CN204589076U - The resinous shale utilization system of a kind of coupled gas and solid thermal carriers - Google Patents
The resinous shale utilization system of a kind of coupled gas and solid thermal carriers Download PDFInfo
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- CN204589076U CN204589076U CN201520185931.3U CN201520185931U CN204589076U CN 204589076 U CN204589076 U CN 204589076U CN 201520185931 U CN201520185931 U CN 201520185931U CN 204589076 U CN204589076 U CN 204589076U
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Abstract
The utility model discloses the resinous shale utilization system of a kind of coupled gas and solid thermal carriers.Described system comprises crushing and screening unit, gaseous heat-carrier gas retort, washing saturator, gas-oil separation unit, heating unit, generator unit, First Heat Exchanger, solid heat carrier retort, the first roasting kiln, the second interchanger and production of construction materials unit.The utility model is by chip resinous shale for the production of shale oil, and residue carbonization gas is used for combustion power generation, and solid lime-ash, for the production of building material product, drastically increases the income of resinous shale processing industry.The economic benefit comparatively traditional gas thermal barrier oil-shale eduction process raising about 28.8% of the system adopting the resinous shale of coupled gas described in the utility model and solid thermal carriers to fully utilize.
Description
Technical field
The utility model belongs to the energy and chemical technology field, is specifically related to the resinous shale utilization system of a kind of coupled gas and solid thermal carriers.
Background technology
When the increasingly serious and international oil price of energy shortage problem is in high-order concussion, resinous shale is as one of the most promising substitute energy, and it develops and is subject to countries in the world and extensively payes attention to.At 5-10 from now on, world's shale oil annual production may increase to 2.0 × 10
7ton, effectively can alleviate crude oil shortage.China's oil shale reserves is converted to shale oil 47,600,000,000 tons, is 2 times of prospective oil.Greatly developing oil shale oil-refining technology to be conducive to alleviating China's oil resource supply and demand contradiction, providing practicable approach for realizing energy diversification.
At present, China just at industrial production or the mainly ground retorting technique of the retorting technique just among industrialization is established, comprises gaseous heat-carrier and hot solid carrier devolatilization technology.Gaseous heat-carrier technology can only process block resinous shale, and particle diameter is greater than 10mm.Meanwhile, in exploitation and shattering process, the granule wax shale (accounting for the 20-40% of raw material) that produces will go out of use.This processing mode not only needs to waste a large amount of soil and stacks these granule wax shales, and will cause the profligacy of energy resource.
Consider that granule wax shale (<10mm) meets the requirement of hot solid carrier devolatilization technology to resinous shale particle diameter.Contrast gaseous heat-carrier retorting technique, the oily yield of hot solid carrier devolatilization technology can reach 90%-96%, and resinous shale utilization ratio is up to 100%, and the water loss of production process is little, and waste water and dregs quantity discharged is little.This technology needs power consumption and adds productive expense, is its shortcoming.So the best mode utilized resinous shale is by resinous shale gaseous heat-carrier retorting technique larger for particle diameter, granule wax shale adopts hot solid carrier devolatilization technology.So both can improve the resource efficiency of gaseous heat-carrier retorting technique, also can solve the large problem of solid thermal carriers power consumption, improve the economic benefit of process.
Oil-shale eduction system of the prior art, process schematic representation as shown in Figure 1.Comprise crushing and screening unit 1, gaseous heat-carrier gas retort 2, washing saturator 3, gas-oil separation unit 4, heating unit 5 and generator unit 6, through resinous shale raw material 7 after break process, filter out resinous shale that particle diameter is greater than 10mm to pass into gaseous heat-carrier gas retort 2 and carry out dry distillation reactor, produce the first outlet of still gas 10; First outlet of still gas 10 enters to obtain washing saturator 3 and gas-oil separation unit 4 more successively, obtains the first shale oil gas 15 and the second shale oil 16 respectively; Be separated the carbonization gas 17 obtained by gas-oil separation unit 4, be divided into two portions: a part is as circulation carbonization gas 18, and after heating unit 5 preheating, circulation enters gaseous heat-carrier gas retort 2; Another part, as burning carbonization gas, enters generator unit 6, produces electric power 23.
Summary of the invention
For solving the shortcoming and defect part of prior art, the purpose of this utility model is the resinous shale utilization system providing a kind of coupled gas and solid thermal carriers.
For achieving the above object, the utility model adopts following technical scheme:
A resinous shale utilization system for coupled gas and solid thermal carriers, described system comprises crushing and screening unit, gaseous heat-carrier gas retort, washing saturator, gas-oil separation unit, heating unit, generator unit, First Heat Exchanger, solid heat carrier retort, the first roasting kiln, the second interchanger and production of construction materials unit;
Resinous shale is separated into particle diameter >=10mm and particle diameter < 10mm two portions by described crushing and screening unit, described crushing and screening unit is provided with the entrance of resinous shale raw material, the outlet of crushing and screening unit is divided into two passages, passage by pipeline and gaseous heat-carrier gas retort >=the resinous shale feed(raw material)inlet of 10mm is connected, another passage is connected with First Heat Exchanger by pipeline, and the outlet of First Heat Exchanger is connected with the resinous shale feed(raw material)inlet being less than 10mm of solid heat carrier retort by pipeline;
First outlet of still gas outlet of described gaseous heat-carrier gas retort is connected with the outlet of still gas entrance of washing saturator by pipeline, and the first lime-ash outlet of gaseous heat-carrier gas retort is connected with production of construction materials lime-ash entrance by pipeline; First clean gas outlet passage of washing saturator is purified after implication mixes by pipeline and second of solid heat carrier retort and is connected with the implication entrance that purifies of gas-oil separation unit, washing saturator is provided with the first gas inlet, and the main air outlet of washing saturator is connected with the main air entrance of gaseous heat-carrier gas retort by pipeline; The burning carbonization gas outlet of gas-oil separation unit is connected with the burning carbonization gas entrance of heating unit by pipeline, and the outlet of the power carbonization gas of gas-oil separation unit is connected with the power carbonization gas entrance of generator unit by pipeline; The circulation carbonization gas outlet of gas-oil separation unit is connected with the circulation carbonization gas entrance of heating unit by pipeline; The thermal cycling carbonization gas outlet of heating unit is connected with the circulation carbonization gas entrance of gaseous heat-carrier gas retort by pipeline;
The preheat oil shale outlet of described First Heat Exchanger is connected with the resinous shale entrance of solid heat carrier retort by pipeline, and semicoke and the ash mixture of solid heat carrier retort flow through pipeline and be connected with the entrance of the semicoke ash mixture stream of the first roasting kiln; The circulation lime-ash outlet of the first roasting kiln is connected with the circulation lime-ash entrance of solid heat carrier retort by pipeline, and the residue lime-ash outlet of the first roasting kiln is connected with the lime-ash entrance of the second interchanger by pipeline; Second lime-ash outlet of the second interchanger is connected with the lime-ash entrance of production of construction materials unit by pipeline; 3rd exhanst gas outlet of the first roasting kiln is connected with the smoke inlet of First Heat Exchanger by pipeline;
The second described interchanger is provided with the second gas inlet, and the 3rd air vout after preheating is connected with the gas inlet of the first roasting kiln.
Preferably, described heating unit comprises process furnace and the 3rd interchanger;
Described heating unit is provided with the 4th gas inlet, and the 7th flue gas outlet of process furnace is connected by the smoke inlet of pipeline with the 3rd interchanger.
Preferably, described gas-oil separation unit comprises washing tower, cooling tower, electric fishing case and the first mixing tank;
Described gas-oil separation unit is provided with the 4th and purifies implication entrance, and washing tower the first washing carbonization gas is out connected with the washing gas entrance of cooling tower by pipeline; Washing tower the first oil-water mixture outlet is out divided into two passages, and a passage is connected with the first washing water inlet of the first water cooler by pipeline, and another passage is connected with the page 3 rock oil-in of the first mixing tank by pipeline; Cooling tower the second washing carbonization gas is out connected with the washing gas entrance of electric fishing case by pipeline; Cooling tower the second oil-water mixture outlet is out divided into two passages, and a passage is connected with the 3rd washing water inlet of the second water cooler by pipeline, and another passage is connected with the 4th shale oil entrance of the first mixing tank by pipeline; Electric fishing case carbonization gas is out divided into three passages, a passage is connected with the burning carbonization gas entrance of process furnace by pipeline, a passage is connected with the circulation carbonization gas entrance of process furnace by pipeline, and remaining is connected with the power carbonization gas entrance of generator unit; Electric fishing case the 5th shale oil is out connected with the 5th shale oil entrance of the first mixing tank by pipeline.
Preferably, described generator unit comprises the second roasting kiln, air compressor, turbine, steam turbines, waste-heat recovery device and the second mixing tank;
Described generator unit is provided with power carbonization gas entrance, 4th flue gas of the second roasting kiln is connected with the smoke inlet of turbine by pipeline, air compressor is provided with the 5th gas inlet, and the 6th air vout of air compressor is connected by the gas inlet of pipeline with the second roasting kiln; The outlet of the 5th flue gas of turbine is connected with the smoke inlet of waste-heat recovery device by pipeline; The vapour outlet of waste-heat recovery device is connected with the steam-in of steam turbines by pipeline; The water of condensation of steam turbines is connected with the fresh water inlet of waste-heat recovery device by pipeline.
The technical process of the resinous shale utilization system of coupled gas described in the utility model and solid thermal carriers comprises the steps:
Resinous shale raw material is after crushing and screening unit, and the resinous shale that screening obtains particle diameter >=10mm enters gaseous heat-carrier gas retort; Solid heat carrier retort is entered after the resinous shale of particle diameter < 10mm and smoke pre-heating, gaseous heat-carrier gas retort is worked off one's feeling vent one's spleen and to be mixed with working off one's feeling vent one's spleen of producing of solid heat carrier retort after washing saturator washing, then enters gas-oil separation unit;
The shale oil that gas-oil separation unit obtains is as international sale, and a gas part for generation is used for heating cycle carbonization gas as burning gas, and a part is as circulation carbonization gas, remaining for combustion power generation;
The heat of solid heat carrier retort is realized by circulation lime-ash, and remaining lime-ash is for the production of building materials.
Preferably, the resinous shale particle diameter entering gaseous heat-carrier gas retort described in is 10 ~ 75mm.
Preferably, the pyrolysis temperature of described gaseous heat-carrier gas retort is 460 ~ 560 DEG C, and pressure is 0.1MPa.
Preferred, the pyrolysis temperature of described gaseous heat-carrier gas retort is 520 DEG C.
Preferably, the pyrolysis temperature of described solid heat carrier retort is 460 ~ 540 DEG C, and pressure is 0.1MPa.
Preferred, the pyrolysis temperature of described solid heat carrier retort is 500 DEG C.
Preferably, the temperature of described circulation carbonization gas is 550 ~ 600 DEG C, and pressure is 0.1MPa.
Preferably, described circulation destructive distillation tolerance is 350 ~ 450Nm
3/ (t resinous shale).
Preferably, described smoke pre-heating temperature is 90 ~ 150 DEG C.
Preferred, smoke pre-heating temperature is 120 DEG C.
Compared with prior art, the utility model has the following advantages and beneficial effect:
(1) utilize the unavailable small-particle of a large amount of gaseous heat-carrier gas retorts at present to produce shale oil, " turning waste into wealth ", reduce the quantity discharged of solid waste in oil shale distillation process, decrease and stack land area and environmental pollution.The more important thing is the resinous shale utilization ratio that can improve 10-20%, increase substantially process economy benefit;
(2) by generating after the mixing of the carbonization gas of two kinds of gas retorts, lime-ash process produced, for the production of material of construction, all effectively can improve the economic benefit of the traditional oils shale course of processing.
Accompanying drawing explanation
Fig. 1 is the process schematic representation of traditional gas thermal barrier oil-shale eduction process.Wherein 1 is crushing and screening unit, and 2 is gaseous heat-carrier gas retort, and 3 is washing saturator, and 4 is gas-oil separation unit, and 5 is heating unit, and 6 is generator unit; 7-23 is logistics numbering, and wherein 7 is resinous shale raw material, and 8 is the resinous shale of particle diameter >=10mm, and 9 are less than the resinous shale of 10mm for particle diameter, and 10 is the first outlet of still gas; 11 is the first lime-ash, and 12 is the first air, and 13 is first purify implication, and 14 is main air, 15 is the first shale oil, and 16 is the second shale oil, and 17 is carbonization gas, and 18 is circulation carbonization gas, 19 is burning carbonization gas, and 20 is power carbonization gas, and 21 is the first flue gas, and 22 is thermal cycling carbonization gas; 23 is electric power.
Fig. 2 is the process frame chart of the resinous shale utilization system of coupled gas described in the utility model and solid thermal carriers.Wherein 24 is First Heat Exchanger, and 25 is solid heat carrier retort, and 26 is the first roasting kiln, and 27 is the second interchanger, and 28 is production of construction materials unit; 29-41 is logistics numbering, and wherein 29 is the resinous shale of preheating, and 30 is the second flue gas, and 31 is second purify implication, and 32 is the 3rd purify implication, and 33 is the 4th purify implication; 34 is the mixture flow of semicoke and lime-ash, and 35 is circulation lime-ash, and 36 is residue lime-ash, and 37 is the 3rd flue gas, and 38 is the second air, and 39 is the 3rd air, and 40 is the second lime-ash, and 41 is building material product.The logistics that all the other numberings are identical with same reference numeral in Fig. 1.
Fig. 3 is the process flow sheet of the resinous shale utilization system of coupled gas described in the utility model and solid thermal carriers.Wherein 42 is disintegrating apparatus, and 43 is screening plant, and 44 is multi-cyclone, 45 is process furnace, and 46 is the 3rd interchanger, and 47 is washing tower, 48 is cooling tower, and 49 is electric fishing case, and 50 is the first mixing tank, 51 is the first water cooler, and 52 is the second water cooler, and 53 is the second roasting kiln, 54 is air compressor, and 55 is turbine, and 56 is steam turbines, 57 is waste-heat recovery device, and 58 is the second mixing tank, 59-84 is logistics numbering, wherein 59 is broken chip shale, 60 is the second outlet of still gas, 61 is the 4th air, 62 is the first washing carbonization gas, 63 is the second washing carbonization gas, 64 is page 3 rock oil, 65 is the 4th shale oil, 66 is the 5th shale oil, 67 is the first washing water, 68 is the second washing water, 69 is the 3rd washing water, 70 is the 4th washing water, 71 is the first oil-water mixture, 72 is the second oil-water mixture, 73 is the 5th air, 74 is the 6th air, 75 is the 4th flue gas, 76 is the 5th flue gas, 77 is steam, 78 is the 6th flue gas, 79 is water of condensation, 80 is fresh water, 81 is the 7th stack gas, 82-84 is electric logistics.The logistics that all the other numberings are identical with same reference numeral in Fig. 2.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1
The resinous shale utilization system process schematic representation of coupled gas described in the utility model and solid thermal carriers as shown in Figure 2, comprise crushing and screening unit 1, gaseous heat-carrier gas retort 2, washing saturator 3, gas-oil separation unit 4, heating unit 5 and generator unit 6, First Heat Exchanger 24, solid heat carrier retort 25, first roasting kiln 26, second interchanger 27 production of construction materials unit 28.
Described crushing and screening unit 1 is provided with the entrance of resinous shale raw material 7, and the outlet of crushing and screening unit 1 is divided into two passages, passage by pipeline and gaseous heat-carrier gas retort 2 >=resinous shale raw material 8 entrance of 10mm is connected; Another passage is connected with First Heat Exchanger 24 by pipeline, and the outlet of First Heat Exchanger 24 is connected with resinous shale raw material 9 entrance being less than 10mm of solid heat carrier retort 25 by pipeline;
First outlet of still gas outlet of described gaseous heat-carrier gas retort 2 is connected with the outlet of still gas entrance of washing saturator 3 by pipeline; First lime-ash outlet of gaseous heat-carrier gas retort 2 is connected with production of construction materials unit 28 lime-ash entrance by pipeline; First of washing saturator 3 purifies after implication exit passageway purifies implication mixing by pipeline and second of solid thermophore gas retort 25 and is connected with the implication entrance that purifies of gas-oil separation unit 4; Washing saturator 3 is provided with the first gas inlet, and the main air outlet of washing saturator 3 is connected with the main air entrance of gaseous heat-carrier gas retort 2 by pipeline; The burning carbonization gas outlet of gas-oil separation unit 4 is connected with the burning carbonization gas entrance of heating unit 5 by pipeline; The outlet of the power carbonization gas of gas-oil separation unit 4 is connected with the power carbonization gas entrance of generator unit 6 by pipeline; The outlet of the circulation carbonization gas of gas-oil separation unit 4 is connected with the circulation carbonization gas entrance of heating unit 5 by pipeline; The thermal cycling carbonization gas outlet of heating unit 5 is connected with the circulation carbonization gas entrance of gaseous heat-carrier gas retort 2 by pipeline;
The preheat oil shale outlet of described First Heat Exchanger 24 is connected with the resinous shale entrance of solid heat carrier retort 25 by pipeline; Semicoke and the ash mixture of solid heat carrier retort 25 flow through pipeline and are connected with the entrance of the semicoke ash mixture stream of the first roasting kiln 26; The circulation lime-ash outlet of the first roasting kiln 26 is connected with the circulation lime-ash entrance of solid heat carrier retort 25 by pipeline; The residue lime-ash outlet of the first roasting kiln 26 is connected by the lime-ash entrance of pipeline with the second interchanger 27; Second lime-ash outlet of the second interchanger 27 is connected with the lime-ash entrance of production of construction materials unit 28 by pipeline; 3rd exhanst gas outlet of the first roasting kiln 26 is connected by the smoke inlet of pipeline with First Heat Exchanger 24;
The second described interchanger 27 is provided with the second gas inlet, and the 3rd air vout after preheating is connected with the gas inlet of the first roasting kiln 26.
Preferably, heating unit 5 comprises process furnace 45 and the 3rd interchanger 46;
Described heating unit 5 is provided with the 4th gas inlet, and the 7th flue gas outlet of process furnace 45 is connected by the smoke inlet of pipeline with the 3rd interchanger 46.
Preferably, described gas-oil separation unit 4 comprises washing tower 47, cooling tower 48, electric fishing case 49 and the first mixing tank 50;
Being provided with of described gas-oil separation unit 4 the 4th purifies implication entrance, and washing tower 47 the first washing carbonization gas is out connected with the washing gas entrance of cooling tower 48 by pipeline; Washing tower 47 the first oil-water mixture outlet is out divided into two passages, and a passage is connected by first washing water inlet of pipeline with the first water cooler 51, and another passage piping is connected with the page 3 rock oil-in of the first mixing tank 50; Cooling tower 48 the second washing carbonization gas is out connected with the washing gas entrance of electric fishing case 49 by pipeline; Cooling tower 48 the second oil-water mixture outlet is out divided into two passages, and a passage is connected with the 3rd washing water inlet of the second water cooler 52 by pipeline, and another passage piping is connected with the 4th shale oil entrance of the first mixing tank 50; Electric fishing case 49 carbonization gas is out divided into three passages, a passage is connected with the burning carbonization gas entrance of process furnace 45 by pipeline, a passage is connected with the circulation carbonization gas entrance of process furnace 45 by pipeline, and remaining is connected with the power carbonization gas entrance of generator unit; Electric fishing case 49 the 5th shale oil is out connected with the 5th shale oil entrance of the first mixing tank 50 by pipeline.
Preferably, generator unit comprises the second roasting kiln 53, air compressor 54, turbine 55, steam turbines 56, waste-heat recovery device 57 and the second mixing tank 58;
Described generator unit 6 is provided with power carbonization gas entrance, and the 4th flue gas of the second roasting kiln 53 is connected by the smoke inlet of pipeline with turbine 55; Air compressor 54 is provided with the 5th gas inlet, and air compressor 54 the 6th air vout is connected by the gas inlet of pipeline with the second roasting kiln 53; The outlet of the 5th flue gas of turbine 55 is connected by the smoke inlet of pipeline with waste-heat recovery device 57; The vapour outlet of waste-heat recovery device 57 is connected by the steam-in of pipeline with steam turbines 56; The water of condensation of steam turbines 56 is connected by the fresh water inlet of pipeline with waste-heat recovery device 57.
The process schematic representation adopting the resinous shale utilization system of coupled gas described in the utility model and solid thermal carriers as shown in Figure 3, specifically comprises the steps:
Resinous shale raw material 7 is after crushing and screening unit 1, and the resinous shale 8 that screening obtains particle diameter >=10mm enters gaseous heat-carrier gas retort 2; Particle diameter enters solid heat carrier retort 25 after being less than the resinous shale 9 of 10mm and the 3rd flue gas 37 preheating; Gaseous heat-carrier gas retort 2 working off one's feeling vent one's spleen of producing with solid heat carrier retort 25 after washing saturator 3 washs of working off one's feeling vent one's spleen 31 mixes, then enters gas-oil separation unit 4; The shale oil 16 that gas-oil separation unit 4 obtains as international sale, the gas of a generation part as circulation carbonization gas 18, a part as burning gas 19 for heating cycle carbonization gas, remaining for combustion power generation.The heat of solid heat carrier retort 25 is realized by circulation lime-ash 35; Remaining lime-ash 40 is for the production of building material product 41.
Contrasted from the resinous shale utilization system of gaseous heat-carrier oil-shale eduction system of the prior art and coupled gas described in the utility model and solid thermal carriers, chip shale for the production of shale oil, is achieved resources economy efficiency utilization by system described in the utility model.
The pyrolysis temperature of described gaseous heat-carrier gas retort is 460 ~ 560 DEG C, and pressure is 0.1MPa; Preferably, the pyrolysis temperature of gaseous heat-carrier gas retort is 520 DEG C; The pyrolysis temperature of described gaseous heat-carrier gas retort is 460 ~ 540 DEG C, and pressure is 0.1MPa; The temperature of described circulation carbonization gas is 550 ~ 600 DEG C, and pressure is 0.1MPa; Preferably, the pyrolysis temperature of solid heat carrier retort is 500 DEG C; Described circulation destructive distillation tolerance is 350 ~ 450Nm
3/ (t resinous shale); Described smoke pre-heating temperature is 90 ~ 150 DEG C; Preferred preheating temperature is 120 DEG C.
Embodiment 2
Specifically being implemented as follows of the resinous shale utilization system of coupled gas described in the utility model and solid thermal carriers:
The resinous shale utilization system of coupled gas described in the utility model and solid thermal carriers, comprise crushing and screening unit 1, gaseous heat-carrier gas retort 2, washing saturator 3, gas-oil separation unit 4, heating unit 5 and generator unit 6, First Heat Exchanger 24, solid heat carrier retort 25, first roasting kiln 26, second interchanger 27 production of construction materials unit 28, process schematic representation as shown in Figure 2.The concrete equipment of each process section as described in Example 1.
The material flow entering system described in the utility model is 375t/h, and the pyrolysis temperature of gaseous heat-carrier gas retort is 520 DEG C, and pressure is 0.1MPa; The pyrolysis temperature of solid heat carrier retort is 500 DEG C; Circulation destructive distillation tolerance is 400Nm
3/ (t resinous shale); Preheating temperature is 120 DEG C.The technical analysis of resinous shale and ultimate analysis are in table 1, and process flow sheet is as Fig. 3.
The technical analysis of table 1 resinous shale and ultimate analysis
(M, FC, V in table, and A represents the content of moisture in resinous shale, fixed carbon, volatile matter and ash respectively, ar represents as received basis, and ad represents air dried basis, and wt represents massfraction).
Compare existing gaseous heat-carrier oil-shale eduction process, the resinous shale utilization ratio of the resinous shale utilization system of coupled gas of the present invention and solid thermal carriers has brought up to 97.54% by original 77.79%, and yield of the product has brought up to 4.87% by 3.70%; When shale oil price is 3500 yuan/ton, income is original 1.25 times, and return on investment (ROI) brings up to 17.17% from 11.46%, improves 5.71%.
Embodiment 3
Specifically being implemented as follows of the resinous shale utilization system of coupled gas described in the utility model and solid thermal carriers:
The resinous shale utilization system of coupled gas described in the utility model and solid thermal carriers, comprise crushing and screening unit 1, gaseous heat-carrier gas retort 2, washing saturator 3, gas-oil separation unit 4, heating unit 5 and generator unit 6, First Heat Exchanger 24, solid heat carrier retort 25, first roasting kiln 26, second interchanger 27 production of construction materials unit 28, process schematic representation as shown in Figure 2.The concrete equipment of each process section as described in Example 1.
The material flow entering system described in the utility model is 500t/h, and the pyrolysis temperature of gaseous heat-carrier gas retort is 500 DEG C, and pressure is 0.1MPa; The pyrolysis temperature of solid heat carrier retort is 480 DEG C; Circulation destructive distillation tolerance is 360Nm
3/ (t resinous shale); Preheating temperature is 100 DEG C.The technical analysis of resinous shale and ultimate analysis are in table 2, and process flow sheet is as Fig. 3.
The technical analysis of table 2 resinous shale and ultimate analysis
(M, FC, V in table, and A represents the content of moisture in resinous shale, fixed carbon, volatile matter and ash respectively, ar represents as received basis, and ad represents air dried basis, and wt represents massfraction).
Compare existing gaseous heat-carrier oil-shale eduction process, coupled gas of the present invention and solid thermal are carried resinous shale utilization ratio and have been brought up to 97.87% by original 77.79%, and yield of the product has brought up to 4.92% by 3.70%; When shale oil price is 3500 yuan/ton, income is original 1.27 times, and return on investment (ROI) brings up to 17.42% from 11.46%, improves 5.96%.
Above-described embodiment is the utility model preferably embodiment; but embodiment of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (7)
1. the resinous shale utilization system of a coupled gas and solid thermal carriers, it is characterized in that, described system comprises crushing and screening unit, gaseous heat-carrier gas retort, washing saturator, gas-oil separation unit, heating unit, generator unit, First Heat Exchanger, solid heat carrier retort, the first roasting kiln, the second interchanger and production of construction materials unit;
Resinous shale is separated into particle diameter >=10mm and particle diameter < 10mm two portions by described crushing and screening unit, described crushing and screening unit is provided with the entrance of resinous shale raw material, the outlet of crushing and screening unit is divided into two passages, passage by pipeline and gaseous heat-carrier gas retort >=the resinous shale feed(raw material)inlet of 10mm is connected, another passage is connected with First Heat Exchanger by pipeline, the outlet of First Heat Exchanger by pipeline with the resinous shale feed(raw material)inlet being less than 10mm be connected;
First outlet of still gas outlet of described gaseous heat-carrier gas retort is connected with the outlet of still gas entrance of washing saturator by pipeline, and the first lime-ash outlet of gaseous heat-carrier gas retort is connected with production of construction materials lime-ash entrance by pipeline; First clean gas outlet passage of washing saturator is purified after implication mixes by pipeline and second of solid heat carrier retort and is connected with the implication entrance that purifies of gas-oil separation unit, washing saturator is provided with the first gas inlet, and the main air outlet of washing saturator is connected with the main air entrance of gaseous heat-carrier gas retort by pipeline; The burning carbonization gas outlet of gas-oil separation unit is connected with the burning carbonization gas entrance of heating unit by pipeline, and the outlet of the power carbonization gas of gas-oil separation unit is connected with the power carbonization gas entrance of generator unit by pipeline; The circulation carbonization gas outlet of gas-oil separation unit is connected with the circulation carbonization gas entrance of heating unit by pipeline; The thermal cycling carbonization gas outlet of heating unit is connected with the circulation carbonization gas entrance of gaseous heat-carrier gas retort by pipeline;
The preheat oil shale outlet of described First Heat Exchanger is connected with the resinous shale entrance of solid heat carrier retort by pipeline, and semicoke and the ash mixture of solid heat carrier retort flow through pipeline and be connected with the entrance of the semicoke ash mixture stream of the first roasting kiln; The circulation lime-ash outlet of the first roasting kiln is connected with the circulation lime-ash entrance of solid heat carrier retort by pipeline, and the residue lime-ash outlet of the first roasting kiln is connected with the lime-ash entrance of the second interchanger by pipeline; Second lime-ash outlet of the second interchanger is connected with the lime-ash entrance of production of construction materials unit by pipeline; 3rd exhanst gas outlet of the first roasting kiln is connected with the smoke inlet of First Heat Exchanger by pipeline;
The second described interchanger is provided with the second gas inlet, and the 3rd air vout after preheating is connected with the gas inlet of the first roasting kiln.
2. the resinous shale utilization system of a kind of coupled gas according to claim 1 and solid thermal carriers, is characterized in that, described heating unit comprises process furnace and the 3rd interchanger.
3. the resinous shale utilization system of a kind of coupled gas according to claim 2 and solid thermal carriers, it is characterized in that, described heating unit is provided with the 4th gas inlet, and the 7th flue gas outlet of process furnace is connected by the smoke inlet of pipeline with the 3rd interchanger.
4. the resinous shale utilization system of a kind of coupled gas according to claim 1 and solid thermal carriers, is characterized in that, described gas-oil separation unit comprises washing tower, cooling tower, electric fishing case and the first mixing tank.
5. the resinous shale utilization system of a kind of coupled gas according to claim 4 and solid thermal carriers, it is characterized in that, described gas-oil separation unit is provided with the 4th and purifies implication entrance, and washing tower the first washing carbonization gas is out connected with the washing gas entrance of cooling tower by pipeline; Washing tower the first oil-water mixture outlet is out divided into two passages, and a passage is connected with the first washing water inlet of the first water cooler by pipeline, and another passage is connected with the page 3 rock oil-in of the first mixing tank by pipeline; Cooling tower the second washing carbonization gas is out connected with the washing gas entrance of electric fishing case by pipeline; Cooling tower the second oil-water mixture outlet is out divided into two passages, and a passage is connected with the 3rd washing water inlet of the second water cooler by pipeline, and another passage is connected with the 4th shale oil entrance of the first mixing tank by pipeline; Electric fishing case carbonization gas is out divided into three passages, a passage is connected with the burning carbonization gas entrance of process furnace by pipeline, a passage is connected with the circulation carbonization gas entrance of process furnace by pipeline, and remaining is connected with the power carbonization gas entrance of generator unit; Electric fishing case the 5th shale oil is out connected with the 5th shale oil entrance of the first mixing tank by pipeline.
6. the resinous shale utilization system of a kind of coupled gas according to claim 1 and solid thermal carriers, it is characterized in that, described generator unit comprises the second roasting kiln, air compressor, turbine, steam turbines, waste-heat recovery device and the second mixing tank.
7. the resinous shale utilization system of a kind of coupled gas according to claim 6 and solid thermal carriers, it is characterized in that, described generator unit is provided with power carbonization gas entrance, 4th flue gas of the second roasting kiln is connected with the smoke inlet of turbine by pipeline, air compressor is provided with the 5th gas inlet, and the 6th air vout of air compressor is connected by the gas inlet of pipeline with the second roasting kiln; The outlet of the 5th flue gas of turbine is connected with the smoke inlet of waste-heat recovery device by pipeline; The vapour outlet of waste-heat recovery device is connected with the steam-in of steam turbines by pipeline; The water of condensation of steam turbines is connected with the fresh water inlet of waste-heat recovery device by pipeline.
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| CN201520185931.3U CN204589076U (en) | 2015-03-30 | 2015-03-30 | The resinous shale utilization system of a kind of coupled gas and solid thermal carriers |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104745216A (en) * | 2015-03-30 | 2015-07-01 | 华南理工大学 | System and process for comprehensive utilization for oil shale coupling gas heat carrier with solid heat carrier |
| CN105176552A (en) * | 2015-09-30 | 2015-12-23 | 东北电力大学 | Novel gas heat carrier retorting and gas power generation integrated device and technology |
| CN105694936A (en) * | 2016-02-24 | 2016-06-22 | 华南理工大学 | Full-particle oil shale refining system and process |
-
2015
- 2015-03-30 CN CN201520185931.3U patent/CN204589076U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104745216A (en) * | 2015-03-30 | 2015-07-01 | 华南理工大学 | System and process for comprehensive utilization for oil shale coupling gas heat carrier with solid heat carrier |
| CN105176552A (en) * | 2015-09-30 | 2015-12-23 | 东北电力大学 | Novel gas heat carrier retorting and gas power generation integrated device and technology |
| CN105694936A (en) * | 2016-02-24 | 2016-06-22 | 华南理工大学 | Full-particle oil shale refining system and process |
| WO2017143831A1 (en) * | 2016-02-24 | 2017-08-31 | 华南理工大学 | Full-particle oil shale refining system and process |
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