CN112774597A - Double-tank circulating hydrothermal reaction device and operation method - Google Patents
Double-tank circulating hydrothermal reaction device and operation method Download PDFInfo
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- CN112774597A CN112774597A CN202110201169.3A CN202110201169A CN112774597A CN 112774597 A CN112774597 A CN 112774597A CN 202110201169 A CN202110201169 A CN 202110201169A CN 112774597 A CN112774597 A CN 112774597A
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- 238000001027 hydrothermal synthesis Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 86
- 238000005192 partition Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000005086 pumping Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 238000007599 discharging Methods 0.000 claims description 9
- 238000010924 continuous production Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000012429 reaction media Substances 0.000 abstract description 12
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000007795 chemical reaction product Substances 0.000 abstract description 2
- 239000006227 byproduct Substances 0.000 description 3
- 239000010921 garden waste Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- 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
- B01J19/0006—Controlling or regulating processes
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- 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
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- 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
- B01J19/0046—Sequential or parallel reactions, e.g. for the synthesis of polypeptides or polynucleotides; Apparatus and devices for combinatorial chemistry or for making molecular arrays
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- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00121—Controlling the temperature by direct heating or cooling
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- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00159—Controlling the temperature controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00164—Controlling or regulating processes controlling the flow
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a double-tank circulating hydrothermal reaction device and an operation method thereof; the reaction device consists of two reaction tanks and a circulating pump; a filter and a heater are installed in the reaction tank, a partition valve is installed outside the reaction tank, and four valves with reversing functions are installed at the inlet and the outlet of the circulating pump; the circulating pump is respectively connected with the two filters through valves; the operation principle of the reaction device is as follows: when one reaction tank finishes the reaction, pumping the reaction medium into the other reaction tank; the reaction product is still left in the original reaction tank due to the action of the filter; the reaction medium carries the heat of the reaction medium to continue the reaction in the other reaction tank, so that the repeated heating and cooling of the reaction medium can be avoided, and the energy is greatly saved.
Description
Technical Field
The invention relates to a hydrothermal decomposition reaction device, in particular to a double-tank circulating hydrothermal reaction device and an operation method thereof, which are applied to hydrothermal reaction for preparing biochar from garden wastes.
Background
When biochar is prepared from garden waste by a hydrothermal method, besides biochar, a lot of byproducts are generated, and most of the byproducts are dissolved in water, so that a reaction medium is complicated. In order to avoid interference factors, water as a reaction medium is generally used once. Although the cost of water is low, the heat contained in water is costly.
Recent studies have shown that: the by-products entering the water, not only do not affect the preparation of the biochar, but also have positive effect. Based on the researches, the double-tank circulating reaction device is designed, so that repeated heating and cooling of a reaction medium can be avoided, and energy is greatly saved.
Disclosure of Invention
The invention aims to provide equipment and a method for hydrothermal reaction for preparing biochar from garden waste.
The invention is realized by adopting the following technical scheme:
a double-tank circulating hydrothermal reaction device comprises two reaction tanks and a circulating pump; a filter and a heater are arranged in the reaction tank, a separating valve is arranged outside the reaction tank, and four valves with reversing functions are arranged at the inlet and the outlet of the circulating pump; the circulating pump is respectively connected with the two filters through valves.
Specifically, the device comprises a reaction tank I, a reaction tank II and a circulating pump; a heater I and a filter I are arranged in the reaction tank I; a heater II and a filter II are arranged in the reaction tank II; the inlet of the circulating pump is connected with one end of a valve II and one end of a valve III in parallel, and the outlet of the circulating pump is connected with one end of a valve I and one end of a valve IV in parallel; the other ends of the valve I and the valve II are connected in parallel and then connected with a filter I in the reaction tank I through a partition valve I; and the other ends of the valve III and the valve IV are connected in parallel and then connected with a filter II in the reaction tank II through a partition valve II.
The operation principle of the reaction device is as follows: when one reaction tank finishes the reaction, pumping the reaction medium into the other reaction tank; the reaction product is still left in the original reaction tank due to the action of the filter; the reaction medium carries the heat of the reaction medium to continue the reaction in the other reaction tank, so that the repeated heating and cooling of the reaction medium can be avoided, and the energy is greatly saved.
The reaction device operates according to the following steps:
step one, starting: adding the reaction raw materials into two reaction tanks respectively, and adding water into one of the reaction tanks, wherein the water is not added into the other reaction tank; closing all valves;
step two, reaction: heating the reaction tank with water until the reaction is finished;
step three, orientation: determining the direction of water flow as that a reaction tank with water flows to a reaction tank without water through the control of a valve I, a valve II, a valve III and a valve IV;
step four, discharging liquid: opening the two partition valves, starting the circulating pump, pumping water in the reaction tank with water into the reaction tank without water, and then closing all the valves;
step five, discharging and feeding: opening the reaction tank which has discharged water, discharging, and then feeding;
step six, repeating: and forming continuous production according to the steps from the second step to the fourth step.
Compared with the prior art, the double-tank circulating hydrothermal reaction device and the operation method have the beneficial effects that: repeated heating and cooling of the reaction medium can be avoided, thereby greatly saving energy.
The invention has reasonable design and good practical application value.
Drawings
Fig. 1 shows a schematic structural view of the present invention.
In the figure: 1 a-reaction tank I, 1a 1-heater I, 1a 2-filter I, 1a 3-isolating valve I; 1 b-reaction tank II, 1b 1-heater II, 1b 2-filter II, 1b 3-isolating valve II; 2-circulating pump, 21-valve I, 22-valve II, 23-valve III, 24-valve IV.
Detailed Description
The following detailed description of specific embodiments of the invention refers to the accompanying drawings.
A double-tank circulating hydrothermal reaction device comprises two reaction tanks and a circulating pump; a filter and a heater are arranged in the reaction tank, a separating valve is arranged outside the reaction tank, and four valves with reversing functions are arranged at the inlet and the outlet of the circulating pump; the circulating pump is respectively connected with the two filters through valves.
Specifically, as shown in FIG. 1, the reactor comprises a reaction tank I1 a, a reaction tank II 1b and a circulating pump 2. A heater I1 a1 and a filter I1 a2 are arranged in the reaction tank I1 a; a heater II 1b1 and a filter II 1b2 are provided in the reaction tank II 1 b. The inlet of the circulating pump 2 is connected with one end of a valve II 22 and one end of a valve III 23 in parallel, and the outlet of the circulating pump 2 is connected with one end of a valve I21 and one end of a valve IV 24 in parallel; the other ends of the valve I21 and the valve II 22 are connected in parallel and then connected with a filter I1 a2 in the reaction tank I1 a through a partition valve I1 a 3; the other ends of the valve III 23 and the valve IV 24 are connected in parallel and then connected with a filter II 1b2 in a reaction tank II 1b through a separating valve II 1b 3.
The reaction device operates according to the following steps:
step one, starting: adding reaction raw materials into a reaction tank I1 a and a reaction tank II 1b respectively, and filling one of the reaction tanks (the reaction tank I1 a) with water, and not adding water into the other reaction tank (the reaction tank II 1 b); closing all valves;
step two, reaction: heating the reaction tank I1 a with water until the reaction is finished;
step three, orientation: determining the direction of water flow as that the reaction tank I1 a with water flows to the reaction tank II 1b without water through the control of the valve I, the valve II, the valve III and the valve IV; in this embodiment, the first water flow flows from the left side to the right side, and then the valve control is: opening a valve II 22 and a valve IV 24, and closing a valve I21 and a valve III 23; (the opposite is true when the water flow is from the right to the left);
step four, discharging liquid: opening a partition valve I1 a3 and a partition valve II 1b3, starting a circulating pump 2, pumping water in a reaction tank I1 a with water into a reaction tank II 1b without water, and then closing all valves;
step five, discharging and feeding: opening the reaction tank I1 a which has discharged water, discharging, and then feeding;
step six, repeating: and forming continuous production according to the steps from the second step to the fourth step.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (2)
1. A double-tank circulation hydrothermal reaction device is characterized in that: comprises a reaction tank I (1 a), a reaction tank II (1 b) and a circulating pump (2);
a heater I (1 a 1) and a filter I (1 a 2) are arranged in the reaction tank I (1 a);
a heater II (1 b 1) and a filter II (1 b 2) are arranged in the reaction tank II (1 b);
the inlet of the circulating pump (2) is connected with one end of a valve II (22) and one end of a valve III (23) in parallel, and the outlet of the circulating pump (2) is connected with one end of a valve I (21) and one end of a valve IV (24) in parallel; the other ends of the valve I (21) and the valve II (22) are connected in parallel and then connected with a filter I (1 a 2) in the reaction tank I (1 a) through a separating valve I (1 a 3); the other ends of the valve III (23) and the valve IV (24) are connected in parallel and then connected with a filter II (1 b 2) in the reaction tank II (1 b) through a separating valve II (1 b 3).
2. An operation method applied to the double-tank circulation hydrothermal reaction device of claim 1, characterized by comprising the following steps: the method comprises the following steps:
step one, starting: adding the reaction raw materials into two reaction tanks respectively, and adding water into one of the reaction tanks, wherein the water is not added into the other reaction tank; closing all valves;
step two, reaction: heating the reaction tank with water until the reaction is finished;
step three, orientation: determining the direction of water flow as that a reaction tank with water flows to a reaction tank without water through the control of a valve I, a valve II, a valve III and a valve IV;
step four, discharging liquid: opening the two partition valves, starting the circulating pump, pumping water in the reaction tank with water into the reaction tank without water, and then closing all the valves;
step five, discharging and feeding: opening the reaction tank which has discharged water, discharging, and then feeding;
step six, repeating: and forming continuous production according to the steps from the second step to the fourth step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110201169.3A CN112774597A (en) | 2021-02-23 | 2021-02-23 | Double-tank circulating hydrothermal reaction device and operation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110201169.3A CN112774597A (en) | 2021-02-23 | 2021-02-23 | Double-tank circulating hydrothermal reaction device and operation method |
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| CN112774597A true CN112774597A (en) | 2021-05-11 |
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| CN202110201169.3A Pending CN112774597A (en) | 2021-02-23 | 2021-02-23 | Double-tank circulating hydrothermal reaction device and operation method |
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| CN102677503A (en) * | 2012-05-29 | 2012-09-19 | 中国科学院过程工程研究所 | Biomass continuous hydrothermal pretreatment reactor |
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Address after: 100089 environmental protection office, 27 West Third Ring Road North, Zizhuyuan street, Haidian District, Beijing Applicant after: Institute of resources and environment, Beijing Academy of science and technology Address before: 100089 environmental protection office, 27 West Third Ring Road North, Zizhuyuan street, Haidian District, Beijing Applicant before: ENVIRONMENTAL PROTECTION Research Institute OF LIGHT INDUSTRY |
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Inventor after: Yao Jingjing Inventor after: Zhang Chengliang Inventor after: Zhang Jianzhong Inventor after: Mu Zhen Inventor before: Zhang Jianzhong Inventor before: Zhang Chengliang Inventor before: Yao Jingjing Inventor before: Mu Zhen |
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Application publication date: 20210511 |