CN205472688U - Biological fermentation abandonment carbon dioxide retrieves purification device - Google Patents
Biological fermentation abandonment carbon dioxide retrieves purification device Download PDFInfo
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- CN205472688U CN205472688U CN201620024384.5U CN201620024384U CN205472688U CN 205472688 U CN205472688 U CN 205472688U CN 201620024384 U CN201620024384 U CN 201620024384U CN 205472688 U CN205472688 U CN 205472688U
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Abstract
The utility model belongs to greenhouse gases recovery plant field, concretely relates to biological fermentation abandonment carbon dioxide retrieves purification device. The device is connected gradually through the pipeline and is constituteed by dish gas holder 1, booster fan 2, cooler 3, compressor system 6, fine purifiation tower 4, water separator 5, compressor system 6, dehumidifier 7, adsorption tower, drying tower, condenser 12, decontaminating column 13, compressor system 6, fine purifiation tower 4, water separator 5, compressor system 6 form the compression return -flow systems, 6 tops of compressor system are equipped with two imports, 6 bottoms of compressor system are equipped with two exports. The utility model discloses the device system retrieves and to obtain food level carbon dioxide, and food level carbon dioxide product purity is higher than 99.9%, is reducing by a wide margin the performance index that the energy consumption improves the carbon dioxide product simultaneously.
Description
Technical field
This utility model belongs to greenhouse gases reclaimer field, is specifically related to biofermentation and discards carbon dioxide recovery purification devices.
Background technology
CO2Belong to greenhouse gases.Due to CO2A large amount of discharges of isothermal chamber gas, cause global warming, each fields such as the social economy to countries in the world have a negative impact, the generation of the phenomenons such as it can cause such as shortage of water resources, living environment to deteriorate, economic loss aggravation, sea level rise, heat wave attack increase, human health, by serious threat, is additionally also possible to the aggravation causing species to change.Data according to International Energy Agency (IEA) show, in addition to the impact of economic crisis in 2009, and the CO of discharge of global year over the years2Gas gross all shows a rising trend, CO2Concentration significantly increases, and result in serious greenhouse effect.In order to contain global warming trend, various countries negotiator the most repeatedly gathers, and has successively passed through Kyoto Protocol, " Copenhagen agreement ", it is intended to reduce CO2Discharge, controls the global temperatures rate of climb.China became world CO after 20052Annual emissions the first big country.China is still in high speed development stage, CO at present2Year generation amount will persistently rise.As World Economics power and politics big country, China faces CO2The huge responsibility reduced discharging and pressure.Therefore, control greenhouse gas emission, effectively carry out CO2It is imperative that capture recovery, the research transported and store and industrialization convert, very urgent.
Alcohol Plant of China is with starchiness non-grain crop raw material production edible ethanol mostly, and fermentation is one of core process of ethanol enterprise production.Yeast changes into ethanol sugar during the fermentation, the most also produces carbon dioxide, and its total reaction equation is:
C6H12O6+ enzyme → 2C2H5OH+2CO2
The main by-product produced during carbon dioxide is Alcohol Production sweat as can be seen from the above equation, often produce 1 ton of ethanol and can obtain carbon dioxide about 0.96 ton in theory, in alcohol fermentation gas, the concentration of carbon dioxide is higher, can reach 95 more than %, its impurity is alcohols, aldehydes, esters and trace oxygen, is beneficial to produce highly purified food-grade carbon-dioxide.As a example by the Alcohol Plant producing ethanol 100,000 tons per year, its production process can produce carbon dioxide 90,000 tons year.The direct discharge of carbon dioxide not only endangers environment, is the most also a kind of wasting of resources.If able to this partial CO 2 is reclaimed, either protection environment is reduced the discharge of greenhouse gases, or the benefit to enterprise is all highly significant.
Summary of the invention
This utility model is for present situations such as the direct emission hazard environment of carbon dioxide of generation, the wastings of resources in the industry of starchiness non-grain crop production ethanol, carry out the recovery of side-product carbon dioxide and the research of purification, a kind of biofermentation is provided to discard carbon dioxide recovery purification devices, " fine purifiation, adsorption dry and cryogenic rectification group technology " is used to produce food-grade carbon-dioxide, improve the added value of carbon dioxide by-product, reduce greenhouse gas emission for industry simultaneously and play the exemplary role of professional.
Scheme of the present utility model is by being achieved in that: a kind of biofermentation discards carbon dioxide recovery purification devices, it is characterized in that, this device is sequentially connected with by pipeline by dish gas holder 1, booster fan 2, cooler 3, compressor assembly 6, fine purifiation tower 4, water separator 5, compressor assembly 6, dehumidifier 7, adsorption tower, drying tower, condenser 12, purifying column 13 and forms, and described compressor assembly 6, fine purifiation tower 4, water separator 5, compressor assembly 6 form compression and back streaming system；Described compressor assembly 6 top is provided with two imports, is provided with two outlets bottom compressor assembly 6.
As further restriction of the present utility model, described compressor assembly 6 top is provided with two imports and is respectively as follows: first-level buffer device import 6-1 and secondary buffer import 6-2；It is provided with two outlets bottom described compressor assembly 6 and is respectively as follows: three grades of separator outlet 6-3 and primary separator outlet 6-4.
As further restriction of the present utility model, described compression and back streaming system is to first pass around secondary buffer import 6-2 through the gas of subcooler 3 to enter compressor assembly 6, gas exits into fine purifiation tower 4 from primary separator outlet 6-4 after compression, rear entrance water separator 5, returned to compressor assembly 6 by first-level buffer device import 6-1 again, exit into dehumidifier 7 from three grades of separator outlet 6-3 after recompression.
As further restriction of the present utility model, described adsorption tower includes adsorption tower A8, adsorption tower B9；Described drying tower includes drying tower A10, drying tower B11.
The technical basis that this utility model realizes is: produce carbon dioxide tail gas for Alcohol Plant's device large scale fermentation, use " fine purifiation, adsorption dry and cryogenic rectification group technology " produce food-grade carbon-dioxide, mainly include fine purifiation operation, absorption process, drying process, liquefaction operation, purification process and compression section, the different process such as the classified compression of CO 2 raw material gas and the fine purifiation combination diversity (methanol in unstripped gas to dispelling different classes of impurity, ethanol, the water-solubility impurities such as aldehydes), form this utility model system and device, carbon dioxide gas-liquid mixture is made to use the technological parameter that Combined classification liquefying and rectifying device purifies, realize without outer supplying heat source, automatic back flow without additionaling power, and emptying loss can be lowered to greatest extent.This utility model uses oil-free lubrication reciprocating-piston edible CO 2 compressor to carry out multi-stage compression (compression and back stream mode), in the compression process of every one-level, removes different impurity.After one stage of compression, use washing, remove most soluble impurity in unstripped gas；Two-stage compression uses chemical oxidization method to remove alcohols and aldehydes, cool down with the gas interactions coolant after three stage compression, remove saturation water, and reduce unstripped gas temperature, being conducive to the adsorbent absorption to impurity, unstripped gas after absorption utilizes energy-conservation except in water, beneficially dry run of the cold dropped a hint, again through molecular sieve desiccant further except water, water content in unstripped gas is made to meet product quality requirement.
This utility model possesses following good result: this utility model apparatus system is to use oil-free lubrication reciprocating-piston edible CO 2 compressor to carry out the upgrading of multi-stage compression comprehensive utilization technique under new technology, use this utility model apparatus system to reclaim and obtain food-grade carbon-dioxide, and food-grade carbon-dioxide product purity is higher than 99.9%, remaining all technical all meets food-grade carbon-dioxide standard GB10621-2006, is reducing significantly energy consumption and improve simultaneously the performance indications of carbon dioxide product.
Accompanying drawing explanation
Fig. 1. biofermentation discards carbon dioxide recovery purification devices.Figure identifies: 1: dish gas holder, 2: booster fan, 3: cooler, 4: fine purifiation tower, 5: water separator, 6: compressor assembly, 6-1: first-level buffer device import, 6-2: secondary buffer import, 6-3: three grades of separator outlets, 6-4: primary separator exports, and 7: dehumidifier, 8: adsorption tower A, 9: adsorption tower B, 10: drying tower A, 11: drying tower B, 12: condenser, 13: purifying column.
Detailed description of the invention
Describing this utility model biofermentation below in conjunction with embodiment and accompanying drawing and discard carbon dioxide recovery purification devices, these descriptions are not to be further limited this utility model content.
Embodiment 1
As shown in Figure 1, this utility model device is sequentially connected with by pipeline by dish gas holder 1, booster fan 2, cooler 3, compressor assembly 6, fine purifiation tower 4, water separator 5, compressor assembly 6, dehumidifier 7, adsorption tower, drying tower, condenser 12, purifying column 13 and forms, and described compressor assembly 6, fine purifiation tower 4, water separator 5, compressor assembly 6 form compression and back streaming system；Described compressor assembly 6 top is provided with two imports, is provided with two outlets bottom compressor assembly 6.Described compressor assembly 6 top is provided with two imports and is respectively as follows: first-level buffer device import 6-1 and secondary buffer import 6-2；It is provided with two outlets bottom described compressor assembly 6 and is respectively as follows: three grades of separator outlet 6-3 and primary separator outlet 6-4.Described compression and back streaming system is to first pass around secondary buffer import 6-2 through the gas of subcooler 3 to enter compressor assembly 6, gas exits into fine purifiation tower 4 from primary separator outlet 6-4 after compression, rear entrance water separator 5, returned to compressor assembly 6 by first-level buffer device import 6-1 again, exit into dehumidifier 7 from three grades of separator outlet 6-3 after recompression.Described adsorption tower includes adsorption tower A8, adsorption tower B9；Described drying tower includes drying tower A10, drying tower B11.
Application Example 2
nullThe tail gas produced after fermenting with Guangxi large-scale Cassava alcohol fermentation factory initiates for gas，During use，Waste gas first passes through pipeline successively from dish gas holder 1、Booster fan 2、Cooler 3、Compressor assembly 6、Fine purifiation tower 4、Water separator 5、Compressor assembly 6、Dehumidifier 7、Adsorption tower、Drying tower、Condenser 12、Purifying column 13 passes through，Wherein in the compression and back streaming system stage，Gas first passes around the gas of cooler 3 and first passes around secondary buffer import 6-2 entrance compressor assembly 6，Gas exits into fine purifiation tower 4 from primary separator outlet 6-4 after compression，Rear entrance water separator 5，Compressor assembly 6 is returned to again by first-level buffer device import 6-1，Exit into dehumidifier 7 from three grades of separator outlet 6-3 after recompression，Finally pass sequentially through adsorption tower A8、Adsorption tower B9、Drying tower A10、Drying tower B11、Condenser 12、Purifying column 13，Finally realize the recovery purification of tail gas，Obtain food-grade carbon-dioxide.
Use this utility model apparatus system to reclaim and obtain food-grade carbon-dioxide, and food-grade carbon-dioxide product purity is higher than 99.9%, remaining all technical all meets food-grade carbon-dioxide standard GB10621-2006, table 1 specific as follows, is reducing significantly energy consumption and is improving simultaneously the performance indications of carbon dioxide product.
Table 1 reclaims purification and obtains food-grade carbon-dioxide performance indications
This utility model above-described embodiment scheme is only that explanation of the present utility model can not be limited this utility model, claim indicating, this utility model equipment is constituted and connected mode, and the scope of this utility model parameter is not pointed out in above-mentioned explanation, therefore, any change in the implication suitable with claims of the present utility model and scope, is all considered to be and is included within the scope of the claims.
Claims (4)
1. a biofermentation discards carbon dioxide recovery purification devices, it is characterized in that, this device is sequentially connected with by pipeline by dish gas holder (1), booster fan (2), cooler (3), compressor assembly (6), fine purifiation tower (4), water separator (5), compressor assembly (6), dehumidifier (7), adsorption tower, drying tower, condenser (12), purifying column (13) and forms, and described compressor assembly (6), fine purifiation tower (4), water separator (5), compressor assembly (6) form compression and back streaming system；Described compressor assembly (6) top is provided with two imports, and compressor assembly (6) bottom is provided with two outlets.
Biofermentation the most according to claim 1 discards carbon dioxide recovery purification devices, it is characterised in that described compressor assembly (6) top is provided with two imports and is respectively as follows: first-level buffer device import (6-1) and secondary buffer import (6-2)；Described compressor assembly (6) bottom is provided with two outlets and is respectively as follows: three grades of separator outlets (6-3) and primary separator outlet (6-4).
Biofermentation the most according to claim 2 discards carbon dioxide recovery purification devices, described compression and back streaming system is to first pass around secondary buffer import (6-2) through the gas of subcooler (3) to enter compressor assembly (6), gas exits into fine purifiation tower (4) from primary separator outlet (6-4) after compression, rear entrance water separator (5), returned to compressor assembly (6) by first-level buffer device import (6-1) again, exit into dehumidifier (7) from three grades of separator outlets (6-3) after recompression.
Biofermentation the most according to claim 1 discards carbon dioxide recovery purification devices, it is characterised in that described adsorption tower includes adsorption tower A(8), adsorption tower B(9)；Described drying tower includes drying tower A(10), drying tower B(11).
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| CN201620024384.5U CN205472688U (en) | 2016-01-12 | 2016-01-12 | Biological fermentation abandonment carbon dioxide retrieves purification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105439145A (en) * | 2016-01-12 | 2016-03-30 | 广西新天德能源有限公司 | Biological fermentation waste carbon dioxide recovery and purification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105439145A (en) * | 2016-01-12 | 2016-03-30 | 广西新天德能源有限公司 | Biological fermentation waste carbon dioxide recovery and purification device |
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