CN202465637U - Reaction device for heterogeneous ultra-refined continuous production of biodiesel - Google Patents

Abstract

The utility model discloses a reaction device for heterogeneous ultra-refined continuous production of biodiesel. An acid catalyst pipeline, a raw oil pipeline and a methanol pipeline are communicated with a first static ultramicro disperser through a metering pump and a valve; the first static ultramicro disperser is connected with a heat exchanger through a pipeline with a valve; the heat exchanger and a basic catalyst pipeline are sequentially connected with a second static ultramicro disperser, a multifunctional refining contact reactor, a third static ultromicro disperser and a reaction kettle through a metering pump and a pipeline with a valve; the reaction kettle is respectively connected with a discharging pipeline with a valve and connected with the heat exchanger and the second static ultramicro disperser respectively through a pipeline with a valve after being connected with the valve and the metering pump; and the heat exchanger is also sequentially connected with the multifunctional refining contact reactor and a methanol recovering pipeline through a pipeline with a valve. The reaction device has the characteristics of capability of ultra-refining raw materials, increment of velocity gradient of laminar motion of a fluid layer, uniformity in fluid cutting and mixing, large reaction contact area, high reaction conversion rate, low equipment investment cost and suitability for continuous and large-scale production of the biodiesel.

Description

Heterogeneous ultra micro refinement continuous production biofuel reaction unit

Technical field

The utility model belongs to the biodiesel production facility technical field, especially relates to a kind of heterogeneous ultra micro refinement continuous production biofuel reaction unit.

Background technology

The China's oil natural resources shortage has 55% oil to want dependence on import approximately, and the biofuel that development can substitute petrifaction diesel has become the task of top priority; Utilize the food and drink waste animal and vegetable oil, refine processing biological diesel-oil, for state guarantee environment; Practice thrift the energy, turned waste into wealth, will have no utility value; The rubbish oil that the harm gangster is shallow becomes the reproducible clean energy of a kind of green, has reduced the dependence of China to petroleum products; Safeguard national energy security, stopped rubbish oil and moved towards dining table once more, protected broad masses of the people's physical and mental health; Biofuel is used in processing, to advancing energy substitution, reduces emission of harmful substances such as carbon, sulphur, hydrocarbon polymer, carcinogenic aromatic hydrocarbon, useless particle object, and the protection atmospheric environment safeguards that energy security and ecological environment treatment have very great strategic importance; Because biofuel (fatty acid methyl ester) is the inhomogeneous reaction of being undertaken by between hydrophobic phase raw fatty acid and glyceryl ester and the aqueous favoring methyl alcohol; In reaction process; The contact area is little between out-phase material branch, the time short; Limited reaction and carried out speed, conventional stirring reaction device needs higher temperature condition and long reaction times, has caused that production efficiency is low, energy consumption is high; High temperature and long reaction times have further been caused the instability of quality product, can't ensure and produce qualified product; In addition, in process of production, need to add acid, alkaline catalysts, this just needs reaction unit and heating system to reach higher acid-and base-resisting requirement for anticorrosion, needs to adopt lass lining or gather the tetrafluoro device, has strengthened equipment investment cost.The acid-and base-resisting rot-resistant reaction kettle device that the current production of biodiesel device that connects recently with the utility model stirs for band; Such stirring reaction appliance arrangement investment is big, cost is high; Batch production, complex process; Production efficiency is low, can't ensure the quality product of production, is not suitable for the biofuel industrialization and produces.

Summary of the invention

The purpose of the utility model be to improve the deficiency of prior art and provide a kind of can to the refinement of raw material ultra micro, increase the fluid telescopic movement velocity slope, fluid is cut apart mix, reaction contact area is big, reaction conversion speed is high and equipment investment cost is low, is applicable to the serialization of biofuel, the heterogeneous ultra micro refinement continuous production biofuel reaction unit of large-scale production.

The purpose of the utility model is to realize like this; Heterogeneous ultra micro refinement continuous production biofuel reaction unit; Be characterized in that an acidic catalyst pipeline, raw oil pipeline, methanol line are communicated with the first static ultra micro decollator through the pipeline of volume pump and band valve respectively; The first static ultra micro decollator connects interchanger through the pipeline of band valve; Interchanger, basic catalyst pipeline are connected the second static ultra micro decollator through the pipeline of volume pump and band valve; The second static ultra micro decollator connects multi-functional refinement contact reactor through the pipeline of band valve, and multi-functional refinement contact reactor connects the 3rd static ultra micro decollator, reaction kettle through the pipeline of band valve, and reaction kettle connects behind valve and the volume pump respectively the discharging pipeline of tape splicing valve and connects interchanger, the second static ultra micro decollator through the pipeline of being with valve respectively; Interchanger also connects multi-functional refinement contact reactor through the pipeline of band valve, and multi-functional refinement contact reactor connects the Methanol Recovery pipeline through pipeline valve.

The utility model has following distinguishing feature and positively effect with prior art property ratio: the unit equipment that the static ultra micro diverting device that the utility model adopts is a kind of advanced person; Its inside does not have moving parts; Main utilization fluid flow is realized various fluidic mixing with internal element, it is special reasonably establish the structure meter compare with miscellaneous equipments such as orifice plate post, Venturi meter, whisking appliance, homogenizers have the efficient height, energy consumption is low, volume is little, reduced investment, be easy to serialization production advantage; Adopt static ultra micro decollator group can make feed liquid in extruding; Ultra micro refinement under thump and the decompression expansible triple role; The velocity slope generation of increase fluid telescopic movement " cut apart-position is moved-is converged again " or form turbulent flow; Also can produce violent eddy current during turbulent flow, form very strong shear action, make fluid further cut apart mixing in fluid in the section direction; Multi-functional refinement contact reactor divides two portions up and down, in filler is arranged, during as the refinement contact reactor,, can improve the contact area and the duration of contact of heterogeneous material from top fed, cut down the consumption of energy, improve speed of response and quality product; Multi-functional in addition refinement contact reactor is charging ability double as flash distillation still usefulness from the middle part, takes off thick methyl alcohol with it in the production, needn't heavily go up flashing apparatus, can save facility investment and maintenance cost; Adopt multi-functional refinement contact reactor can further increase the long-pending and duration of contact of molecular contact of hydrophobic phase raw fatty acid and glyceryl ester and aqueous favoring methyl alcohol; Improve plant factor, speed of response and production efficiency; Save whipping appts, reduced facility investment and production cost; To in the production technique to the high temperature acid-and base-resisting requirement for anticorrosion of equipment; Adopted external placed type acid-and base-resisting interchanger in this device, external placed type device convenient for maintaining, maintenance, the while has also been reduced the parameter request of other equipment; Except interchanger; Other devices have adopted steel lining to mould compound material, can adapt to the processing parameter requirement, and have saved facility investment; Be applicable to serialization, the large-scale production of biofuel.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.

Fig. 1 is a kind of structural representation of the utility model.

Embodiment

Embodiment; Heterogeneous ultra micro refinement continuous production biofuel reaction unit; With reference to Fig. 1; Be that an acidic catalyst pipeline 2, raw oil pipeline 3, methanol line 4 are communicated with the first static ultra micro decollator 5 through the pipeline of volume pump and band valve respectively; The first static ultra micro decollator 5 connects interchanger 6 through the pipeline of band valve; Interchanger 6, basic catalyst pipeline 1 pipeline through volume pump and band valve is connected the pipeline of second static ultra micro decollator 7, the second static ultra micro decollators 7 through the band valve and connects multi-functional refinement contact reactor 8, and the pipeline of multi-functional refinement contact reactor 8 through the band valve connects the 3rd static ultra micro decollator 15, reaction kettle 9; Reaction kettle 9 connects behind valves and the volume pump respectively the discharging pipeline 11 of tape splicing valve and connects interchanger 6, the second static ultra micro decollator 7 through the pipeline of being with valve respectively; Interchanger 6 also connects multi-functional refinement contact reactor 8 through the pipeline of band valve, and multi-functional refinement contact reactor 8 connects Methanol Recovery pipeline 12 through pipeline valve, and this constitutes a kind of structure of the utility model.

The utility model be with the hydrophobic phase lipid acid in the discarded animal and plant glyceride stock and glyceryl ester respectively and between the aqueous favoring methyl alcohol under the effect of acid, alkaline catalysts, carry out esterification, transesterification reaction generates fatty acid methyl ester, the i.e. device of biofuel; Its principle of work is:

1, will the dewater glyceride stock of slagging-off is squeezed into first static ultra micro decollator 5 through methanol line 4 usefulness volume pumps by the mixed of mass ratio 4:1 through raw oil pipeline 3 and methyl alcohol; 1-3% by fat methyl alcohol total flux measures the property squeezed into acid catalyst simultaneously; Be warming up to 58-62 ℃ through connecing interchanger 6,, improve speed of response by the contact area and the duration of contact of the second static ultra micro decollator 7 abundant increase greases and methyl alcohol; Get into multi-functional refinement contact reactor 8 further accelerated reactions through pipeline then; Then flow into the 3rd static ultra micro decollator 15 in the reaction kettle 9, ultra micro refinement contact reacts in reaction kettle 9 has been carried out sufficient reaction to this glyceride stock and methyl alcohol in above each device and pipeline; When reaction kettle 9 liquid levels reach 2/3; Close an acidic catalyst pipeline 2, raw oil pipeline 3, methanol line 4, the sampling detection reaction process in reaction kettle 9 bottoms is not if reaction is accomplished; Then opening at the bottom of the still recycle pump and circulation line further reacts through the second static ultra micro decollator 7, multi-functional refinement contact reactor the 8, the 3rd static ultra micro decollator 15; Accomplish up to reaction,, keep temperature of reaction at 58-62 ℃ if temperature can not adopt interchanger 6 to heat up completely in the working cycle;

2, after esterification is accomplished, open recycle pump, circulation line, feed liquid gets into interchanger 6 heating, directly reaches the middle part opening for feed of multi-functional refinement contact reactor 8 without the second static ultra micro decollator 7, adopts the vacuum flashing separating methanol;

3, in the feed liquid behind separating methanol; Squeeze into the potassium hydroxide methanol solution (concentration of potassium hydroxide 2-3%) of material quantity 20-30%, open recycle pump and circulation line and react, if temperature can not adopt interchanger 6 heating completely in the circulating reaction process through the second static ultra micro decollator 7, multi-functional refinement contact reactor the 8, the 3rd static ultra micro decollator 15; Keep temperature of reaction at 58-62 ℃; Detect ester interchange conversion rate in the reaction process, after question response finished, thick methyl alcohol was taken off in flash distillation again;

4, take off the taper slurry tank that feed liquid behind the thick methyl alcohol is driven into the band insulation, standing sedimentation 4-5 hour, separate deglycerizin, biofuel.

Claims (1)

1. heterogeneous ultra micro refinement continuous production biofuel reaction unit; It is characterized in that an acidic catalyst pipeline (2), raw oil pipeline (3), methanol line (4) are communicated with the first static ultra micro decollator (5) through the pipeline of volume pump and band valve respectively; The first static ultra micro decollator (5) connects interchanger (6) through the pipeline of band valve; Interchanger (6), basic catalyst pipeline (1) are connected the second static ultra micro decollator (7) through the pipeline of volume pump and band valve; The second static ultra micro decollator (7) connects multi-functional refinement contact reactor (8) through the pipeline of band valve; Multi-functional refinement contact reactor (8) connects the 3rd static ultra micro decollator (15), reaction kettle (9) through the pipeline of band valve; Reaction kettle (9) is distinguished the discharging pipeline (11) of tape splicing valve and is connect interchanger (6), the second static ultra micro decollator (7) through the pipeline of being with valve respectively after connecting valve and volume pump; Interchanger (6) also connects multi-functional refinement contact reactor (8) through the pipeline of band valve, and multi-functional refinement contact reactor (8) connects Methanol Recovery pipeline (12) through pipeline valve.

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