CN203878080U

CN203878080U - Glycerol double-decolorization device

Info

Publication number: CN203878080U
Application number: CN201420225430.9U
Authority: CN
Inventors: 叶活动; 罗敏健
Original assignee: LONGYAN ZHUOYUE NEW ENERGY CO Ltd
Current assignee: LONGYAN ZHUOYUE NEW ENERGY CO Ltd
Priority date: 2014-05-05
Filing date: 2014-05-05
Publication date: 2014-10-15
Anticipated expiration: 2024-05-05

Abstract

The utility model discloses a glycerol double-decolorization device which comprises a 1# decolorization tank, a 1# filter press, a 2# decolorization tank, a 2# filter press, a 1# pump, a 2# pump, a front activated carbon elevated tank, a recovered activated carbon elevated tank, a back activated carbon elevated tank, a waste activated carbon tank, an activated carbon recovery tank, a glycerol receiving tank and valves, wherein the front activated carbon elevated tank and recovered activated carbon elevated tank are arranged on the top of the 1# decolorization tank; the 1# pump is connected between the 1# decolorization tank and 1# filter press through pipelines and valves; the waste activated carbon tank is arranged beside the 1# filter press; the outlet of the 1# filter press is connected with the 2# decolorization tank through a pipeline; the back activated carbon elevated tank is arranged on the top of the 2# decolorization tank; the 2# pump is connected between the 2# decolorization tank and 2# filter press through pipelines and valves; the outlet of the 2# filter press is connected with the glycerol receiving tank; and the activated carbon recovery tank is arranged beside the 2# filter press. The glycerol double-decolorization device has the characteristics of low activated carbon consumption, favorable decolorization effect and low production cost.

Description

Glycerine secondary decolourization device

Technical field

The utility model relates to the processing units of Organic chemical products glycerine, is specifically related to glycerin decoloring device.

Background technology

Along with the universal of biofuel suitability for industrialized production and application with promote, its byproduct crude glycerin output also increases sharply, in production of biodiesel process, 1 ton of biofuel of average every production can 0.05～0.1 ton of raw glycerine of by-product; Domestic production of biodiesel enterprise is for reducing production costs, generally adopt taking waste oil (as sewer oil, hogwash fat, vegetable acid carburetion etc.) as main material production biofuel, due to the complicacy of raw material sources, that its byproduct crude glycerin ubiquity is of poor quality, purity is low, impurity is many, process the problems such as numerous and diverse, need to pass through the operations such as purifying, evaporation, distillation, deodorization, decolouring, just can make the glycerine requirement that is up to state standards of producing, the height of one of them important indicator Color of Glycerin directly has influence on its use and Application Areas.At present, the decoloring method of glycerine generally adopts charcoal absorption processing to reduce Color of Glycerin, gac is the porous charcoal material of being made up through charing, activating process of carbonaceous organic material, it is good non-polar adsorbent, nonpolar and the little pigment molecular of polarity are had to good selective adsorption, can adsorbed polymer material, effective especially to removing of red and green pigment; Its decoloration device is mainly made up of a bleacher and a pressure filter, concrete operation method is: in bleacher, add no bleaching glycerine and gac, stir then from pumping toward pressure filter at a certain temperature, glycerine after press filtration flows in Receiving bin, used gac in periodic cleaning pressure filter; Adopt this decoloration device to carry out glycerin decoloring and have the defect that activated carbon dosage is large, Color of Glycerin is dark, production cost is high.

Summary of the invention

The purpose of this utility model is to provide that a kind of activated carbon dosage is little, good decolorizing effect, glycerine secondary decolourization device that production cost is low.

For realizing above object, the utility model glycerine secondary decolourization device comprises 1# bleacher, 1# pressure filter, 2# bleacher, 2# pressure filter, 1# pump, 2# pump, front gac header tank, recovered carbon header tank, rear gac header tank, waste active carbon groove, gac accumulator tank, glycerine Receiving bin and valve; Front gac header tank and recovered carbon header tank are located at 1# bleacher top; 1# pump is located between 1# bleacher and 1# pressure filter, is connected with valve by pipeline, and waste active carbon groove is located at by 1# pressure filter; The outlet of 1# pressure filter connects 2# bleacher by pipeline, and rear gac header tank is located at 2# bleacher top; 2# pump is located between 2# bleacher and 2# pressure filter, is connected with valve by pipeline, and the outlet of 2# pressure filter connects glycerine Receiving bin, and gac accumulator tank is located at by 2# pressure filter.

Utilize said apparatus to carry out the operation steps of glycerin decoloring as follows:

The first step: add no bleaching glycerine and gac once to decolour in 1# bleacher;

Second step: once the glycerine after decolouring is through 1# pumping toward 1# pressure filter, and the first decolouring glycerine being press-filtered out flows to 2# bleacher, adds gac to carry out secondary decolourization in 2# bleacher;

Waste active carbon in periodic cleaning 1# pressure filter;

The 3rd step: the glycerine after secondary decolourization obtains finished product glycerine by 2# pumping toward the press filtration of 2# pressure filter;

All reclaim the gac in 2# pressure filter, and will supplementary joining in 1# bleacher.

According to absorption principle, gac once adds only sets up primary sorption balance, and while adding gac, can bring into play the vigor of new interpolation gac in batches, remains pigment and sets up new adsorption equilibrium, thereby reach better decolorizing effect during with balance for the first time.Above-mentioned secondary decolourization method adopts gac to add in batches, in the situation that gac uses total amount identical, add in batches than the disposable good decolorizing effect that adds, in other words, in the situation that reaching identical decolorizing effect, add in batches the usage quantity of fashionable gac still less.

Adopt above-mentioned glycerine secondary decolourization device, make full use of gac in 2# bleacher to also thering is the ability that dark glycerine is decoloured again after the glycerin decoloring of just decolouring, therefore all reclaim gac the supplementary 1# bleacher that joins in 2# pressure filter, for the first decolouring to dark glycerine, in guaranteeing decolorizing effect, gac is fully used, has significantly reduced activated carbon dosage.

Brief description of the drawings

Accompanying drawing is the utility model glycerine secondary decolourization apparatus structure schematic diagram.

Reference numeral: 1# bleacher 1,1# pressure filter 2,2# bleacher 3,2# pressure filter 4,1# pump 5,2# pump 6, front gac header tank 7, recovered carbon header tank 8, rear gac header tank 9, waste active carbon groove 10, gac accumulator tank 11, glycerine Receiving bin 12, valve 13.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model glycerine secondary decolourization device is described in further details.

The glycerine of the utility model shown in accompanying drawing secondary decolourization device comprises 5m ³1# bleacher 1,70m ²1# pressure filter 2,5m ³2# bleacher 3,70m ²2# pressure filter 4,5m ³/ h 1# pump 5,5m ³/ h 2# pump 6,0.2m ³front gac header tank 7,0.2m ³recovered carbon header tank 8,0.2m ³rear gac header tank 9,2m ³waste active carbon groove 10,2m ³gac accumulator tank 11,5m ³glycerine Receiving bin 12 and valve 13; Front gac header tank 7 and recovered carbon header tank 8 are located at 1# bleacher top; 1# pump 5 is located between 1# bleacher 1 and 1# pressure filter 2, is connected with valve 13 by pipeline, and waste active carbon groove 10 is located at by 1# pressure filter; The outlet of 1# pressure filter connects 2# bleacher 3 by pipeline, and rear gac header tank 9 is located at 2# bleacher 3 tops; 2# pump 6 is located between 2# bleacher 3 and 2# pressure filter 4, is connected with valve 13 by pipeline, and the outlet of 2# pressure filter connects glycerine Receiving bin 12, and gac accumulator tank 11 is located at by 2# pressure filter.

When the work of the utility model glycerine secondary decolourization device, operate as follows:

Waste active carbon in periodic cleaning 1# pressure filter;

Adopt above-mentioned glycerine secondary decolourization device and operation steps technology and glycerine once to decolour the effect comparison of prior art in table 1 and table 2.

Table 1: glycerine secondary decolourization effect

Table 2: the glycerin decoloring effect of prior art

As can be seen from Table 1 and Table 2, adopt the utility model glycerine secondary decolourization device to there is following effect:

1,, in the situation that gac usage quantity is identical, glycerine secondary decolourization on average reduces 20# left and right than the color and luster Hazen (Pt-Co) that once decolours.

2,, in the situation that decolorizing effect is identical, glycerine secondary decolourization is saved more than 50% activated carbon dosage than once decolouring.

Claims

1. a glycerine secondary decolourization device, is characterized in that: it comprises 1# bleacher, 1# pressure filter, 2# bleacher, 2# pressure filter, 1# pump, 2# pump, front gac header tank, recovered carbon header tank, rear gac header tank, waste active carbon groove, gac accumulator tank, glycerine Receiving bin and valve; Front gac header tank and recovered carbon header tank are located at 1# bleacher top; 1# pump is located between 1# bleacher and 1# pressure filter, is connected with valve by pipeline, and waste active carbon groove is located at by 1# pressure filter; The outlet of 1# pressure filter connects 2# bleacher by pipeline, and rear gac header tank is located at 2# bleacher top; 2# pump is located between 2# bleacher and 2# pressure filter, is connected with valve by pipeline, and the outlet of 2# pressure filter connects glycerine Receiving bin, and gac accumulator tank is located at by 2# pressure filter.