CN104479727B - A kind of recovery process responding to adsorption desorption oil shale distillation gas lightweight oil - Google Patents
A kind of recovery process responding to adsorption desorption oil shale distillation gas lightweight oil Download PDFInfo
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- CN104479727B CN104479727B CN201410713755.6A CN201410713755A CN104479727B CN 104479727 B CN104479727 B CN 104479727B CN 201410713755 A CN201410713755 A CN 201410713755A CN 104479727 B CN104479727 B CN 104479727B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G5/00—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas
- C10G5/02—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas with solid adsorbents
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G5/00—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas
- C10G5/06—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas by cooling or compressing
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Abstract
The present invention is a kind of recovery process responding to adsorption desorption oil shale distillation gas lightweight oil, be characterized in: the first identical synchronised recycling tank of structure and the second synchronised recycling tank are set simultaneously, the carbon fiber being used for oil vapour in adsorption gas gas or graphite granule filler is loaded in each tank, induction heating producer arranged respectively by each tank, two tanks share a gas condenser, light oil tank, induction heating controller, gas gas-holder, cooling tower and recycle pump, when the first synchronised recycling tank adsorption gas oil vapour, second synchronised recycling tank carries out induction heating desorption and recycling carbon fibre or graphite granule filler, stop when in the first synchronised recycling tank, filling adsorption reaches capacity sending into coal mine gas, now the second synchronised recycling tank starts adsorption gas oil vapour, and the first synchronised recycling tank starts to carry out induction heating desorption and recycling carbon fibre or graphite granule filler simultaneously, repeat to hocket, continuous realization reclaims lightweight oil from destructive distillation coal mine gas.
Description
Technical field
The present invention relates to oil shale retorting oil refining technical field, is a kind of recovery process responding to adsorption desorption oil shale distillation gas lightweight oil.
Background technology
Oil shale distillation, temperature required by being heated in the environment of resinous shale as isolated air, make petrologen generation pyrolytic reaction, generate destructive distillation product-shale oil and destructive distillation coal mine gas, shale oil not only directly as the liquid fuel for marine turbine, also can be passed through rectification process and produces the liquid fuel such as gasoline and diesel oil.At present, in industry, shale oil recovery generally adopts the method for destructive distillation oil gas being carried out to condensation separation, destructive distillation oil gas is carried out cooling process, shale oil liquefy is separated out, remaining as noncondensing methane gas.Therefore, the temperature that carbonizing gas is cooled is lower, the shale oil that condensation obtains is also more, oil recovery rate is also higher, but the gas tolerance needing condensation in distillation process is very large, and along with the reduction of unit methane gas oleaginousness, condensing temperature also reduces, need the cold paid also to increase, certainly will will consume mass energy.Consider from macroeconomic in current industry, shale oil recovery technique outlet temperature is controlled at 40-60 DEG C, if temperature is low again, certainly will will consume the more energy, increase oily harvest originally.This directly causes, in destructive distillation end product coal mine gas, not reclaiming lightweight oil phenomenon containing a large amount of.On the other hand, shale oil belongs to the mixture of multiple hydrocarbon polymer, known from its physicochemical characteristics, vapor pressure is higher at normal temperatures for its light constituent (solar oil), has the feature of highly volatile, is easily entrained in destructive distillation coal mine gas, be difficult to collect, form the phenomenon of gas band oil.Field data show, the large-scale destructive distillation oil refining enterprise in domestic northeast, in destructive distillation coal mine gas, oleaginousness is at 20-25g/Nm
3, it singly overlaps destructive distillation device, and outlet gas tolerance is approximately at 70000-80000Nm
3/ h, in the gas free air delivery of 24 hours, just has the lightweight oil of 36 tons (solar oil) do not reclaim and discharge with gas tail gas nearly.According to average statistics in industry, in the destructive distillation coal mine gas of current resinous shale enterprise discharge, oleaginousness is about 15-20g/Nm
3, so a large amount of high-quality fuel oils is not retracted, and while forming resource huge waste to oil refining enterprise, also there is serious pollution, cause potential disaster hidden-trouble especially to production environment to environment, harm is produced and personnel safety.
Carbon fiber to be piled up along fiber axial direction due by organic fibres such as flake graphite crystallites to form, and the micro crystal graphite material obtained through high temperature cabonization and graphitization processing, has good conduction, heat conductivility.Because it has highly developed microvoid structure, loading capacity is large, and desorption rate is fast, and good purification, has the features such as heat-resisting, acidproof, alkaline-resisting.Carbon fiber has absorption universality, and capacity is large, and to gasoline, aldehydes, phenols, alcohols, the organic steam adsorptive capacity specific activity charcoals such as alkene several times to tens times greatly, oily adsorptive power specific activity charcoal is high doubly a lot.Absorption resistance is little, and speed is fast, and desorb is rapid, thoroughly.
Induction heating is the magnetic field utilizing the electric current of alternation to produce alternation, and the magnetic field of this alternation makes electro-conductive material inside wherein produce eddy current, thus electro-conductive material is generated heat rapidly.There is the features such as rate of heating is fast, calorific loss is little, easy to operate, both can shorten the process time, and boosted productivity, reduce costs, and can control of industrial furnace home have been improved again.According to its principle of work, the heat that induction heating produces produces in electro-conductive material inside, and heating element is exactly electro-conductive material body.Therefore, induction heating mode, heats is even, is conducive to improving heated object entirety by thermal effect.Because electro-conductive material body is heated simultaneously, substantially reduce heat-up time, heating efficiency is high.Meanwhile, induction heating mode thermal inertia is little, can open at any time or stop, and need not preheating, can realize the quick control of gradient of temperature, easily realize quantity-produced and automatically control.
In resinous shale industry, utilize the combination of PAN-ACF technology and induction heating regeneration techniques, the Technology realizing shale oil high efficiente callback have not been reported.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art, and substance innovation is carried out to prior art, provide a kind of scientific and reasonable, cost is low, the rate of recovery is high, quality good, can make full use of the recovery process of the induction adsorption desorption oil shale distillation gas lightweight oil of resource.
Technical scheme of the present invention is: a kind of recovery process responding to adsorption desorption oil shale distillation gas lightweight oil, it is characterized in that: the first synchronised recycling tank 1 and the second synchronised recycling tank 2 that structure is identical is set simultaneously, carbon fiber for oil vapour in adsorption gas gas or graphite granule filler are all housed in the first synchronised recycling tank 1 and the second synchronised recycling tank 2, first synchronised recycling tank 1 and the second synchronised recycling tank 2 arrange induction heating producer 6 respectively, induction heating producer 6 receives the induction of induction heating controller 5 transmitting and sends in tank by induction, first synchronised recycling tank 1 and the second synchronised recycling tank 2 share a gas condenser 3, light oil tank 4, induction heating controller 5, gas gas-holder 7, cooling tower 8 and recycle pump 9, when the first synchronised recycling tank 1 adsorption gas oil vapour, second synchronised recycling tank 2 carries out induction heating desorption and simultaneously recycling carbon fibre or graphite granule filler, when in the first synchronised recycling tank 1, carbon fiber or graphite granule filling adsorption reach capacity, stop sending into coal mine gas, now the second synchronised recycling tank 2 starts adsorption gas oil vapour, and the first synchronised recycling tank 1 starts to carry out induction heating desorption and recycling carbon fibre or graphite granule filler simultaneously, repeat to hocket, realize reclaiming lightweight oil continuously from destructive distillation coal mine gas, idiographic flow is:
1) normal circulation:
A () is opened the first synchronised recycling tank 1 bottom inflow valve 10 and top and to be given vent to anger valve 14, close the second synchronised recycling tank 2 bottom inflow valve 12, close the first synchronised recycling tank 1 base bleed valve 11 and top air intake valve 15, the oil-containing coal mine gas of temperature 40-60 DEG C introduces the connecting pipe bottom the first synchronised recycling tank 1 and the second synchronised recycling tank 2, and enter in the first synchronised recycling tank 1 by the first synchronised recycling tank 1 bottom inflow pipeline valve 10, in coal mine gas, lightweight oil is fully adsorbed by carbon fiber or graphite granule filler, until carbon fiber or graphite granule filling adsorption saturated, clean coal mine gas after carbon fiber or graphite granule filler fully adsorb enters in gas gas-holder 7 by the first synchronised recycling tank 1 top valve 14, in normal circulation link, the induction heating producer 6 of the first synchronised recycling tank 1 outside is in closing condition,
B () meanwhile, in the second synchronised recycling tank 2, carry out desorption reclaim link, open the induction heating producer 6 of the second synchronised recycling tank 2 outside, the saturated carbon fiber of heating or graphite granule filler, control heating temperature range at 150-400 DEG C, under induction heating effect, the shale oil small droplets that carbon fiber or graphite granule filler adsorb in a upper reacting cycle becomes oil vapour desorption effusion from its hole again, now, open to give vent to anger bottom the second synchronised recycling tank 2 valve 13 and top air intake valve 17, close the second synchronised recycling tank 2 bottom inflow valve 12 and top to give vent to anger valve 16, in the second synchronised recycling tank 2, a small amount of clean coal mine gas is sent into as carrier gas from gas gas-holder 7, enter in the second synchronised recycling tank 2 by the second synchronised recycling tank 2 top air intake valve 17, under recycle pump 9 suction function, the gas-oil mixture that carrier gas and oil vapour are formed is discharged by the gas exhaust duct bottom the second synchronised recycling tank 2, now, close the valve 18 of recycle pump 9 to gas gas-holder 7 pipeline, open the intake ducting valve 20 of recycle pump 9 to gas condenser 3 and the intake ducting valve 19 of gas condenser 3 to gas gas-holder 7, the gas-oil mixture that carrier gas and oil vapour are formed sends into gas condenser 3, by the water coolant in circulating mash gas condenser 3 and cooling tower 8, cooling temperature in maintenance gas condenser 3 is at 10-25 DEG C, under cooling effect, oil-containing coal mine gas condensation lightening shale oil, the lightening shale oil collected is discharged bottom gas condenser 3, be collected into light oil tank 4, the remaining clean coal mine gas as carrier gas returns gas gas-holder 7 through gas condenser 3 bottom cycle, so far, the desorption completed in the second synchronised recycling tank 2 reclaims link,
(c) until shale oil qi exhaustion in the second synchronised recycling tank 2 attached completely after, close the induction heating producer 6 of the second synchronised recycling tank 2 outside, recycle pump 9 continues to run, because carbon fiber in now the second synchronised recycling tank 2 or graphite granule filler are still in the condition of high temperature, need cooling again could recover the adsorbed state of carbon fiber or graphite granule filler, now, close the admission passage valve 20 of recycle pump 9 to gas condenser 3 and the outlet pipe valve 19 of gas condenser 3, the admission passage valve 18 of ON cycle pump 9 to gas gas-holder 7, under the pressurization of recycle pump 9, normal temperature gas takes away the heat of carbon fiber or graphite granule filler in the second synchronised recycling tank 2, while realizing cooling, also the adsorbed state of carbon fiber or graphite granule packing layer is again recovered, so far, complete the preparation work that the second synchronised recycling tank 2 enters absorption link in next reacting cycle,
2) reacting cycle:
D () is closed the first synchronised recycling tank 1 bottom inflow valve 10 and top and to be given vent to anger valve 14, open the second synchronised recycling tank 2 bottom inflow valve 12, open the first synchronised recycling tank 1 base bleed valve 11 and top air intake valve 15, in the first synchronised recycling tank 1, carry out desorption reclaim link, open the induction heating producer 6 of the first synchronised recycling tank 1 outside, carbon fiber or the graphite granule filler of saturated lightening shale oil have been adsorbed in heating, carbon fiber or graphite granule filler heating temperature range control at 150-400 DEG C, under induction heating effect, the shale oil small droplets that carbon fiber or graphite granule filler adsorb in a upper normal circulation becomes oil vapour desorption effusion from its hole again, now, open to give vent to anger bottom the first synchronised recycling tank 1 valve 11 and top air intake valve 15, close the first synchronised recycling tank 1 bottom inflow valve 10 and top to give vent to anger valve 14, in the first synchronised recycling tank 1, a small amount of clean coal mine gas is sent into as carrier gas from gas gas-holder 7, enter in the first synchronised recycling tank 1 by top air intake valve 15, under recycle pump 9 suction function, the gas-oil mixture that carrier gas and oil vapour are formed is discharged by the gas exhaust duct bottom the first synchronised recycling tank 1, now, close the valve 18 of recycle pump 9 to gas gas-holder 7 pipeline, open the intake ducting valve 20 of gas recycle pump 9 to gas condenser 3 and the intake ducting valve 19 of gas condenser 3 to gas gas-holder 7, the gas-oil mixture that carrier gas and oil vapour are formed sends into gas condenser 3, by the water coolant in circulating mash gas condenser 3 and cooling tower 8, cooling temperature in maintenance gas condenser 3 is at 10-25 DEG C, under cooling effect, oil-containing coal mine gas condensation lightening shale oil, the lightening shale oil collected is discharged bottom gas condenser 3, be collected into light oil tank 4, the remaining clean coal mine gas as carrier gas returns gas gas-holder 7 through gas condenser 3 bottom cycle, so far, the desorption completed in the first synchronised recycling tank 1 reclaims link,
E () meanwhile, the absorption link of carbon fiber or graphite granule filler is re-started in the second synchronised recycling tank 2, the oil-containing coal mine gas of temperature 40-60 DEG C enters the connecting pipe bottom the first synchronised recycling tank 1 and the second synchronised recycling tank 2, and enter in the second synchronised recycling tank 2 by the second synchronised recycling tank 2 bottom inflow pipeline valve 12, under the adsorption of carbon fiber or graphite granule filler, in coal mine gas, lightweight oil is fully adsorbed by carbon fiber or graphite granule, until carbon fiber or graphite granule filling adsorption saturated, clean coal mine gas after carbon fiber or graphite granule filler fully adsorb enters in gas gas-holder 7 by the second synchronised recycling tank 2 top valve 16, in reacting cycle link, the induction heating producer 6 of the second synchronised recycling tank 2 outside is in closing condition,
(f) until shale oil qi exhaustion in the first synchronised recycling tank 1 attached completely after, close the induction heating producer 6 of the first synchronised recycling tank 1 outside, recycle pump 9 continues to run, because carbon fiber in now tank or graphite granule filler are still in the condition of high temperature, need cooling again could recover the adsorbed state of carbon fiber or graphite granule filler, now, close the admission passage valve 20 of recycle pump 9 to gas condenser 3 and the outlet pipe valve 19 of gas condenser 3, the admission passage valve 18 of ON cycle pump 9 to gas gas-holder 7, under the pressurization of recycle pump 9, normal temperature gas takes away the heat of carbon fiber or graphite granule in the first synchronised recycling tank 1, while realizing cooling, also the adsorbed state of carbon fiber or graphite granule filler is again recovered, so far, complete the preparation work that the first synchronised recycling tank 1 enters absorption link in next normal circulation.
A kind of further effect responding to the recovery process of adsorption desorption oil shale distillation gas lightweight oil of the present invention is embodied in:
(1) by Technology that carbon fiber or graphite granule adsorption technology and induction heating regeneration techniques are combined as a whole, can lightening shale oil in high efficiente callback coal mine gas, the lightening shale oil in oil-containing coal mine gas is isolated by efficient circulation and recovery process, substantially increase the output of shale oil, breach the bottleneck of oil shale distillation process technology;
(2) circulation and recovery process adopts positive and negative two cover circulations, and removal process is alternately implemented, and recovery operation step is continuous, stable, does not affect whole destructive distillation production technique;
(3) absorption and the induction heating desorption of carbon fiber or graphite granule is made full use of, and avoid the secondary pollution produced in carbon fiber or graphite granule reclaiming process completely, simultaneously, because induction heating temperature is controlled, heats is concentrated, and the original structure for carbon fiber or graphite granule destroys less, reduce the loss of carbon fiber or graphite granule, slow down it to consume, be conducive to the long-term stable operation of device, reduce production cost;
(4) owing to adopting induction heating regeneration techniques, there is the features such as rate of heating is fast, calorific loss is little, easy to operate, both can shorten the process time, and boosted productivity, reduce costs, and rate of heating and quality product can have been improved again.
(5) by efficient circulation and recovery process, while obtaining lightening shale oil (solar oil), also purified methane gas, this efficiency utilization for various destructive distillation product provides good basis;
(6) circulation and recovery process apparatus design is simple, ingenious, and separating effect is obvious, technology application instant effect, constructs and implements investment little, is easy to maintenance, safeguards, be applicable to the transformation of old technology and the enforcement of novel process;
(7) this technique also can be used for coal, oil-sand, junked tire, refinery coke, organic waste materials and biomass carbonization technical field.
Accompanying drawing explanation
Fig. 1 is a kind of recovery process schema responding to adsorption desorption oil shale distillation gas lightweight oil of the present invention.
In figure: 1 first synchronised recycling tank, 2 second synchronised recycling tanks, 3 gas condensers, 4 light oil tanks, 5 induction heating controllers, 6 induction heating producers, 7 gas gas-holder, 8 cooling towers, 9 recycle pumps.
Embodiment
The invention will be further described to utilize drawings and Examples below.
As shown in Figure 1, a kind of recovery process responding to adsorption desorption oil shale distillation gas lightweight oil of the present invention, comprise: the first synchronised recycling tank 1 and the second synchronised recycling tank 2 that structure is identical is set simultaneously, carbon fiber for oil vapour in adsorption gas gas or graphite granule filler are all housed in the first synchronised recycling tank 1 and the second synchronised recycling tank 2, first synchronised recycling tank 1 and the second synchronised recycling tank 2 arrange induction heating producer 6 respectively, induction heating producer 6 receives the induction of induction heating controller 5 transmitting and sends in tank by induction, first synchronised recycling tank 1 and the second synchronised recycling tank 2 share a gas condenser 3, light oil tank 4, induction heating controller 5, gas gas-holder 7, cooling tower 8 and recycle pump 9, when the first synchronised recycling tank 1 adsorption gas oil vapour, second synchronised recycling tank 2 carries out induction heating desorption and simultaneously recycling carbon fibre or graphite granule filler, when in the first synchronised recycling tank 1, carbon fiber or graphite granule filling adsorption reach capacity, stop sending into coal mine gas, now the second synchronised recycling tank 2 starts adsorption gas oil vapour, and the first synchronised recycling tank 1 starts to carry out induction heating desorption and recycling carbon fibre or graphite granule filler simultaneously, repeat to hocket, realize reclaiming lightweight oil continuously from destructive distillation coal mine gas, idiographic flow is:
1) normal circulation:
A () is opened the first synchronised recycling tank 1 bottom inflow valve 10 and top and to be given vent to anger valve 14, close the second synchronised recycling tank 2 bottom inflow valve 12, close the first synchronised recycling tank 1 base bleed valve 11 and top air intake valve 15, the oil-containing coal mine gas of temperature 40-60 DEG C introduces the connecting pipe bottom the first synchronised recycling tank 1 and the second synchronised recycling tank 2, and enter in the first synchronised recycling tank 1 by the first synchronised recycling tank 1 bottom inflow pipeline valve 10, in coal mine gas, lightweight oil is fully adsorbed by carbon fiber or graphite granule filler, until carbon fiber or graphite granule filling adsorption saturated, clean coal mine gas after carbon fiber or graphite granule filler fully adsorb enters in gas gas-holder 7 by the first synchronised recycling tank 1 top valve 14, in normal circulation link, the induction heating producer 6 of the first synchronised recycling tank 1 outside is in closing condition,
B () meanwhile, in the second synchronised recycling tank 2, carry out desorption reclaim link, open the induction heating producer 6 of the second synchronised recycling tank 2 outside, the saturated carbon fiber of heating or graphite granule filler, control heating temperature range at 150-400 DEG C, under induction heating effect, the shale oil small droplets that carbon fiber or graphite granule filler adsorb in a upper reacting cycle becomes oil vapour desorption effusion from its hole again, now, open to give vent to anger bottom the second synchronised recycling tank 2 valve 13 and top air intake valve 17, close the second synchronised recycling tank 2 bottom inflow valve 12 and top to give vent to anger valve 16, in the second synchronised recycling tank 2, a small amount of clean coal mine gas is sent into as carrier gas from gas gas-holder 7, enter in the second synchronised recycling tank 2 by the second synchronised recycling tank 2 top air intake valve 17, under recycle pump 9 suction function, the gas-oil mixture that carrier gas and oil vapour are formed is discharged by the gas exhaust duct bottom the second synchronised recycling tank 2, now, close the valve 18 of recycle pump 9 to gas gas-holder 7 pipeline, open the intake ducting valve 20 of recycle pump 9 to gas condenser 3 and the intake ducting valve 19 of gas condenser 3 to gas gas-holder 7, the gas-oil mixture that carrier gas and oil vapour are formed sends into gas condenser 3, by the water coolant in circulating mash gas condenser 3 and cooling tower 8, cooling temperature in maintenance gas condenser 3 is at 10-25 DEG C, under cooling effect, oil-containing coal mine gas condensation lightening shale oil, the lightening shale oil collected is discharged bottom gas condenser 3, be collected into light oil tank 4, the remaining clean coal mine gas as carrier gas returns gas gas-holder 7 through gas condenser 3 bottom cycle, so far, the desorption completed in the second synchronised recycling tank 2 reclaims link,
(c) until shale oil qi exhaustion in the second synchronised recycling tank 2 attached completely after, close the induction heating producer 6 of the second synchronised recycling tank 2 outside, recycle pump 9 continues to run, because carbon fiber in now the second synchronised recycling tank 2 or graphite granule filler are still in the condition of high temperature, need cooling again could recover the adsorbed state of carbon fiber or graphite granule filler, now, close the admission passage valve 20 of recycle pump 9 to gas condenser 3 and the outlet pipe valve 19 of gas condenser 3, the admission passage valve 18 of ON cycle pump 9 to gas gas-holder 7, under the pressurization of recycle pump 9, normal temperature gas takes away the heat of carbon fiber or graphite granule filler in the second synchronised recycling tank 2, while realizing cooling, also the adsorbed state of carbon fiber or graphite granule packing layer is again recovered, so far, complete the preparation work that the second synchronised recycling tank 2 enters absorption link in next reacting cycle,
2) reacting cycle:
D () is closed the first synchronised recycling tank 1 bottom inflow valve 10 and top and to be given vent to anger valve 14, open the second synchronised recycling tank 2 bottom inflow valve 12, open the first synchronised recycling tank 1 base bleed valve 11 and top air intake valve 15, in the first synchronised recycling tank 1, carry out desorption reclaim link, open the induction heating producer 6 of the first synchronised recycling tank 1 outside, carbon fiber or the graphite granule filler of saturated lightening shale oil have been adsorbed in heating, carbon fiber or graphite granule filler heating temperature range control at 150-400 DEG C, under induction heating effect, the shale oil small droplets that carbon fiber or graphite granule filler adsorb in a upper normal circulation becomes oil vapour desorption effusion from its hole again, now, open to give vent to anger bottom the first synchronised recycling tank 1 valve 11 and top air intake valve 15, close the first synchronised recycling tank 1 bottom inflow valve 10 and top to give vent to anger valve 14, in the first synchronised recycling tank 1, a small amount of clean coal mine gas is sent into as carrier gas from gas gas-holder 7, enter in the first synchronised recycling tank 1 by top air intake valve 15, under recycle pump 9 suction function, the gas-oil mixture that carrier gas and oil vapour are formed is discharged by the gas exhaust duct bottom the first synchronised recycling tank 1, now, close the valve 18 of recycle pump 9 to gas gas-holder 7 pipeline, open the intake ducting valve 20 of gas recycle pump 9 to gas condenser 3 and the intake ducting valve 19 of gas condenser 3 to gas gas-holder 7, the gas-oil mixture that carrier gas and oil vapour are formed sends into gas condenser 3, by the water coolant in circulating mash gas condenser 3 and cooling tower 8, cooling temperature in maintenance gas condenser 3 is at 10-25 DEG C, under cooling effect, oil-containing coal mine gas condensation lightening shale oil, the lightening shale oil collected is discharged bottom gas condenser 3, be collected into light oil tank 4, the remaining clean coal mine gas as carrier gas returns gas gas-holder 7 through gas condenser 3 bottom cycle, so far, the desorption completed in the first synchronised recycling tank 1 reclaims link,
E () meanwhile, the absorption link of carbon fiber or graphite granule filler is re-started in the second synchronised recycling tank 2, the oil-containing coal mine gas of temperature 40-60 DEG C enters the connecting pipe bottom the first synchronised recycling tank 1 and the second synchronised recycling tank 2, and enter in the second synchronised recycling tank 2 by the second synchronised recycling tank 2 bottom inflow pipeline valve 12, under the adsorption of carbon fiber or graphite granule filler, in coal mine gas, lightweight oil is fully adsorbed by carbon fiber or graphite granule, until carbon fiber or graphite granule filling adsorption saturated, clean coal mine gas after carbon fiber or graphite granule filler fully adsorb enters in gas gas-holder 7 by the second synchronised recycling tank 2 top valve 16, in reacting cycle link, the induction heating producer 6 of the second synchronised recycling tank 2 outside is in closing condition,
(f) until shale oil qi exhaustion in the first synchronised recycling tank 1 attached completely after, close the induction heating producer 6 of the first synchronised recycling tank 1 outside, recycle pump 9 continues to run, because carbon fiber in now tank or graphite granule filler are still in the condition of high temperature, need cooling again could recover the adsorbed state of carbon fiber or graphite granule filler, now, close the admission passage valve 20 of recycle pump 9 to gas condenser 3 and the outlet pipe valve 19 of gas condenser 3, the admission passage valve 18 of ON cycle pump 9 to gas gas-holder 7, under the pressurization of recycle pump 9, normal temperature gas takes away the heat of carbon fiber or graphite granule material in the first synchronised recycling tank 1, while realizing cooling, also the adsorbed state of carbon fiber or graphite granule filler is again recovered, so far, complete the preparation work that the first synchronised recycling tank 1 enters absorption link in next normal circulation.
The induction heating controller 5 that induction heating producer 6 and Perceived control answer heating generator 6 to open and close is commercially available prod; Recycle pump 9 and valve are commercially available prod.
Because induction heating process thermal effect is obvious, in heating quantity set, heat-up time is short, makes the desorption effusion from carbon fiber or graphite granule filler of a large amount of lightening shale oils.Therefore, in the unit volume coal mine gas of again collecting, the content of lightening shale oil promotes greatly, and the cooling being conducive to shale oil is reclaimed.
Claims (1)
1. respond to the recovery process of adsorption desorption oil shale distillation gas lightweight oil for one kind, it is characterized in that: the first identical synchronised recycling tank (1) of structure and the second synchronised recycling tank (2) are set simultaneously, carbon fiber for oil vapour in adsorption gas gas or graphite granule filler are all housed in the first synchronised recycling tank (1) and the second synchronised recycling tank (2), first synchronised recycling tank (1) and the second synchronised recycling tank (2) arrange induction heating producer (6) respectively, induction is also sent in tank by the induction that induction heating producer (6) reception induction heating controller (5) is launched, first synchronised recycling tank (1) and the second synchronised recycling tank (2) share a gas condenser (3), light oil tank (4), induction heating controller (5), gas gas-holder (7), cooling tower (8), with recycle pump (9), when the first synchronised recycling tank (1) adsorption gas oil vapour, second synchronised recycling tank (2) carries out induction heating desorption and simultaneously recycling carbon fibre or graphite granule filler, when in the first synchronised recycling tank (1), carbon fiber or graphite granule filling adsorption reach capacity, stop sending into coal mine gas, now the second synchronised recycling tank (2) starts adsorption gas oil vapour, and the first synchronised recycling tank (1) starts to carry out induction heating desorption and recycling carbon fibre or graphite granule filler simultaneously, repeat to hocket, realize reclaiming lightweight oil continuously from destructive distillation coal mine gas, idiographic flow is:
1) normal circulation:
A () is opened the first synchronised recycling tank (1) bottom inflow valve (10) and top and to be given vent to anger valve (14), close the second synchronised recycling tank (2) bottom inflow valve (12), close the first synchronised recycling tank (1) base bleed valve (11) and top air intake valve (15), the oil-containing coal mine gas of temperature 40-60 DEG C introduces the connecting pipe of the first synchronised recycling tank (1) and the second synchronised recycling tank (2) bottom, and enter in the first synchronised recycling tank (1) by the first synchronised recycling tank (1) bottom inflow pipeline valve (10), in coal mine gas, lightweight oil is fully adsorbed by carbon fiber or graphite granule filler, until carbon fiber or graphite granule filling adsorption saturated, clean coal mine gas after carbon fiber or graphite granule filler fully adsorb enters in gas gas-holder (7) by the first synchronised recycling tank (1) top valve (14), in normal circulation link, the induction heating producer (6) of the first synchronised recycling tank (1) outside is in closing condition,
B () meanwhile, in the second synchronised recycling tank (2), carry out desorption reclaim link, open the induction heating producer (6) that the second synchronised recycling tank (2) is outside, the saturated carbon fiber of heating or graphite granule filler, control heating temperature range at 150-400 DEG C, under induction heating effect, the shale oil small droplets that carbon fiber or graphite granule filler adsorb in a upper reacting cycle becomes oil vapour desorption effusion from its hole again, now, open the second synchronised recycling tank (2) bottom to give vent to anger valve (13) and top air intake valve (17), close the second synchronised recycling tank (2) bottom inflow valve (12) and top to give vent to anger valve (16), a small amount of clean coal mine gas is sent into as carrier gas in from gas gas-holder (7) to the second synchronised recycling tank (2), enter in the second synchronised recycling tank (2) by the second synchronised recycling tank (2) top air intake valve (17), under recycle pump (9) suction function, gas-oil mixture carrier gas and oil vapour formed is discharged by the gas exhaust duct of the second synchronised recycling tank (2) bottom, now, close the valve (18) of recycle pump (9) to gas gas-holder (7) pipeline, open recycle pump (9) to the intake ducting valve (20) of gas condenser (3) and gas condenser (3) to the intake ducting valve (19) of gas gas-holder (7), the gas-oil mixture that carrier gas and oil vapour are formed sends into gas condenser (3), by the water coolant in circulating mash gas condenser (3) and cooling tower (8), cooling temperature in maintenance gas condenser (3) is at 10-25 DEG C, under cooling effect, oil-containing coal mine gas condensation lightening shale oil, the lightening shale oil collected is discharged in gas condenser (3) bottom, be collected into light oil tank (4), the remaining clean coal mine gas as carrier gas returns gas gas-holder (7) through gas condenser (3) bottom cycle, so far, the desorption completed in the second synchronised recycling tank (2) reclaims link,
(c) until shale oil qi exhaustion in the second synchronised recycling tank (2) attached completely after, close the induction heating producer (6) that the second synchronised recycling tank (2) is outside, recycle pump (9) continues to run, because now the second synchronised recycling tank (2) interior carbon fiber or graphite granule filler are still in the condition of high temperature, need cooling again could recover the adsorbed state of carbon fiber or graphite granule filler, now, close recycle pump (9) the admission passage valve (20) to gas condenser (3) and the outlet pipe valve (19) of gas condenser (3), ON cycle pump (9) is to the admission passage valve (18) of gas gas-holder (7), under the pressurization of recycle pump (9), normal temperature gas takes away the heat of the second synchronised recycling tank (2) interior carbon fiber or graphite granule filler, while realizing cooling, also the adsorbed state of carbon fiber or graphite granule packing layer is again recovered, so far, complete the preparation work that the second synchronised recycling tank (2) enters absorption link in next reacting cycle,
2) reacting cycle:
D () is closed the first synchronised recycling tank (1) bottom inflow valve (10) and top and to be given vent to anger valve (14), open the second synchronised recycling tank (2) bottom inflow valve (12), open the first synchronised recycling tank (1) base bleed valve (11) and top air intake valve (15), in the first synchronised recycling tank (1), carry out desorption reclaim link, open the induction heating producer (6) that the first synchronised recycling tank (1) is outside, carbon fiber or the graphite granule filler of saturated lightening shale oil have been adsorbed in heating, carbon fiber or graphite granule filler heating temperature range control at 150-400 DEG C, under induction heating effect, the shale oil small droplets that carbon fiber or graphite granule filler adsorb in a upper normal circulation becomes oil vapour desorption effusion from its hole again, now, open the first synchronised recycling tank (1) bottom to give vent to anger valve (11) and top air intake valve (15), close the first synchronised recycling tank (1) bottom inflow valve (10) and top to give vent to anger valve (14), a small amount of clean coal mine gas is sent into as carrier gas in from gas gas-holder (7) to the first synchronised recycling tank (1), enter in the first synchronised recycling tank (1) by top air intake valve (15), under recycle pump (9) suction function, gas-oil mixture carrier gas and oil vapour formed is discharged by the gas exhaust duct of the first synchronised recycling tank (1) bottom, now, close the valve (18) of recycle pump (9) to gas gas-holder (7) pipeline, open gas recycle pump (9) to the intake ducting valve (20) of gas condenser (3) and gas condenser (3) to the intake ducting valve (19) of gas gas-holder (7), the gas-oil mixture that carrier gas and oil vapour are formed sends into gas condenser (3), by the water coolant in circulating mash gas condenser (3) and cooling tower (8), cooling temperature in maintenance gas condenser (3) is at 10-25 DEG C, under cooling effect, oil-containing coal mine gas condensation lightening shale oil, the lightening shale oil collected is discharged in gas condenser (3) bottom, be collected into light oil tank (4), the remaining clean coal mine gas as carrier gas returns gas gas-holder (7) through gas condenser (3) bottom cycle, so far, the desorption completed in the first synchronised recycling tank (1) reclaims link,
E () meanwhile, the absorption link of carbon fiber or graphite granule filler is re-started in the second synchronised recycling tank (2), the oil-containing coal mine gas of temperature 40-60 DEG C enters the connecting pipe of the first synchronised recycling tank (1) and the second synchronised recycling tank (2) bottom, and enter in the second synchronised recycling tank (2) by the second synchronised recycling tank (2) bottom inflow pipeline valve (12), under the adsorption of carbon fiber or graphite granule filler, in coal mine gas, lightweight oil is fully adsorbed by carbon fiber or graphite granule, until carbon fiber or graphite granule filling adsorption saturated, clean coal mine gas after carbon fiber or graphite granule filler fully adsorb enters in gas gas-holder (7) by the second synchronised recycling tank (2) top valve (16), in reacting cycle link, the induction heating producer (6) of the second synchronised recycling tank (2) outside is in closing condition,
(f) until shale oil qi exhaustion in the first synchronised recycling tank (1) attached completely after, close the induction heating producer (6) that the first synchronised recycling tank (1) is outside, recycle pump (9) continues to run, because carbon fiber in now tank or graphite granule filler are still in the condition of high temperature, need cooling again could recover the adsorbed state of carbon fiber or graphite granule filler, now, close recycle pump (9) the admission passage valve (20) to gas condenser (3) and the outlet pipe valve (19) of gas condenser (3), ON cycle pump (9) is to the admission passage valve (18) of gas gas-holder (7), under the pressurization of recycle pump (9), normal temperature gas takes away the heat of the first synchronised recycling tank (1) interior carbon fiber or graphite granule material, while realizing cooling, also the adsorbed state of carbon fiber or graphite granule filler is again recovered, so far, complete the preparation work that the first synchronised recycling tank (1) enters absorption link in next normal circulation.
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