Process method for modifying biomass extracting solution
阅读说明：本技术 一种生物质提取液改性的工艺方法 (Process method for modifying biomass extracting solution ) 是由 张长安 贾书亚 王志东 范少朋 郭水涛 刘建军 于 2019-09-29 设计创作，主要内容包括：本发明公开了一种生物质提取液改性的工艺方法,涉及生物质提取相关技术领域,微量焦油脱除：将生物质提取液从底部通入吸附塔,经过活性炭固定床层,从塔顶溢流出塔,B：氧化改性：从吸附塔顶流出的液体在输送过程中加入臭氧(或氧气),在氧化反应罐底部通过微纳米气泡发生器高压喷射释放,将臭氧变成微纳米气泡。本发明通过用活性炭脱除秸秆提取液中的微量焦油；再以氧气或臭氧曝气氧化的方法对其进行改性,达到消除异味、降低颜色、增加稳定性的目的,满足植物杀虫剂、液体肥、土壤改良剂的使用要求,通过密封垫和盖板方便了提取箱体的开启,通过活性炭固定床方便了活性炭吸附层的拆卸和取出。(The invention discloses a process method for modifying a biomass extracting solution, which relates to the technical field related to biomass extraction, and comprises the following steps of: and (2) introducing the biomass extracting solution into the adsorption tower from the bottom, and overflowing the biomass extracting solution out of the tower from the top of the tower through the active carbon fixed bed layer, wherein B: oxidation modification: ozone (or oxygen) is added into the liquid flowing out of the top of the adsorption tower in the conveying process, and the ozone is released through high-pressure injection of a micro-nano bubble generator at the bottom of the oxidation reaction tank to be changed into micro-nano bubbles. The invention removes trace tar in the straw extract by using active carbon; the modified plant insecticide extraction box is modified by an oxygen or ozone aeration oxidation method, so that the purposes of eliminating peculiar smell, reducing color and increasing stability are achieved, the use requirements of plant insecticides, liquid fertilizers and soil conditioners are met, the extraction box body is convenient to open through a sealing gasket and a cover plate, and the activated carbon adsorption layer is convenient to detach and take out through an activated carbon fixed bed.)
1. A process method for modifying biomass extracting solution is characterized by comprising the following steps:
a: removing trace tar: introducing the biomass extracting solution into an adsorption tower from the bottom, passing through an active carbon fixed bed layer, and overflowing from the top of the tower to the outside;
b: oxidation modification: adding ozone (or oxygen) into the liquid flowing out of the top of the adsorption tower in the conveying process, and releasing the ozone into micro-nano bubbles by high-pressure injection of a micro-nano bubble generator at the bottom of the oxidation reaction tank; a catalyst fixed bed is arranged above the micro-nano bubble generator, under the action of a catalyst, ozone quickly generates a large amount of hydroxyl radicals, and chemical substances with peculiar smell and heavy color in the biomass extracting solution are decomposed by utilizing the strong oxidizing property of the hydroxyl radicals, so that the peculiar smell is eliminated, the chromaticity is reduced, and the chemical substances in the biomass extracting solution are decomposed.
2. The process method for modifying the biomass extracting solution according to claim 1, wherein the process method comprises the following steps:
and B, in the step A, in the process that the biomass extracting solution to be processed is pyrolysis gas step collection for biomass isolated air pyrolysis, secondary indirect cooling is carried out to collect the biomass extracting solution with very little tar.
3. The process method for modifying the biomass extracting solution according to claim 1, wherein the process method comprises the following steps:
the adsorbent in the adsorption tower in the step A is macroporous caramel decoloration granular activated carbon; the purpose is to remove trace tar, and active carbon not only adsorbs tar but also adsorbs a certain amount of macromolecular organic matters (macromolecular alcohol, aldehyde, ketone, ester and the like) in the extracting solution.
4. The process method for modifying the biomass extracting solution according to claim 1, wherein the process method comprises the following steps:
the adsorption tower in the step A is of a structure with a lower inlet and an upper outlet; liquid is fed from the bottom through a pump, and a trace amount of tar is absorbed by an active carbon fixed bed arranged in the middle and then overflows out of the tower from the top of the tower.
5. The process method for modifying the biomass extracting solution according to claim 1, wherein the process method comprises the following steps:
the activated carbon in the step A is a replaceable fixed bed, the activated carbon with saturated adsorption is moved out of an adsorption tower, the activated carbon is indirectly heated to raise the temperature for thermal desorption, and the collected and desorbed components enter a pyrolysis oil refining system for recovery; the active carbon which recovers the adsorption performance after desorption is loaded into the adsorption tower again for recycling.
6. The process method for modifying the biomass extracting solution according to claim 1, wherein the process method comprises the following steps:
in the step B, oxygen or ozone is used as an oxidant for oxidation modification, the oxygen or ozone and air are mixed and aerated in the plant extracting solution in a micro-nano bubble mode, organic molecules and groups with large molecular weight and easy oxidation in the extracting solution are decomposed into organic matters with small molecular weight and good stability by utilizing the characteristics of high solubility, long retention time and strong oxidability of the micro-nano bubbles, and the original part of easily decomposed small molecules is subjected to oxidative decomposition, so that the peculiar smell of the straw extracting solution is eliminated, the color is reduced, the stability is increased, and the use requirements of the plant insecticide, the liquid fertilizer and the soil conditioner are met.
Technical Field
The invention relates to the technical field related to biomass extraction, in particular to a process method for modifying a biomass extracting solution.
Background
The pyrolysis treatment of the straw isolated from air obtains a large amount of combustible gas, straw carbon and tar, and also collects a large amount of extracting solution (commonly called wood vinegar or plant extracting solution, the yield is related to the moisture content of the straw). The product contains a large amount of organic alcohols, acids, phenols, esters, aldehydes and ketones, and has antibacterial and bacteriostatic effects. The fertilizer is easy to be absorbed by crops due to the source of the straw, can promote the growth of the plants, and is a good crop fertilizer and soil conditioner.
However, the wood vinegar obtained by gasifying biomass such as straw, controlling oxygen, gasifying and incinerating, and thermally decomposing (or carbonizing or dry distilling) without air is generally crude wood vinegar, which cannot be used as pesticide, fertilizer and soil conditioner because of tar harmful to plants, and has a pungent smell, so that the storage, transportation and use processes are greatly limited
Therefore, there is a need to provide a process for modifying biomass extract to solve the above problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a process method for modifying a biomass extracting solution, which solves the problems that the wood vinegar obtained by gasifying biomass such as straws and the like, controlling oxygen, gasifying and burning, insulating air and carrying out thermal decomposition (or carbonization and dry distillation) is crude wood vinegar in a general system, cannot be used as a pesticide, a fertilizer and a soil conditioner due to the fact that tar harmful to plants is contained, and the storage, transportation and use processes are greatly limited due to the fact that pungent smell is emitted.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a process method for modifying biomass extracting solution comprises the following steps:
a: removing trace tar: introducing the biomass extracting solution into an adsorption tower from the bottom, passing through an active carbon fixed bed layer, and overflowing from the top of the tower to the outside;
b: oxidation modification: adding ozone (or oxygen) into the liquid flowing out of the top of the adsorption tower in the conveying process, and releasing the ozone into micro-nano bubbles by high-pressure injection of a micro-nano bubble generator at the bottom of the oxidation reaction tank; a catalyst fixed bed is arranged above the micro-nano bubble generator, under the action of a catalyst, ozone quickly generates a large number of hydroxyl radicals, and chemical substances with peculiar smell and heavy color in the biomass extracting solution are decomposed by utilizing the strong oxidizing property of the hydroxyl radicals, so that the peculiar smell is eliminated, the chromaticity is reduced, and the middle chemical substances are decomposed.
Optionally, in the step a, the biomass extract to be treated is a pyrolysis gas stepped collection process of biomass isolated air pyrolysis, and the biomass extract with very little tar is collected by secondary indirect cooling.
Optionally, the adsorbent in the adsorption tower in the step a is macroporous caramel decoloration granular activated carbon; the purpose is to remove trace tar, and active carbon not only adsorbs tar but also adsorbs a certain amount of macromolecular organic matters (macromolecular alcohol, aldehyde, ketone, ester and the like) in the extracting solution.
Optionally, the adsorption tower in the step a is of a lower-inlet and upper-outlet structure; liquid is fed from the bottom through a pump, and trace tar and the like are adsorbed by an active carbon fixed bed arranged in the middle and then overflow out of the tower from the top of the tower.
Optionally, the activated carbon in the step a is a replaceable fixed bed, the activated carbon with saturated adsorption is moved out of the adsorption tower, the activated carbon is indirectly heated to raise the temperature for thermal desorption, and the collected desorbed components enter a pyrolysis oil refining system for recovery; the active carbon which recovers the adsorption performance after desorption is loaded into the adsorption tower again for recycling.
Optionally, in the step B, oxygen or ozone is used as an oxidant for oxidation modification, oxygen or ozone and air are mixed and aerated in the plant extract in a micro-nano bubble mode, organic molecules and groups with large molecular weight and easy oxidation in the extract are decomposed into organic matters with small molecular weight and good stability by utilizing the characteristics of large solubility, long retention time and strong oxidability of the micro-nano bubbles, and original parts of easily decomposed small molecules are subjected to oxidative decomposition, so that the peculiar smell of the straw extract is eliminated, the color is reduced, the stability is increased, and the use requirements of the plant pesticide, the liquid fertilizer and the soil conditioner are met.
The utility model provides a living beings extract extraction element, is including drawing the box, the sealed pad of top fixedly connected with who draws the box, the sealed top fixedly connected with apron that fills up, draw the surface upper portion and the apron fixed connection of box, a plurality of active carbon fixed beds of interior fixed surface connected with who draws the box, it is a plurality of the active carbon fixed bed equidistance from top to bottom is arranged, the interior fixed surface connected with active carbon adsorption layer of active carbon fixed bed draw the interior fixed surface connected with filter screen of box, the filter screen is located active carbon adsorption layer's top, draw the leading flank fixed mounting of box have the observation window draw the surface lower part fixedly connected with frame plate of box, the bottom fixedly connected with mounting panel of frame plate, the bottom fixedly connected with support column of mounting panel.
Optionally, the bottom fixedly connected with base of support column, the top fixedly connected with of base accepts the board, the top fixedly connected with storage tank who accepts the board, the top fixedly connected with discharge pipe of storage tank.
Optionally, the outer surface of the discharging pipeline is fixedly provided with a throttle valve, the top of the discharging pipeline is fixedly connected with a striker plate, and the top of the striker plate is fixedly connected with the bottom of the extracting box body.
Optionally, the top of the cover plate is fixedly connected with a feeding pipeline, the outer surface of the feeding pipeline is fixedly connected with the sealing gasket, and the bottom of the feeding pipeline is located inside the extraction box body.
(III) advantageous effects
The invention provides a process method for modifying a biomass extracting solution, which has the following beneficial effects:
(1) the invention removes the trace tar in the straw extract by using the active carbon; then the modified fertilizer is modified by an oxygen or ozone aeration oxidation method, so as to achieve the purposes of eliminating peculiar smell, reducing color and increasing stability, meet the use requirements of plant pesticides, liquid fertilizers and soil conditioners,
(2) the extraction box body is convenient to open through the sealing gasket and the cover plate, the interior of the extraction box body is convenient to clean, the active carbon adsorption layer is convenient to disassemble and take out through the active carbon fixed bed, larger particles appearing in materials can be filtered through the filter screen, the stability of the extraction box body can be guaranteed through the frame plate and the support column, the extraction box body is convenient to use, the extracted materials can be stored through the storage box, and the condition of the interior of the extraction box body can be observed through the observation window.
Drawings
FIG. 1 is a schematic view of the process of the present invention.
FIG. 2 is a schematic view of the interior of the extraction box of the present invention.
FIG. 3 is a schematic view of the connection of the activated carbon fixed bed structure of the present invention.
FIG. 4 is a front view of the extraction box of the present invention.
In the figure: 1. extracting the box body; 2. a gasket; 3. a cover plate; 4. an activated carbon fixed bed; 5. an activated carbon adsorption layer; 6. a filter screen; 7. an observation window; 8. a frame plate; 9. mounting a plate; 10. a support pillar; 11. a bearing plate; 13. a material storage box; 14. a discharge conduit; 15. a throttle valve; 16. a striker plate; 17. a feeding pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a process method for modifying biomass extracting solution, which comprises the following steps:
a: removing trace tar: introducing the biomass extracting solution obtained by secondary cooling in the step-shaped collecting process into an adsorption tower from the bottom, passing through an active carbon fixed bed layer, and overflowing out of the tower from the top of the tower;
b: oxidation modification: adding ozone (or oxygen) into the liquid flowing out of the top of the adsorption tower in the conveying process, and releasing the ozone into micro-nano bubbles by high-pressure injection of a micro-nano bubble generator at the bottom of the oxidation reaction tank; a catalyst fixed bed is arranged above the micro-nano bubble generator, under the action of a catalyst, ozone quickly generates a large number of hydroxyl radicals, and chemical substances with peculiar smell and heavy color in the biomass extracting solution are decomposed by utilizing the strong oxidizing property of the hydroxyl radicals, so that the peculiar smell is eliminated, the chromaticity is reduced, and the middle chemical substances are decomposed.
As an optional technical scheme of the invention:
and B, in the step A, in the process that the biomass extracting solution to be treated is pyrolysis gas step collection for biomass isolated air pyrolysis, secondary indirect cooling is carried out to collect the biomass extracting solution with little tar.
As an optional technical scheme of the invention:
the adsorbent in the adsorption tower in the step A is macroporous caramel decoloration granular activated carbon; the aim is to remove trace tar, the active carbon not only adsorbs tar but also adsorbs a certain amount of macromolecular organic matters (macromolecular alcohol, aldehyde, ketone, ester and the like) in the extracting solution, and the adsorption tower can select a QY type active carbon adsorption tower or other types of adsorption towers according to requirements.
As an optional technical scheme of the invention:
the adsorption tower in the step A is of a lower-inlet and upper-outlet structure; the liquid is pumped from the bottom through a pump, and is adsorbed by a middle activated carbon fixed bed, trace tar and the like, and then overflows out of the tower from the top of the tower.
As an optional technical scheme of the invention:
the activated carbon in the step A is a replaceable fixed bed, the activated carbon with saturated adsorption is moved out of an adsorption tower, the activated carbon is indirectly heated to raise the temperature for thermal desorption, and the collected desorbed components enter a pyrolysis oil refining system for recovery; the active carbon which recovers the adsorption performance after desorption is loaded into the adsorption tower again for recycling.
As an optional technical scheme of the invention:
in the step B, oxygen or ozone is used as an oxidant for oxidation modification, the oxygen or ozone and air are mixed and aerated in the plant extracting solution in a micro-nano bubble mode, organic molecules and groups with large molecular weight and easy oxidation in the extracting solution are decomposed into organic matters with small molecular weight and good stability by utilizing the characteristics of high solubility, long retention time and strong oxidability of the micro-nano bubbles, and the original part of easily decomposed small molecules is subjected to oxidative decomposition, so that the peculiar smell of the straw extracting solution is eliminated, the color is reduced, the stability is increased, and the use requirements of the plant insecticide, the liquid fertilizer and the soil conditioner are met.
As an optional technical scheme of the invention:
as shown in figures 2-4, a biomass extracting solution extracting device comprises an extracting box body 1, a sealing gasket 2 is fixedly connected to the top of the extracting box body 1, a cover plate 3 is fixedly connected to the top of the sealing gasket 2, the upper part of the outer surface of the extracting box body 1 is fixedly connected with the cover plate 3, the extracting box body 1 is convenient to open through the sealing gasket 2 and the cover plate 3, the interior of the extracting box body 1 is convenient to clean, a plurality of activated carbon fixed beds 4 are fixedly connected to the inner surface of the extracting box body 1, the plurality of activated carbon fixed beds 4 are arranged at equal intervals from top to bottom, activated carbon adsorption layers 5 are fixedly connected to the inner surfaces of the activated carbon fixed beds 4, the activated carbon adsorption layers 5 are convenient to detach and take out through the activated carbon fixed beds 4, the adsorption effect of extracting solution is improved through the plurality of activated carbon adsorption layers 5, can filter the great granule that appears in the material through filter screen 6, filter screen 6 is located the top of active carbon adsorption layer 5, the leading flank fixed mounting who draws box 1 has observation window 7, can observe the condition of drawing box 1 inside through observation window 7, the surface lower part fixedly connected with frame plate 8 that draws box 1, the bottom fixedly connected with mounting panel 9 of frame plate 8, the bottom fixedly connected with support column 10 of mounting panel 9, can guarantee to draw box 1's stability through frame plate 8 and support column 10, conveniently draw box 1's use.
As an optional technical scheme of the invention:
the bottom fixedly connected with
As an optional technical scheme of the invention:
the outer surface fixed mounting of
As an optional technical scheme of the invention:
the top fixedly connected with of
It is noted that in the present disclosure, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacted with the first and second features, or indirectly contacted with the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
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