CN105036507A - Pyrolysis oil-gas-water synchronous condensing and oil-water separation recovery system and method - Google Patents
Pyrolysis oil-gas-water synchronous condensing and oil-water separation recovery system and method Download PDFInfo
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- CN105036507A CN105036507A CN201510484580.0A CN201510484580A CN105036507A CN 105036507 A CN105036507 A CN 105036507A CN 201510484580 A CN201510484580 A CN 201510484580A CN 105036507 A CN105036507 A CN 105036507A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Abstract
The invention discloses a pyrolysis oil-gas-water synchronous condensing and oil-water separation recovery system and method. The method comprises the following steps that dry oil-containing sludge is added into a pyrolysis reactor to generate pyrolysis oil and gas; the pyrolysis oil and gas is subjected to gas and solid separation through a cyclone separator; the purified pyrolysis oil and gas is pressurized through an oil-gas compressor, and is fed into an oil-gas-water cavity of an oil-gas-water synchronous condensing separator; pyrolysis oil gas and water is condensed on the surface of an oil-water separating membrane after being subjected to condensing heat exchange; generated water drips are transferred to a circulation cooling water cavity, enter a circulation cooling water tank through a circulation cooling water pump and further return to the circulation cooling water cavity; oil drips are recovered into an oil recovering tank through an oil drip discharging opening of the oil-gas-water cavity; non-condensable gas exhausted from the oil-gas-water cavity enters a non-condensable gas drying recovery system through an oil-gas pressure reducing valve and returns to a heating furnace as fuels. The system and the method have the advantages that the oil-water separation recovery is realized while the pyrolysis oil and gas is condensed; the condensing effect is good; the system and the method are applicable to the heat chemical treatment process of oil-containing sludge.
Description
Technical field
The present invention relates to the condensation of pyrolysis oil air water and oily water separation field, in particular, relate to the synchronous condensation of a kind of pyrolysis oil air water and oily water separation recovery system and method.
Background technology
Oily sludge thermochemical treatment is that oily sludge is heated to specified temp under certain condition, makes the organic substance decomposing production capacity in oily sludge.Under anaerobic pressure-fired condition, oily sludge transforms point two stages: the first stage is evaporation stage, and when temperature is lower than 350 DEG C, lower boiling light hydrocarbon evaporates from oily sludge; Subordinate phase is parallel-consecutive reaction stage, when temperature is more than 350 DEG C, mink cell focus starts cracking, and when temperature reaches about 400 DEG C, molecule can generate free radical due to thermal activation, and then there is a series of free radical reaction, carry out towards the cracking direction generating small molecules hydro carbons on the one hand, the condensation direction on the other hand to the raw charcoal of coking is carried out, and finally generates oil, water, non-condensable gas and coke four kinds of products, reaction conditions is different, and the ratio of product is different.
Oil gas condensation and oily water separation are the critical process of oily sludge thermochemical treatment, the rate of recovery of this process influence oil product and oil quality.Traditional pyrolysis petroleum vapor recovery adopts the mode of water-cooled or air cooling, and the condensation product of recovery is oil-water mixture, still needs further process.Patent of invention " a kind of greasy filth pyrolysis resource utilization method and device (CN104692607A) " adopts condensed in two stages device to carry out condensation to pyrolysis oil gas, first step water cooler condensation oil product, second-stage cooler water of condensation.Utility model patent " integral system (CN202030712U) of greasy filth pyrolysis regenerated fuel oil " utilizes condensing heat exchanger to reclaim oil product.
If heavy constituent hydro carbons is more in pyrolysis oil gas, then the oil product of condensation is easily coalescent in condenser pipe, blocking pipeline, in greasy filth pyrolysis installation engineering operation process, often run into problems.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, there is provided a kind of while pyrolysis oil gas condensation, realize oily water separation and reclaim oil product, after being separated in water oleaginousness lower than 5mg/L, condensation effect is good, oily water separation is fast, compact construction, the synchronous condensation of pyrolysis oil air water that cost-saving, easy to operate, efficiency is high and oily water separation recovery system and method.
The object of the invention is to be achieved through the following technical solutions.
The synchronous condensation of pyrolysis oil air water of the present invention and oily water separation recovery system, comprise process furnace, be arranged at the pyrolysis reactor on process furnace, the cyclonic separator be connected with pyrolysis reactor discharge port, the gas discharge outlet of described cyclonic separator is connected with the synchronous condensation separator of oil gas water by oil gas compressor, the synchronous condensation separator of described oil gas water is by oil gas water cavity, circulating cooling water cavity, the oily water separation film be arranged between oil gas water cavity and circulating cooling water cavity is formed, the non-condensable gas relief outlet that described oil gas water cavity top is arranged is connected with oil gas reducing valve, the non-condensable gas dried recovered system be connected with described process furnace, the oil droplet relief outlet that bottom is arranged and pyrolysis gas admission port are connected to oil recovery tank and described oil gas compressor, the water coolant admission port that described circulating cooling water cavity top is arranged is connected with circulating cooling water tank, the cooling water outlet that bottom is arranged is connected with described circulating cooling water tank by circulating cooling water pump.
Described circulating cooling water tank is provided with automatic overflow mouth.
Described oily water separation film by stop oily water separation tunica fibrosa or ceramic membrane wherein one form.
Described non-condensable gas dried recovered system is adsorption filtration formula equipment, inner filling calcium oxide or molecular sieve dehydration material.
Object of the present invention also realizes by following technical scheme.
The synchronous condensation of pyrolysis oil air water of the present invention and oily water separation recovery method, comprise the following steps:
(1) oily sludge of mummification is joined in pyrolysis reactor, raised temperature to 450-650 DEG C, make oily sludge pyrolysis under anaerobic, produce pyrolysis oil gas.
(2) the pyrolysis oil gas in described step (1) is discharged from pyrolysis reactor, carries out gas solid separation through described cyclonic separator.
(3) the pyrolysis oil gas after above-mentioned steps (2) purification is after oil gas compressor boost, send in the oil gas water cavity of the synchronous condensation separator of oil gas water, pyrolysis oil air water after condensing heat-exchange at oily water separation film surface condensation, non-condensable gas is discharged by the non-condensable gas relief outlet on oil gas water cavity top, the water droplet generated is transferred in circulating cooling water cavity, oil droplet sticks to oily water separation film surface, assemble under gravity and be settled down to bottom, being entered to oil recovery tank by the oil droplet relief outlet bottom oil gas water cavity.
(4) non-condensable gas of discharging from oil gas water cavity in above-mentioned steps (3) passes through oil gas reducing valve, and after reducing pressure, enter non-condensable gas dried recovered system, non-condensable gas after drying gets back to process furnace as fuel.
(5) in above-mentioned steps (3), condensation enters the water droplet of circulating cooling water cavity, circulating cooling water tank is entered into by circulating cooling water pump, and then turn back to circulating cooling water cavity as recirculated cooling water, when circulating cooling water tank water level exceedes spilling water level, circulating cooling water tank Auto-drainage.
Compared with prior art, the beneficial effect that technical scheme of the present invention is brought is:
(1) oily water separation film is applied to the solidifying and oil water separation process of pyrolysis oil gas synchronous cold by the present invention, oil gas condensation and oily water separation can be realized fast, decrease the cost of oily water treatment after being separated, water outlet oleaginousness≤5mg/L can be ensured, avoid the use of a large amount of medicament in treating processes, save cost of disposal.
(2) in the present invention, the oil gas water cavity top of the synchronous condensation separator of oil gas water is provided with non-condensable gas relief outlet, and non-condensable gas relief outlet connects oil gas reducing valve, and post-decompression non-condensable gas returns to process furnace as fuel after reclaiming dehumidification system process.
(3) in the present invention, circulating cooling water tank arranges automatic overflow mouth, and when exceeding spilling water level, circulating cooling water tank can Auto-drainage.
(4) present system simple, compact construction, easy to operate, strong shock resistance, can meet the actual demand that oily sludge pyrolysis oil gas condensation and oily water separation are reclaimed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Reference numeral: 1 process furnace 2 pyrolysis reactor 3 cyclonic separator 4 oil gas compressor 5 oil gas water synchronous condensation separator 6 oil gas water cavity 7 oily water separation film 8 circulating cooling water cavity 9 circulating cooling water pump 10 oil recovery tank 11 circulating cooling water tank 12 non-condensable gas relief outlet 13 oil droplet relief outlet 14 non-condensable gas dried recovered system 15 oil gas reducing valve 16 automatic overflow mouth 17 pyrolysis gas admission port 18 water coolant admission port 19 cooling water outlet
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the synchronous condensation of pyrolysis oil air water of the present invention and oily water separation recovery system, comprise process furnace 1, be arranged at the pyrolysis reactor 2 on described process furnace 1, the cyclonic separator 3 be connected with pyrolysis reactor 2 discharge port, the gas discharge outlet of described cyclonic separator 3 is connected with the synchronous condensation separator 5 of oil gas water by oil gas compressor 4, the synchronous condensation separator 5 of described oil gas water is by oil gas water cavity 6, circulating cooling water cavity 8, the oily water separation film 7 be arranged between described oil gas water cavity 6 and circulating cooling water cavity 8 is formed, described oily water separation film 7 by obstruction oily water separation tunica fibrosa or ceramic membrane wherein one form, the non-condensable gas dried recovered system 14 that the non-condensable gas relief outlet 12 that described oil gas water cavity 6 top is arranged is connected with oil gas reducing valve 15, is connected with described process furnace 1, the oil droplet relief outlet 13 that bottom is arranged and pyrolysis gas admission port 17 are connected to oil recovery tank 10 and described oil gas compressor 4, described non-condensable gas dried recovered system 14 is adsorption filtration formula equipment, inner filling calcium oxide or molecular sieve dehydration material, the water coolant admission port 18 that described circulating cooling water cavity 8 top is arranged is connected with circulating cooling water tank 11, the cooling water outlet 19 that bottom is arranged is connected with described circulating cooling water tank 11 by circulating cooling water pump 9, and described circulating cooling water tank 11 is provided with automatic overflow mouth 16.
The synchronous condensation of pyrolysis oil air water of the present invention and oily water separation recovery method, comprise the following steps: first, the oily sludge of mummification is joined in pyrolysis reactor 2, slow rising pyrolysis reactor 2 temperature to 450-650 DEG C, make oily sludge pyrolysis under anaerobic, produce pyrolysis oil gas, the pyrolysis oil temperature degree of discharging from pyrolysis reactor 2 is at about 300-450 DEG C, then, the high temperature pyrolysis reaction gas of discharging from pyrolysis reactor 2 carries certain solid particulate matter secretly, carries out gas solid separation through cyclonic separator 3, secondly, pyrolysis gas after purification is after oil gas compressor 4 carries out supercharging, send in the oil gas water cavity 6 of the synchronous condensation separator 5 of oil gas water, with recirculated cooling water countercurrent flow, described oily water separation film 7 can be used as heat-transfer surface, oil gas water synchronous condensation separator 5 opposite side is circulating cooling water cavity 8, oily water separation film surface is adsorbed on through condensed profit, because oily water separation film 7 has special structure, water can pass through this film, oil not by, under pressure, the water droplet generated enters circulating cooling water cavity 8 from oil gas water cavity 6, the oil droplet being adsorbed in oily water separation film 7 surface is assembled by action of gravity and is settled down to bottom, enter in oil recovery tank 10 by the oil droplet relief outlet 13 bottom oil gas water cavity 6, the non-condensable gas of discharging from oil gas water cavity 6 passes through oil gas reducing valve 15, and after reducing pressure, enter non-condensable gas dried recovered system 14, non-condensable gas after drying gets back to process furnace 1 as fuel, finally, enter the water droplet of circulating cooling water cavity 8, enter into circulating cooling water tank 11 by circulating cooling water pump 9, and then turn back to circulating cooling water cavity 8 as recirculated cooling water, when circulating cooling water tank 11 water level exceedes spilling water level, circulating cooling water tank 11 can Auto-drainage.
The present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic, is not restrictive, and those of ordinary skill in the art are under the present invention's enlightenment; also can make the concrete conversion of a lot of form, these all belong within protection scope of the present invention.
Claims (5)
1. the synchronous condensation of pyrolysis oil air water and oily water separation recovery system, comprise process furnace, be arranged at the pyrolysis reactor on process furnace, the cyclonic separator be connected with pyrolysis reactor discharge port, it is characterized in that, the gas discharge outlet of described cyclonic separator is connected with the synchronous condensation separator of oil gas water by oil gas compressor, the synchronous condensation separator of described oil gas water is by oil gas water cavity, circulating cooling water cavity, the oily water separation film be arranged between oil gas water cavity and circulating cooling water cavity is formed, the non-condensable gas relief outlet that described oil gas water cavity top is arranged is connected with oil gas reducing valve, the non-condensable gas dried recovered system be connected with described process furnace, the oil droplet relief outlet that bottom is arranged and pyrolysis gas admission port are connected to oil recovery tank and described oil gas compressor, the water coolant admission port that described circulating cooling water cavity top is arranged is connected with circulating cooling water tank, the cooling water outlet that bottom is arranged is connected with described circulating cooling water tank by circulating cooling water pump.
2. the synchronous condensation of pyrolysis oil air water according to claim 1 and oily water separation recovery system, is characterized in that, described circulating cooling water tank is provided with automatic overflow mouth.
3. the synchronous condensation of pyrolysis oil air water according to claim 1 and oily water separation recovery system, is characterized in that, described oily water separation film by stop oily water separation tunica fibrosa or ceramic membrane wherein one form.
4. the synchronous condensation of pyrolysis oil air water according to claim 1 and oily water separation recovery system, is characterized in that, described non-condensable gas dried recovered system is adsorption filtration formula equipment, inner filling calcium oxide or molecular sieve dehydration material.
5. the synchronous condensation of pyrolysis oil air water and an oily water separation recovery method, is characterized in that, comprise the following steps:
(1) oily sludge of mummification is joined in pyrolysis reactor, raised temperature to 450-650 DEG C, make oily sludge pyrolysis under anaerobic, produce pyrolysis oil gas.
(2) the pyrolysis oil gas in described step (1) is discharged from pyrolysis reactor, carries out gas solid separation through described cyclonic separator.
(3) the pyrolysis oil gas after above-mentioned steps (2) purification is after oil gas compressor boost, send in the oil gas water cavity of the synchronous condensation separator of oil gas water, pyrolysis oil air water after condensing heat-exchange at oily water separation film surface condensation, non-condensable gas is discharged by the non-condensable gas relief outlet on oil gas water cavity top, the water droplet generated is transferred in circulating cooling water cavity, oil droplet sticks to oily water separation film surface, assemble under gravity and be settled down to bottom, being entered to oil recovery tank by the oil droplet relief outlet bottom oil gas water cavity.
(4) non-condensable gas of discharging from oil gas water cavity in above-mentioned steps (3) passes through oil gas reducing valve, and after reducing pressure, enter non-condensable gas dried recovered system, non-condensable gas after drying gets back to process furnace as fuel.
(5) in above-mentioned steps (3), condensation enters the water droplet of circulating cooling water cavity, circulating cooling water tank is entered into by circulating cooling water pump, and then turn back to circulating cooling water cavity as recirculated cooling water, when circulating cooling water tank water level exceedes spilling water level, circulating cooling water tank Auto-drainage.
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Cited By (9)
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| CN105505430A (en) * | 2015-11-30 | 2016-04-20 | 青岛科技大学 | Waste rubber continuous cracking method and device |
| CN106746477A (en) * | 2016-12-13 | 2017-05-31 | 北京城市排水集团有限责任公司 | A kind of urban wastewater treatment firm Treatment of Sludge and resource utilization method |
| CN107261718A (en) * | 2017-07-11 | 2017-10-20 | 盐城绿城环保科技有限公司 | A kind of organic solid waste Non-oxygen pyrolytic solid liquid gas three-phase separation device and method |
| CN108033636A (en) * | 2017-12-15 | 2018-05-15 | 中海油能源发展股份有限公司 | A kind of product oil storage field sewage disposal system and its sewage water treatment method |
| CN108726832A (en) * | 2018-06-01 | 2018-11-02 | 大庆高新区百世环保科技开发有限公司 | The oily sludge object processing system that constant pressure realizes Energy Saving Control is adjusted by PID |
| CN110436740A (en) * | 2019-08-29 | 2019-11-12 | 浙江科技学院 | A kind of sludge classification desiccation gasification coupling coal generating system and its process |
| CN111363581A (en) * | 2020-03-23 | 2020-07-03 | 黄颖媛 | Waste gas treatment device for thermal cracking recovery of waste tires |
| CN112794611A (en) * | 2019-11-13 | 2021-05-14 | 中国科学院理化技术研究所 | Oily sludge treatment system |
| CN112794600A (en) * | 2019-11-13 | 2021-05-14 | 中国科学院理化技术研究所 | Continuous oily sludge treatment system |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105505430A (en) * | 2015-11-30 | 2016-04-20 | 青岛科技大学 | Waste rubber continuous cracking method and device |
| CN105505430B (en) * | 2015-11-30 | 2018-02-02 | 青岛科技大学 | The continuous cracking method and its device of a kind of waste old |
| CN106746477A (en) * | 2016-12-13 | 2017-05-31 | 北京城市排水集团有限责任公司 | A kind of urban wastewater treatment firm Treatment of Sludge and resource utilization method |
| CN106746477B (en) * | 2016-12-13 | 2019-06-25 | 北京城市排水集团有限责任公司 | A kind of processing of urban sewage treatment plant sludge and resource utilization method |
| CN107261718A (en) * | 2017-07-11 | 2017-10-20 | 盐城绿城环保科技有限公司 | A kind of organic solid waste Non-oxygen pyrolytic solid liquid gas three-phase separation device and method |
| CN108033636A (en) * | 2017-12-15 | 2018-05-15 | 中海油能源发展股份有限公司 | A kind of product oil storage field sewage disposal system and its sewage water treatment method |
| CN108726832A (en) * | 2018-06-01 | 2018-11-02 | 大庆高新区百世环保科技开发有限公司 | The oily sludge object processing system that constant pressure realizes Energy Saving Control is adjusted by PID |
| CN110436740A (en) * | 2019-08-29 | 2019-11-12 | 浙江科技学院 | A kind of sludge classification desiccation gasification coupling coal generating system and its process |
| CN110436740B (en) * | 2019-08-29 | 2024-04-16 | 浙江科技学院 | Sludge grading drying gasification coupling coal-fired power generation system and process method thereof |
| CN112794611A (en) * | 2019-11-13 | 2021-05-14 | 中国科学院理化技术研究所 | Oily sludge treatment system |
| CN112794600A (en) * | 2019-11-13 | 2021-05-14 | 中国科学院理化技术研究所 | Continuous oily sludge treatment system |
| CN112480952A (en) * | 2020-03-23 | 2021-03-12 | 黄颖媛 | Waste gas treatment device for thermal cracking recovery of waste tires |
| CN112552944A (en) * | 2020-03-23 | 2021-03-26 | 黄颖媛 | Waste gas treatment device for thermal cracking recovery of waste tires |
| CN111363581B (en) * | 2020-03-23 | 2020-12-25 | 乐清市川嘉电气科技有限公司 | Waste gas treatment device for thermal cracking recovery of waste tires |
| CN112552944B (en) * | 2020-03-23 | 2022-07-22 | 苏州双福智能科技有限公司 | Waste gas treatment device for thermal cracking recovery of waste tires |
| CN111363581A (en) * | 2020-03-23 | 2020-07-03 | 黄颖媛 | Waste gas treatment device for thermal cracking recovery of waste tires |
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