind of MTO technical process according to claim 1, it is characterized in that, described heavy hydrocarbon flash tank (4) arranges far transmission level meter, after heavy hydrocarbon flash tank discharging pump (8), is provided with the fluid level control valve (9) of heavy hydrocarbon flash tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137297.2U CN205295238U (en) | 2015-12-31 | 2015-12-31 | Heavy hydrocarbon , heavy oil and heavy -oxygen -enriched water's separator among MTO process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137297.2U CN205295238U (en) | 2015-12-31 | 2015-12-31 | Heavy hydrocarbon , heavy oil and heavy -oxygen -enriched water's separator among MTO process |
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| Publication Number | Publication Date |
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| CN205295238U true CN205295238U (en) | 2016-06-08 |
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| CN201521137297.2U Active CN205295238U (en) | 2015-12-31 | 2015-12-31 | Heavy hydrocarbon , heavy oil and heavy -oxygen -enriched water's separator among MTO process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419861A (en) * | 2015-12-31 | 2016-03-23 | 惠生（南京）清洁能源股份有限公司 | Separating device for heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in MTO technology process |
-
2015
- 2015-12-31 CN CN201521137297.2U patent/CN205295238U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419861A (en) * | 2015-12-31 | 2016-03-23 | 惠生（南京）清洁能源股份有限公司 | Separating device for heavy hydrocarbon, heavy oil and heavy-oxygen-enriched water in MTO technology process |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210047 No. 118, Tai Fang Road, Nanjing chemical industry park, Jiangsu, Nanjing Patentee after: NANJING CHENGZHI CLEAN ENERGY Co.,Ltd. Address before: 210047 No. 118, Tai Fang Road, Nanjing chemical industry park, Jiangsu, Nanjing Patentee before: Nanjing Zhicheng clean energy Limited by Share Ltd. Address after: 210047 No. 118, Tai Fang Road, Nanjing chemical industry park, Jiangsu, Nanjing Patentee after: Nanjing Zhicheng clean energy Limited by Share Ltd. Address before: 210047 No. 118, Tai Fang Road, Nanjing chemical industry park, Jiangsu, Nanjing Patentee before: WISON (NANJING) CLEAN ENERGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |