CN109521154B - Device and method for detecting alcohol concentration in biomass fermentation - Google Patents
Device and method for detecting alcohol concentration in biomass fermentation Download PDFInfo
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- CN109521154B CN109521154B CN201811116022.9A CN201811116022A CN109521154B CN 109521154 B CN109521154 B CN 109521154B CN 201811116022 A CN201811116022 A CN 201811116022A CN 109521154 B CN109521154 B CN 109521154B
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- 238000000855 fermentation Methods 0.000 title claims abstract description 99
- 230000004151 fermentation Effects 0.000 title claims abstract description 96
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000002028 Biomass Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 185
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 92
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 92
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000001301 oxygen Substances 0.000 claims abstract description 49
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 49
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 26
- 239000007789 gas Substances 0.000 claims description 16
- 239000012295 chemical reaction liquid Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 4
- 239000008103 glucose Substances 0.000 claims description 4
- 230000001012 protector Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000011897 real-time detection Methods 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000001476 alcoholic effect Effects 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- LKDRXBCSQODPBY-VRPWFDPXSA-N D-fructopyranose Chemical compound OCC1(O)OC[C@@H](O)[C@@H](O)[C@@H]1O LKDRXBCSQODPBY-VRPWFDPXSA-N 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
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- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
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- Combustion & Propulsion (AREA)
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- General Health & Medical Sciences (AREA)
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- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The embodiment of the application provides a device and a method for detecting alcohol concentration in biomass fermentation, comprising the following steps: a dissolved oxygen sensor arranged at the bottom in the fermentation generator; the acidimeter is arranged at the bottom in the fermentation generator; the carbon dioxide collector is communicated with the fermentation generator through a collecting pipe; a carbon dioxide sensor disposed within the carbon dioxide collector; a processor; the dissolved oxygen sensor, the acidimeter and the carbon dioxide sensor are all connected to the processor. The invention can carry out real-time detection on the alcohol concentration under the condition of not interrupting the fermentation process, improves the working efficiency, avoids uncertain factors of manual detection and improves the accuracy to a certain extent.
Description
Technical Field
The invention belongs to the technical field of biomass fermentation, and particularly relates to a device and a method for detecting alcohol concentration in biomass fermentation.
Background
In the field of alcohol production by biomass waste fermentation, the concentration of the produced alcohol is an important parameter for measuring the success of a primary fermentation process. Therefore, the alcohol content detection is very important work, the alcohol concentration in the fermentation liquor can be accurately and timely detected, the fermentation environment can be timely changed, a better fermentation process is realized, and the utilization rate of biomass is improved.
In the prior art, a common method for detecting alcohol concentration is to measure the specific gravity of a liquid by using a hydrometer and obtain the corresponding alcohol concentration according to the specific gravity. The hydrometer is designed according to Archimedes' law, and when a hydrometer with a certain weight is inserted into liquid, the volume of the liquid (corresponding to the immersion height) which is discharged is measured, and then the specific gravity of the liquid can be obtained. And because the specific gravity of the fermentation liquor and the alcoholic strength of the fermentation liquor have one-to-one correspondence, the alcoholic strength of the liquid to be measured can be obtained after the specific gravity is read. The other is determined by distillation methods which are customary in laboratories.
However, whether the measurement is performed using a hydrometer or a distillation method, it is required to be performed in a state where the fermentation process is suspended, the fermentation process is affected due to a long interval time, and the accuracy of the detection is affected to some extent due to the manual detection. More accurate measurement methods are currently used only in laboratories using liquid chromatographs and mass spectrometers.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device and a method for detecting the alcohol concentration of biomass fermentation, which aim to solve the technical problems.
In a first aspect, an embodiment of the present application provides an apparatus for detecting alcohol concentration in biomass fermentation, which is used for a fermentation generator, and the apparatus includes:
a dissolved oxygen sensor arranged at the bottom in the fermentation generator;
the acidimeter is arranged at the bottom in the fermentation generator;
the carbon dioxide collector is communicated with the fermentation generator through a collecting pipe;
a carbon dioxide sensor disposed within the carbon dioxide collector;
a processor;
the dissolved oxygen sensor, the acidimeter and the carbon dioxide sensor are all connected to the processor.
With reference to the first aspect, in a first embodiment of the first aspect, the dissolved oxygen sensor is disposed about 3cm above the bottom within the fermentation generator.
With reference to the first aspect, in a second embodiment of the first aspect, the acidimeter is disposed about 3cm above the bottom within the fermentation generator.
With reference to the first aspect, in a third embodiment of the first aspect, the carbon dioxide sensor is disposed about 3cm above a bottom within the carbon dioxide collector.
With reference to the first aspect, in a fourth embodiment of the first aspect, one end of the collecting pipe is communicated with an exhaust pipe at the top of the fermentation generator, the other end of the collecting pipe is communicated with a vent hole at the top of the carbon dioxide collector, and a valve is arranged on the collecting pipe close to the vent hole.
With reference to the first aspect, in a fifth implementation manner of the first aspect, the apparatus further includes: the upper computer is connected with the processor in a wireless manner.
With reference to the first aspect, in a sixth implementation manner of the first aspect, the apparatus further includes: the gas protector comprises a gas inlet pipe and a gas outlet pipe, and the gas inlet pipe is communicated with the bottom of the fermentation generator; one end of the air outlet pipe is communicated with an exhaust pipe at the top of the fermentation generator; the air inlet pipe and the air outlet pipe are provided with valves.
In a second aspect, the present application provides a method for detecting an alcohol concentration in biomass fermentation, the method including:
obtaining the dissolved oxygen concentration of liquid in the fermentation generator;
acquiring the pH value difference of liquid in a fermentation generator;
acquiring the concentration of carbon dioxide in a carbon dioxide collector;
judging whether fermentation starts or not according to the dissolved oxygen concentration:
if yes, calculating the alcohol concentration according to the pH value difference and the carbon dioxide concentration;
otherwise, the judgment of whether the fermentation is started or not is circulated.
With reference to the second aspect, in a first embodiment of the second aspect, the determining whether to start fermentation according to the dissolved oxygen concentration includes:
setting a dissolved oxygen concentration threshold;
judging whether the obtained dissolved oxygen concentration reaches the dissolved oxygen concentration threshold value:
if yes, judging that the fermentation is started;
otherwise, the judgment of the dissolved oxygen concentration is circulated.
With reference to the second aspect, in a second implementation manner of the second aspect, the calculating the alcohol concentration according to the ph value and the carbon dioxide concentration includes:
converting the difference between the current pH value of the reaction liquid and the pH value of the reaction liquid at the beginning of the reaction into the dissolved carbon dioxide amount in the solution;
calculating the amount of gaseous carbon dioxide based on the carbon dioxide concentration and the capacity of the carbon dioxide collector;
calculating the amount of carbon dioxide according to the amount of dissolved carbon dioxide and the amount of gaseous carbon dioxide;
calculating the amount of alcohol generated by fermentation according to a chemical equation of the glucose anaerobic fermentation reaction and the amount of carbon dioxide;
and calculating the alcohol concentration according to the alcohol content and the volume of the reaction liquid.
The beneficial effect of the invention is that,
according to the method and the device for detecting the alcohol concentration in the biomass fermentation, whether the fermentation reaction starts or not is judged by detecting the dissolved oxygen concentration in the reaction liquid through the dissolved oxygen sensor, the amount of carbon dioxide generated in the fermentation reaction process is obtained through the acidimeter, the carbon dioxide collector and the carbon dioxide sensor after the reaction starts, and the processor calculates the alcohol generation amount according to the carbon dioxide amount and the fermentation reaction equation so as to calculate the alcohol concentration. The invention can carry out real-time detection on the alcohol concentration under the condition of not interrupting the fermentation process, improves the working efficiency, avoids uncertain factors of manual detection and improves the accuracy to a certain extent.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of the structure of an apparatus according to an embodiment of the present application;
FIG. 2 is a schematic block diagram of an apparatus of one embodiment of the present application;
wherein, 1, a fermentation generator; 2. a dissolved oxygen sensor; 3. an acidimeter; 4. a carbon dioxide sensor; 5. a carbon dioxide collector; 6. a collection pipe; 7. an exhaust pipe; 8. a processor; 9. an upper computer; 10. a WIFI module; 11. an air inlet pipe; 12. and an air outlet pipe.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all 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 following explains key terms appearing in the present application.
As shown in fig. 1, the device 100 for detecting alcohol concentration in biomass fermentation provided by the present application is used for a fermentation generator 1, and in the present embodiment, an interlayer is disposed in a body wall of the fermentation generator 1 for maintaining an optimal temperature required for fermentation of biomass waste.
The device comprises a dissolved oxygen sensor 2 arranged at the bottom in the fermentation generator; an acidimeter 3 arranged at the bottom in the fermentation generator; the carbon dioxide collector 5 is communicated with the fermentation generator 1 through a collecting pipe 6, one end of the collecting pipe 6 is communicated with an exhaust pipe 7 at the top of the fermentation generator 1, the other end of the collecting pipe 6 is communicated with a vent hole at the top of the carbon dioxide collector 5, and a valve is arranged at the position, close to the vent hole, of the collecting pipe 6; a carbon dioxide sensor 4 disposed inside the carbon dioxide collector 5; a processor 8; the dissolved oxygen sensor 2, the acidimeter 3 and the carbon dioxide sensor 4 are all connected to a processor 8.
In this example, a dissolved oxygen sensor 2 is placed about 3cm above the bottom of the fermentation generator 1 to test whether the current environment is an anaerobic environment, with the level set as a preferred embodiment.
In this example, a pH meter 3 is provided about 3cm above the inside bottom of the fermentation generator 1 for measuring the real-time pH of the reaction liquid, with the setting of the height of the position being a preferred embodiment.
In this example, the carbon dioxide sensor 4 is placed about 3cm above the bottom of the carbon dioxide collector 5, with the height of the location set as a preferred embodiment.
The processor 8 in this embodiment is a single chip microcomputer.
In this embodiment, the processor 8 is connected with a WiFi module 10, and wireless connection is realized with the host computer 9 through this module, and then the amount of alcohol produced by biomass fermentation is monitored in real time in a remote manner through the host computer 9. In another embodiment of the present invention, the processor 8 may not be provided with the WiFi module 10, the processor 8 is connected to a display, and a production person views the detection status data information in the production workshop.
Before the fermentation starts, nitrogen is introduced into the fermentation generator 1 or the gas is evacuated to create an oxygen-free environment. The step is not necessary for the device for detecting the alcohol concentration of biomass fermentation provided by the invention, and the creation of an anaerobic environment belongs to the necessary step of fermentation industrial production. The gas protector is added here to facilitate the implementation of the detection. The gas protector in the embodiment comprises a gas inlet pipe 11 and a gas outlet pipe 12, wherein the gas inlet pipe 11 is communicated with the bottom of the fermentation generator 1; one end of the air outlet pipe 12 is communicated with an air outlet pipe 7 at the top of the fermentation generator 1; the air inlet pipe 11 and the air outlet pipe 12 are both provided with valves. Nitrogen is input into the fermentation generator 1 from the air inlet pipe 11, at the moment, the valve of the collecting pipe 6 is closed, and the valve of the air outlet pipe 12 is opened, so that oxygen in the fermentation generator is discharged from the air outlet pipe 12. After the oxygen in the fermentation generator 1 is exhausted, the valves of the air inlet pipe 11 and the air outlet pipe 12 are closed.
The dissolved oxygen sensor 2 measures the oxygen content in the fermentation generator 1, which is extremely low because the fermentation process is anaerobic. The dissolved oxygen sensor 2 sends the dissolved oxygen concentration to the processor 8, a dissolved oxygen concentration threshold is set in the processor 8, and after the dissolved oxygen concentration reaches the threshold, the processor 8 judges that the fermentation reaction starts. After the reaction is judged to start, the processor 8 acquires the pH value and the real-time pH value detected by the pH meter 3 at the reaction starting moment; and opening a valve of the collecting pipe 6 to obtain the real-time carbon dioxide concentration detected by the carbon dioxide sensor 4. The method for calculating the alcohol concentration after the reaction is started comprises the following steps: calculating the difference value between the real-time pH value and the initial pH value to obtain a real-time pH value difference, and calculating the dissolved carbon dioxide amount generated after the reaction starts according to the real-time pH value difference, wherein the principle is that carbon dioxide generates carbonic acid when meeting water; calculating the amount of carbon dioxide gas generated after the reaction starts according to the concentration of carbon dioxide detected by the carbon dioxide sensor 4 and the capacity of the carbon dioxide collector 5; the sum of the amount of dissolved carbon dioxide and the amount of carbon dioxide gas is the amount of carbon dioxide produced by the reaction. Glucose generated by the processes of pretreatment, hydrolysis and the like of biomass waste generates alcohol and carbon dioxide under the action of yeast in an anaerobic environment, and the reaction principle can be expressed as follows: C6H12O6 → 2C2H5OH +2CO 2. As can be seen from the equation, the amount of alcohol produced is in one-to-one relationship with the amount of carbon dioxide throughout the fermentation. And converting the generated alcohol amount according to the calculated carbon dioxide amount, and dividing the generated alcohol amount by the volume of the reaction liquid to obtain the real-time alcohol concentration. The processor 8 transmits the real-time alcohol concentration to the upper computer 9, and the upper computer 9 draws the obtained data into a line drawing so as to observe the change of the carbon dioxide more conveniently.
FIG. 2 is a schematic flow chart diagram of a method of one embodiment of the present application.
As shown in fig. 2, the method 100 includes:
if yes, calculating the alcohol concentration according to the pH value difference and the carbon dioxide concentration;
otherwise, the judgment of whether the fermentation is started or not is circulated.
Optionally, as an embodiment of the present application, the determining whether to start fermentation according to the dissolved oxygen concentration includes:
setting a dissolved oxygen concentration threshold;
judging whether the obtained dissolved oxygen concentration reaches the dissolved oxygen concentration threshold value:
if yes, judging that the fermentation is started;
otherwise, the judgment of the dissolved oxygen concentration is circulated.
Optionally, as an embodiment of the present application, the calculating the alcohol concentration according to the ph value and the carbon dioxide concentration includes:
converting the difference between the current pH value of the reaction liquid and the pH value of the reaction liquid at the beginning of the reaction into the dissolved carbon dioxide amount in the solution;
calculating the amount of gaseous carbon dioxide based on the carbon dioxide concentration and the capacity of the carbon dioxide collector;
calculating the amount of carbon dioxide according to the amount of dissolved carbon dioxide and the amount of gaseous carbon dioxide;
calculating the amount of alcohol generated by fermentation according to a chemical equation of the glucose anaerobic fermentation reaction and the amount of carbon dioxide;
and calculating the alcohol concentration according to the alcohol content and the volume of the reaction liquid.
Therefore, the dissolved oxygen sensor is used for detecting the dissolved oxygen concentration in the reaction liquid to judge whether the fermentation reaction starts or not, after the reaction starts, the carbon dioxide amount generated in the fermentation reaction process is obtained through the acidimeter, the carbon dioxide collector and the carbon dioxide sensor, and the processor calculates the alcohol production amount according to the carbon dioxide amount and the fermentation reaction equation to further calculate the alcohol concentration. The method can detect the alcohol concentration in real time without interrupting the fermentation process, improves the working efficiency, avoids uncertain factors of manual detection, and improves the accuracy to a certain extent.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A biomass fermentation alcohol concentration detection device for a fermentation generator, the device comprising:
a dissolved oxygen sensor arranged at the bottom in the fermentation generator;
the acidimeter is arranged at the bottom in the fermentation generator;
the carbon dioxide collector is communicated with the fermentation generator through a collecting pipe;
a carbon dioxide sensor disposed within the carbon dioxide collector;
a processor;
the dissolved oxygen sensor, the acidimeter and the carbon dioxide sensor are all connected to the processor;
one end of the collecting pipe is communicated with an exhaust pipe at the top of the fermentation generator, the other end of the collecting pipe is communicated with a vent hole at the top of the carbon dioxide collector, and a valve is arranged at the position, close to the vent hole, of the collecting pipe;
the dissolved oxygen sensor sends the concentration of the dissolved oxygen to the processor, a dissolved oxygen concentration threshold value is set in the processor, and the processor judges that the fermentation reaction starts after the concentration of the dissolved oxygen reaches the threshold value; after the reaction is judged to start, the processor acquires the pH value and the real-time pH value detected by the pH meter at the reaction starting moment, and the pH value and the real-time pH value at the reaction starting moment are used for calculating the content of dissolved carbon dioxide; the real-time carbon dioxide concentration detected by the carbon dioxide sensor is used for calculating the content of gaseous carbon dioxide, and the content of dissolved carbon dioxide and the content of gaseous carbon dioxide are used for calculating the alcohol concentration.
2. The apparatus of claim 1, wherein the dissolved oxygen sensor is positioned about 3cm above the bottom within the fermentation generator.
3. The apparatus of claim 1, wherein the acidimeter is disposed about 3cm above the bottom within the fermentation generator.
4. The apparatus of claim 1, wherein the carbon dioxide sensor is disposed about 3cm above a bottom within the carbon dioxide collector.
5. The apparatus of claim 1, further comprising: the upper computer is in wireless connection with the processor.
6. The apparatus of claim 1, further comprising: the gas protector comprises a gas inlet pipe and a gas outlet pipe, and the gas inlet pipe is communicated with the bottom of the fermentation generator; one end of the air outlet pipe (12) is communicated with an exhaust pipe at the top of the fermentation generator; the air inlet pipe and the air outlet pipe are provided with valves.
7. A method for detecting the alcohol concentration in biomass fermentation is characterized by comprising the following steps:
obtaining the dissolved oxygen concentration of liquid in the fermentation generator;
acquiring the pH value difference of liquid in a fermentation generator;
acquiring the concentration of carbon dioxide in a carbon dioxide collector;
judging whether fermentation starts or not according to the dissolved oxygen concentration:
if yes, calculating the alcohol concentration according to the pH value difference and the carbon dioxide concentration;
if not, circularly judging whether the fermentation is started or not;
the judging whether fermentation starts or not according to the dissolved oxygen concentration includes:
setting a dissolved oxygen concentration threshold;
judging whether the obtained dissolved oxygen concentration reaches the dissolved oxygen concentration threshold value:
if yes, judging that the fermentation is started;
if not, circularly judging the concentration of the dissolved oxygen;
the calculating the alcohol concentration according to the pH value and the carbon dioxide concentration comprises the following steps:
converting the difference between the current pH value of the reaction liquid and the pH value of the reaction liquid at the beginning of the reaction into the dissolved carbon dioxide amount in the solution;
calculating the amount of gaseous carbon dioxide based on the carbon dioxide concentration and the capacity of the carbon dioxide collector;
calculating the amount of carbon dioxide according to the amount of dissolved carbon dioxide and the amount of gaseous carbon dioxide;
calculating the amount of alcohol generated by fermentation according to a chemical equation of the glucose anaerobic fermentation reaction and the amount of carbon dioxide;
and calculating the alcohol concentration according to the alcohol content and the volume of the reaction liquid.
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| CN201811116022.9A CN109521154B (en) | 2018-09-25 | 2018-09-25 | Device and method for detecting alcohol concentration in biomass fermentation |
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| CN201811116022.9A CN109521154B (en) | 2018-09-25 | 2018-09-25 | Device and method for detecting alcohol concentration in biomass fermentation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH04155256A (en) * | 1990-10-18 | 1992-05-28 | Oozeki Kk | Online measurement of concentration of alcohol in continuous fermentation |
| CN100460496C (en) * | 2003-12-30 | 2009-02-11 | 西北农林科技大学 | Fermentation tank for monitoring fermenting process of grape wine according to fermentation exhuast gas concentration |
| NL2001067C2 (en) * | 2007-12-07 | 2009-06-09 | Spark Origin B V | Method and device for converting biomass into methane. |
| CN102901795A (en) * | 2012-10-16 | 2013-01-30 | 熊鹏 | Simple method for determining alcohol concentration of fermentation broth in real time during alcoholic fermentation |
| CN103091133B (en) * | 2013-02-18 | 2015-03-04 | 上海交通大学 | Collection and volume determination device of gas produced by fermentation |
| CN105467938A (en) * | 2014-09-04 | 2016-04-06 | 西安众智惠泽光电科技有限公司 | Beer fermentation tank monitoring method based on wireless network |
| CN107632120A (en) * | 2017-10-12 | 2018-01-26 | 浙江东成生物科技股份有限公司 | A kind of fermentation tank tail gas on-line detecting system |
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