CN107099381A - Biodiesel prepares reaction unit - Google Patents

Biodiesel prepares reaction unit Download PDF

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Publication number
CN107099381A
CN107099381A CN201710229183.8A CN201710229183A CN107099381A CN 107099381 A CN107099381 A CN 107099381A CN 201710229183 A CN201710229183 A CN 201710229183A CN 107099381 A CN107099381 A CN 107099381A
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China
Prior art keywords
pipe
methanol
reactor
tank
oil
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CN201710229183.8A
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Chinese (zh)
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CN107099381B (en
Inventor
李志兵
吕鹏梅
王治元
罗文�
李惠文
苗长林
付俊鹰
王忠铭
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Guangzhou Institute of Energy Conversion of CAS
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Guangzhou Institute of Energy Conversion of CAS
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
    • C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
    • C11C3/04—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fats or fatty oils
    • C11C3/10—Ester interchange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B01J19/0066—Stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
    • C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
    • C11C3/04—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fats or fatty oils
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Liquid Carbonaceous Fuels (AREA)

Abstract

The present invention discloses a kind of biodiesel and prepares reaction unit, including reactor, and reactor is connected by oil inlet pipe with oil-feed pump and raw material oil tank；Connected by methanol feed pipe with methanol pump and methanol tank；Connected by oil outlet branch pipe with coarse biodiesel storage tank；Connected by pipeline with condenser；Connected by scum pipe with waste collection tank, the scum pipe is provided with check-valves and valve；Oil inlet pipe is connected with methanol feed pipe by pipeline with flowmeter, valve and check-valves；Also include Methanol Recovery tank and rectifying column, Methanol Recovery tank is connected by pipeline with condenser and rectifying column；Rectifying column is connected by methanol eddy pipe with methanol tank, is connected by condensate pipe with external pipe.Beneficial effects of the present invention：The quantity of methyl alcohol that unit interval is passed through reactor is few, can shorten deacidification esterification time and quickly remove the solid acid catalyst in the moisture in reactant, reusable reactor, the methanol of reaction is not participated in can be reused by reclaiming purifying plant.

Description

Biodiesel prepares reaction unit
Technical field
The present invention relates to biodiesel Preparation equipment technical field, more particularly to a kind of reaction dress for preparing biodiesel Put.
Background technology
Biodiesel obtains the development of high speed as a kind of cleaning, cheap regenerative resource in China.It is domestic extensive The preparation technology of biodiesel is the ester-interchange method based on acid-base catalysis, and production of biodiesel raw material is mostly waste grease (gutter oil, hogwash fat, acidification oil etc.), is generally produced using soda acid two-step method.Because waste grease acid number is universal higher, Typically larger than 100mgKOH/g, therefore, needs to handle by deacidification pre-esterification in base catalysis.The method typically using methanol with Free fatty and triglycerides in waste grease react under catalyst effect generates fatty acid methyl ester (biological bavin Oil).In the process, excessive methanol can be added and participate in deacidification pre-esterification reactor, meanwhile, it is unnecessary in order to reduce production cost Methanol be typically necessary and reclaimed by various methods；At the end of reaction, usually because a variety of causes causes solid acid catalysis The loss of agent.Because existing deacidification esterification device generally existing equipment manufacturing cost is high compared with high, requirement for anticorrosion, methanol usage is big With the shortcomings of utilization rate is relatively low, deacidification esterification time is longer.
Therefore prior art has much room for improvement and developed.
The content of the invention
In view of the foregoing, the present invention provides that a kind of efficient, simple to operate, methanol usage is small and utilization rate is high, can be quick Reaction water is removed, shortens the deacidification pre-esterification time, solid acid catalyst can be repeatedly used and recycles methanol Reaction unit.
The present invention technical solution be：
A kind of biodiesel prepares reaction unit, including reactor 20 and the raw material oil tank that is connected respectively with reactor 36th, methanol tank 34, coarse biodiesel storage tank 38, waste collection tank 42, condenser 14, the outer wall of reactor 20 are cased with reactor folder Set 19；Raw material oil tank 36 connects oil-feed pump 35 and reactor 20 by oil inlet pipe, and methanol tank 34 passes through methanol feed pipe 33 Methanol pump 35 and reactor 20 are connected, coarse biodiesel storage tank 38 is connected by flowline 25 with the oil outlet branch pipe 27 in reactor Logical, condenser 14 is connected by escape pipe 5 with the top of reactor 20, and waste collection tank 42 passes through pipeline and reactor scum pipe 28 connections；
Also include Methanol Recovery tank 43, rectifying column 44 and vavuum pump 40, Methanol Recovery tank 43 passes through pipeline 60 and condenser 14 are connected with rectifying column 44, and rectifying column 44 is connected by methanol eddy pipe 46 with methanol tank 34, and vavuum pump 40 passes through pipeline 61 Connected with waste collection tank 42, Methanol Recovery tank 43, coarse biodiesel storage tank 38, condenser water inlet pipe 13, leaving condenser water pipe 16 are connected with outside cooling water pipe, and the import and export of reacting kettle jacketing 19 is connected by pipeline with external heat pipe, and rectifying column 44 leads to Cross condensate pipe 45 to connect with external pipe, flowmeter, valve and check-valves be provided with oil inlet pipe 8, methanol feed pipe 33, Scum pipe 28 is provided with check-valves 58 and valve 59, is connected with reactor 20.
Stirring motor 1 is covered with reactor 20 to connect by two blades 50 inside agitating shaft 21 and reactor 20, Blade 50 is anchoring component, vertical with agitating shaft 21 to be connected.
The top of reactor 20 is provided with access hole 6, the blast pipe 3 with valve, pressure gauge 4 and electric motor stand 2, access hole 6, band The blast pipe 3 and the table of pressure 4 of valve may be contained within the upper lid of reactor 20, and electric motor stand 2 is arranged at the top of reactor 20, use In support stirring motor 1.
The internal upper part of reactor 20 is provided with flush pipe 18, and flush pipe 18 is fixed with the support 15 of pipe collar and the inwall of reactor 20, Connected by external pipe with methanol pump 32.
The middle part outer wall of reactor 20 is provided with liquid level gauge 17, probe tube 10, temp probe 11 and heat-insulation layer 9.The meter of liquid level 17 can Facilitate the increase and decrease amount of material in observing response kettle 20；The acid number that can analyze feedstock oil in kettle 20 by the sampling monitoring of probe tube 10 is big It is small；Heat-insulation layer 9 can make reacting kettle jacketing 19 keep certain temperature, reduce the loss of heat.
Bottom is provided with methanol branch pipe 23 in reactor 20, and methanol branch pipe 23 is fixed simultaneously with the support of pipe collar and reactor inwall Connected by methanol pipe 22,24 with methanol pump 32；Bottom is provided with scum pipe 28 in reactor 20, using the pressure of material in kettle, Material in kettle can be discharged to by waste collection tank 42 by scum pipe 28.
Copper mesh of each mouth of pipe of oil outlet branch pipe 27 provided with one layer of 200-300 mesh, copper mesh layers 49 and the pipe of oil outlet branch pipe 27 Hoop is fixed.
The outside flowline 25 of reactor 20 is provided with the air inlet pipe 26 with valve 63, and air inlet pipe 26 is connected with compressor escape pipe When flushable oil outlet branch pipe 27 on copper mesh fine impurities.
The bottom of methanol tank 34 is connected by pipeline with the bottom of rectifying column 44.
Scum pipe 28 can periodically in delivery pipe fine impurities, prevent the copper mesh layers 49 of the mouth of pipe from blocking.
Beneficial effects of the present invention：
The quantity of methyl alcohol being passed through using the above structure present apparatus unit interval in reactor is less, when can shorten deacidification pre-esterification Between and quickly remove reactant in moisture, the solid acid catalyst in reactor can be repeatedly used, reaction is not participated in Methanol can be reused by reclaiming purifying plant, may advantageously facilitate the development of Biodiesel.
Brief description of the drawings
Fig. 1 is the overall structure diagram that biodiesel of the present invention prepares reaction unit.
Fig. 2 is the copper mesh scheme of installation that biodiesel of the present invention prepares reaction unit.
Fig. 3 is the flush pipe schematic diagram that biodiesel of the present invention prepares reaction unit.
Fig. 4 is the methanol branch pipe front view that biodiesel of the present invention prepares reaction unit.
Fig. 5 is the methanol branch pipe side view that biodiesel of the present invention prepares reaction unit.
Description of reference numerals：1-stirring motor；2-electric machine support；3-blast pipe；4-pressure gauge；5-escape pipe； 6-access hole；7-bolt；8-oil inlet pipe；9-heat-insulation layer；10-probe tube；11-temp probe；12-heat-conducting oil pipes； 13-condenser water inlet pipe；14-condenser；15-support；16-leaving condenser water pipe；17-liquid level gauge；18-flush pipe； 19-reacting kettle jacketing；20-reactor；21-agitating shaft；22-methanol pipe；23-methanol branch pipe；24-methanol pipe；25― Flowline；26-air inlet pipe；27-oil outlet branch pipe；28-scum pipe；29-reactor support；30-valve；31-flowmeter； 32-methanol pump；33-methanol feed pipe；34-methanol tank；35-oil-feed pump；36-raw material oil tank；37-evacuated tube； 38-coarse biodiesel storage tank；39-pressure gauge；40-vavuum pump；41-liquid level gauge；42-waste collection tank；43-methanol is returned Closed cans；44-rectifying column；45-condensate pipe；46-methanol eddy pipe；47-chemical pump；48-discharging tube；49-copper mesh layers； 50-blade；51-check-valves；52-valve；53-flowmeter；54-valve；55-check-valves；56-condenser air inlet； 57-condenser liquid outlet；58-check-valves；59-valve；60-pipeline；61-pipeline；62-pipeline.
Embodiment
Embodiment 1：
Refering to Fig. 1, a kind of biodiesel prepares reaction unit, including reactor 20, and reactor 20 is fixed on reactor branch On frame 29, reactor 20 and methanol tank 34, raw material oil tank 36, coarse biodiesel storage tank 38, waste collection tank 42, methanol are returned Closed cans 43, rectifying column 44 is connected；Raw material oil tank 36 connects oil-feed pump 35 and reactor 20, raw material oil tank by oil inlet pipe 8 36 are provided with evacuated tube 37, when not in use can empty feedstock oil；Methanol tank 34 connects methanol by methanol feed pipe 33 Pump 32 and reactor 20；Coarse biodiesel storage tank 38 is connected by flowline 25 with the oil outlet branch pipe 27 inside reactor 20, slightly Biodiesel storage tank 38 is connected with chemical pump 47, and the coarse biodiesel of coarse biodiesel storage tank 38 can be pumped out to the storage of outside Tank；Methanol Recovery tank 43 is connected by pipeline with condenser 14 and rectifying column 44；Waste collection tank 42 passes through pipeline and reactor The scum pipe 28 of bottom is connected；Rectifying column 44 is connected by methanol eddy pipe 46 with methanol tank 34, and the both sides of rectifying column 44 are set There is condensate pipe 45, for gaseous methanol condensed, into liquid, to be additionally provided with pressure gauge 39 on the pipeline for connecting rectifying column, use Pressure value in detection rectifying column 44.
Condenser 14 is connected by pipeline with the top of reactor 20, condenser water inlet pipe 13, leaving condenser water pipe 16 with Outside cooling water pipe connection；The import and export of reacting kettle jacketing 19 is connected by pipeline with external heat pipe；Rectifying column 44 is by cold Solidifying water pipe 45 is connected with external pipe；Oil inlet pipe 8, methanol feed pipe 33 are provided with flowmeter 31, valve 30 and check-valves 51；Row Slag pipe 28 is connected provided with check-valves 58 and valve 59 with reactor 20.
Shown as shown in Figure 2, Figure 3 and Figure 4, bottom is provided with methanol branch pipe 23, methanol branch pipe 23 pipe collar and reaction in reactor The support of the inwall of kettle 20 is fixed and connected by methanol pipe 22,24 with methanol pump 32；The bottom of reactor 20 is provided with scum pipe 28, row Slag pipe 28 is provided with valve 63, using the pressure of material in kettle, material in kettle can be discharged into waste collection tank by scum pipe 28 42；Copper mesh layers 49 of each mouth of pipe provided with one layer of 200-300 mesh of methanol branch pipe 23, oil outlet branch pipe 27, copper mesh layers 49 with it is fuel-displaced Branch pipe 27 is fixed with pipe collar；The outside flowline 25 of reactor 20 is provided with the air inlet pipe 26 with valve, and air inlet pipe 26 goes out with compressor Tracheae connect when flushable oil outlet branch pipe 27 on copper mesh layers 49 fine impurities.
Lid is connected by bolt 7 with the side wall of reactor 20 on reactor 20, and upper lid is additionally provided with access hole 6, in reaction In the case that kettle goes wrong, it can only use opening access hole 6 can maintenance and inspection.The upper lid of reactor 20 is additionally provided with pressure gauge 4, for detecting the pressure value in reactor 20.The side wall of reactor 20 is connected with heat-conducting oil pipes 12, for improving heating efficiency With the uniformity, reaction speed is improved.Reactor side wall is additionally provided with liquid level gauge 17, for checking the liquid capacity in reactor.
Reactor outer wall is provided with liquid level gauge 17, probe tube 10, temp probe 11, reacting kettle jacketing 19 and heat-insulation layer 9；Liquid level Meter 17 can facilitate the increase and decrease amount of material in observing response kettle 20；Can raw material in analytical reactions kettle 20 by the sampling monitoring of probe tube 10 The acid number size of oil；Heat-insulation layer 9 can make reacting kettle jacketing 19 keep certain temperature, reduce the loss of heat.
The internal upper part of reactor 20 is provided with flush pipe 18, and flush pipe 18 is fixed with the support of pipe collar and the inwall of reactor 20, leads to External pipe is crossed to connect with methanol pump 32.
The outside of waste collection tank 42 is also equipped with liquid level gauge 41, the increase and decrease amount for checking liquid in waste collection tank 42.
The specific work process of the present invention is as follows：
Solid acid catalyst is added to the inside of reactor 20 according to 5% ratio for accounting for raw material oil quality by blast pipe 3； The import and export valve of reacting kettle jacketing 19 is opened, thermal source is passed through and carries out heating heating；Open and be positioned on electric machine support 2 simultaneously Stirring motor 1 and cooling water is passed through in condenser 14, the feedstock oil of raw material oil tank 36 passes through oil inlet pipe 8, valve 30, flow Meter 31 and oil-feed pump 35 enter inside reactor 20；Meanwhile, the methanol of methanol tank 34 passes through methanol pump 32, methanol pipe 24, stream Gauge 31, valve 30, methanol branch pipe 23 enters bottom in reactor 20.Agitating shaft 21 drives blade 50 with the agitation revolution of setting Rotation, feedstock oil, solid acid catalyst and methanol carry out deacidification esterification in reactor 20, pass through the setting of methanol pump 32 Flow, methanol enters bottom in reactor 20, during the course of the reaction, excessive methanol gas by methanol pipe 24 and methanol branch pipe 23 The water vapour of the moisture that the original moisture of body, feedstock oil and reaction are produced at high temperature is by the gas outlet 56 of the internal upper part of reactor 20 Condenser 14 is entered, becomes liquid after being cooled down through supercooled water and Methanol Recovery tank 43 is flowed into by pipeline 60 from liquid outlet 57； The methanol gas that is formed is entered in reactor 20 with feedstock oil and urging by each methanol branch pipe 23 under feedstock oil high-temperature heating Agent is reacted；The coarse biodiesel produced after reaction enters coarse biodiesel storage tank by flowline branch pipe 27 and the stream of flowline 25 38, the solid acid catalyst of reactor 20 can continue to be used for multiple times in reactor 20 under the obstruction of copper mesh layers 49；Reactor 20 Interior residual waste solution is flowed into waste collection tank 42 by scum pipe 28.The heat-insulation layer 9 of the outer wall of reacting kettle jacketing 19 can make in chuck Keep certain temperature, by probe tube 10 sample can in periodic analysis reactor 20 feedstock oil deacidification pre-esterification situation；It is logical Negative pressure in the tank that the pumping of vavuum pump 40 is produced is crossed, methanol gas and vapor in reactor 20 can be accelerated and enter Methanol Recovery tank 43, the coarse biodiesel that can also accelerate in reactor 20 flows into storage tank.
5 tons of gutter oil deacidification pre-esterification that the present embodiment 1 is pre-processed by 120mgKOH/g of acid number prepare biodiesel mistake Exemplified by journey, solid acid catalyst is added to the inside of reactor 20 according to 5% ratio for accounting for raw material oil quality by blast pipe 3； The import and export valve of reacting kettle jacketing 19 is opened, thermal source is passed through and carries out heating heating；Stirring motor 1 is opened simultaneously and is passed through cooling Water is in condenser 14, and the feedstock oil of raw material oil tank 36 is entered by oil inlet pipe 8, valve 30, flowmeter 31 and oil-feed pump 35 Inside reactor 20；Meanwhile, the methanol of methanol tank 34 passes through methanol pump 32, methanol pipe 24, flowmeter 31, valve 30, methanol Branch pipe 23 enters bottom in reactor 20.Feedstock oil, solid acid catalyst and methanol are in reactor 20 with 150rpm/min's Agitation revolution carries out deacidification esterification, and the methanol for setting flow by methanol pump 32 is entered by methanol pipe 24 and methanol branch pipe 23 Bottom in reactor 20, during the course of the reaction, the moisture that excessive methanol gas, the original moisture of feedstock oil and reaction is produced exist Water vapour under high temperature enters condenser 14 by the gas outlet 56 of the internal upper part of reactor 20, and liquid is formed after supercooling from going out Liquid mouthful 57 flows into Methanol Recovery tank 43 by pipeline 60；The methanol gas formed under feedstock oil high-temperature heating passes through each methanol Branch pipe 23 enters in reactor 20 and feedstock oil and catalyst reaction；The coarse biodiesel produced after reaction passes through flowline branch pipe 27 and the stream of flowline 25 enter coarse biodiesel storage tank 38, the solid acid catalyst of reactor 20 can be after under the obstruction of copper mesh layers 49 Continue and be used for multiple times in reactor；Residual waste solution is flowed into waste collection tank 42 by scum pipe 28 in reactor.Reactor is pressed from both sides Covering the heat-insulation layer 9 of 19 outer walls can make to keep certain temperature in chuck, can be in periodic analysis reactor by the sampling of probe tube 10 The deacidification pre-esterification situation of feedstock oil；Negative pressure in the tank produced is evacuated by vavuum pump 40, methanol gas in reactor can be accelerated Enter Methanol Recovery tank 43 with vapor, the coarse biodiesel that can also accelerate in reactor flows into storage tank.Open on blast pipe 3 Valve, can the new solid acid catalyst of regular replenishment to reactor 20.Pass through the flush pipe 18 of reactor internal upper part, opening valve After door 54 and methanol pump 32, methanol can be pumped into the inwall of reactor 20, flushing waste is discharged to waste collection by scum pipe 28 Tank 42.Using the present apparatus, it can be achieved to shorten the deacidification pre-esterification time and quickly remove the moisture in reactant, can be repeated several times Using the solid acid catalyst in reactor, the methanol of reaction is not participated in can be reused by reclaiming purifying plant.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and the embodiment simultaneously is not used to limit this hair Bright the scope of the claims, all equivalence enforcements or change without departing from carried out by the present invention are intended to be limited solely by the scope of the claims of this case.

Claims (10)

1. a kind of biodiesel prepares reaction unit, it is characterised in that：Including
Rabbling mechanism is provided with inside reactor (20), the reactor (20), pressure gauge (4) is above covered with, side wall is provided with temperature Pop one's head in (11), and outer wall is arranged with reacting kettle jacketing (19), the import and export of the reacting kettle jacketing (19) passes through heat-conducting oil pipes And ft connection (12)；
Raw material oil tank (36), an oil-feed pump (35), the other end connection institute of the oil-feed pump (35) are connected by oil inlet pipe (8) Reactor (20) is stated, the oil inlet pipe (8) is provided with flowmeter (53), valve (54) and check-valves (55)；
Methanol tank (34), methanol pump (32) is connected by methanol feed pipe (33), and the other end of the methanol pump (32) passes through Methanol feed pipe (33) connects the methanol pipe (24) of reactor (20) bottom, and the methanol feed pipe (33) is provided with flow Count (31), valve (30) and check-valves (51)；
Coarse biodiesel storage tank (38), the bottom of the reactor (20) is connected by flowline (25)；
Waste collection tank (42), the reactor (20) is connected by scum pipe (28), and the scum pipe (28) is provided with non-return Valve (58) and valve (59), the scum pipe (28) connect with the bottom of reactor (20)；
Condenser (14), is arranged at the outer wall of the reactor (20), and the condenser air inlet (56) is connected by escape pipe (5) Lead to the top of the reactor (20), water inlet pipe (13), the outlet pipe (16) of the condenser (14) connect with outside cooling water pipe It is logical；
Methanol Recovery tank (43), is interconnected by pipeline (60) and the condenser liquid outlet (57) and a rectifying column (44), Rectifying column (44) bottom connects the Methanol Recovery tank (43), and top connects the methanol by methanol eddy pipe (46) and stored up Tank (34).
2. biodiesel according to claim 1 prepares reaction unit, it is characterised in that：Also include vavuum pump (40), institute State vavuum pump (40) and pass through pipeline (61) and the waste collection tank (42), the Methanol Recovery tank (43) and the coarse biometric bavin Oil tank (38) is connected.
3. biodiesel according to claim 1 prepares reaction unit, it is characterised in that：The rabbling mechanism includes setting In the electric motor stand (2) covered on reactor, and the stirring motor (1) being fixed on the electric motor stand (2), the stirring motor (1) agitating shaft (21) is connected through lid is vertical with the blade (50) inside reactor on the reactor (20), the blade (50) it is anchor formula stirrer paddle.
4. biodiesel according to claim 1 prepares reaction unit, it is characterised in that：Reactor (20) upper surface Provided with access hole (6).
5. biodiesel according to claim 1 prepares reaction unit, it is characterised in that：Reactor (20) internal upper part Provided with flush pipe (18), the flush pipe (18) and the support of reactor (20) inwall are fixed, and flush pipe (18) passes through pipeline (62) connected with methanol pump (32).
6. biodiesel according to claim 1 prepares reaction unit, it is characterised in that：The interior bottom of the reactor (20) Provided with methanol branch pipe (23), the methanol branch pipe (23) and the support of reactor inwall are fixed and by methanol pipe (24) and methanol Pump (32) is connected.
7. biodiesel according to claim 1 prepares reaction unit, it is characterised in that：Reactor (20) bottom is set There is oil outlet branch pipe (27), the oil outlet branch pipe (27) is made up of two orthogonal and intercommunication pipelines, the oil outlet branch pipe (27) each mouth of pipe is installed with copper mesh layers (49) by pipe collar.
8. biodiesel according to claim 1 prepares reaction unit, it is characterised in that：The mesh number of the copper mesh layers (49) For 200-300 mesh.
9. biodiesel according to claim 1 prepares reaction unit, it is characterised in that：The flowline (25) is provided with Valve (63) is provided with air inlet pipe (26), the air inlet pipe (26).
10. biodiesel according to claim 1 prepares reaction unit, it is characterised in that：Reactor (20) outer wall Provided with heat-insulation layer (9), heat-insulation layer (9) can make reacting kettle jacketing (19) keep certain temperature, reduce the loss of heat.
CN201710229183.8A 2017-04-10 2017-04-10 Biodiesel preparation reaction device Active CN107099381B (en)

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CN107099381B CN107099381B (en) 2021-06-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN115960286A (en) * 2022-12-23 2023-04-14 常州瑞华化工工程技术股份有限公司 Control system and control method for foamed polystyrene reaction sampling

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CN102787022A (en) * 2012-05-08 2012-11-21 种传学 Reaction system for countercurrent continuous esterification of biodiesel

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Publication number Priority date Publication date Assignee Title
CN115159693A (en) * 2022-07-11 2022-10-11 茂名市泓宇能源科技有限公司 Process and device for preparing composite carbon source by using biodiesel byproduct
CN115960286A (en) * 2022-12-23 2023-04-14 常州瑞华化工工程技术股份有限公司 Control system and control method for foamed polystyrene reaction sampling
CN115960286B (en) * 2022-12-23 2023-11-03 常州瑞华化工工程技术股份有限公司 Control system and control method for reaction sampling of expanded polystyrene

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