CN102788884B - Method and device for detecting gaseous intermediate product of biomass thermochemical reaction on line - Google Patents
Method and device for detecting gaseous intermediate product of biomass thermochemical reaction on line Download PDFInfo
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- CN102788884B CN102788884B CN 201210271544 CN201210271544A CN102788884B CN 102788884 B CN102788884 B CN 102788884B CN 201210271544 CN201210271544 CN 201210271544 CN 201210271544 A CN201210271544 A CN 201210271544A CN 102788884 B CN102788884 B CN 102788884B
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Abstract
The invention discloses a method for detecting a gaseous intermediate product of biomass thermochemical reaction on line, belonging to the technical field of biomass energy and chemical industry. The method comprises the following steps: biomass thermochemical reaction, cyclone separation, coarse filtration, tar electrofishing, precision filtration and gaseous intermediate product intermediate sampling. The invention further provides a device for carrying out the method. The device comprises thermochemical reactor, a cyclone separator, a coarse filter, a precision filter, a three-way valve, afine adjustment valve, a six-way valve sample injector, a tar electrofisher and a charcoal collecting box. By the method, the problems that the gaseous intermediate product is cooled and deterioratedbefore analysis and impurities block pipelines of an analyzer and the like can be effectively solved; and during thermal cracking, pyrolysis carbonization, liquefaction or gasification of biomass, components of the gaseous intermediate product can be detected and analyzed.
Description
Technical field
The present invention relates to a kind of method of online detection of biological matter thermal chemical reaction gas phase intermediate product, belong to the biomass energy chemical technology field.
Background technology
In view of the rich and recyclability of resource and the spatter property of conversion process, biomass energy has become one of of paramount importance new forms of energy of society, has caused the extensive attention of countries in the world.From transforming principle, the trans-utilization technology of biomass energy can be summed up as the three types such as physics transformation technology, conversion technology and thermochemistry transformation technology.Comparatively speaking, not only product is than horn of plenty, various, high value for the thermochemistry method for transformation, and technique is relatively succinct, is the present hot technology of research and development.
The biomass thermal chemical conversion comprises gasification, destructive distillation, charing, thermal cracking liquefaction etc., and these technical processes have generally all comprised generation and the differentiation of gas phase intermediate product.Conventional analyzing detecting method mainly is that the product after the biomass thermal chemical conversion is carried out off-line test, as usually being that the bio oil that obtains after to the pyrolysis gas condensation is tested in the analysis of thermal cracking liquefaction technology, when test destructive distillation product, also be that the pyrolkigneous liquid after the pyrolysis gas condensation is tested.Because multiple physics, chemical change can occur in the gas phase intermediate product in the subsequent condensation process, can not reflect well the analysis of its condensed product and situation in the biomass thermal chemical reaction process also to be unfavorable in time adjusting simultaneously thermal chemical reaction condition and subsequent condensation condition.Therefore, because the limitation of detection means, the biomass thermal chemical reaction usually is considered to " black box " process, and the high deep processing and utilization that this has affected living beings has to a certain extent limited the fast development of biomass energy technology and related industry.
Because the biomass thermal chemical reaction process is to carry out under the condition of high temperature, and often be attended by the impurity such as solid particle charcoal, the gas phase intermediate product very easily cools off sex change with the ambient temperature variation, particularly condensation reaction generation tar class macromolecular substances occurs in the easy temperature influences of material such as contained phenol, aldehyde (generally very easily occuring below 200 ℃), causes stopping up the sample introduction pipeline of subsequent analysis instrument.That stops up in addition the sample introduction pipeline also comprises the impurity such as charcoal particle.Therefore, realize the online key that detects of biomass thermal chemical reaction gas phase intermediate product is how to realize sampling under the condition of high temperature and the accurate filtration of specimen, yet, up to the present, the relevant report of this correlation technique not.
Summary of the invention
One of purpose of the present invention is the method that proposes a kind of online detection of biological matter thermal chemical reaction gas phase intermediate product, present biomass thermal chemical reaction can't detect online, offline inspection is unreliable to solve, can not in time according to problems such as intermediate product Character adjustment reaction process conditions, realize online detection and the accurately control of biomass thermal chemical reaction gas phase intermediate product.
Two of purpose of the present invention has provided the device of described online detection of biological matter thermal chemical reaction gas phase intermediate product.
A kind of method of online detection of biological matter thermal chemical reaction gas phase intermediate product, described method step is as follows:
Step 1, biomass material thermal chemical reaction
Make biomass material carry out pyrolysis charring, liquefaction or gasification reaction, generate the gas phase intermediate product with the solid particle charcoal;
Granularity≤the 2mm of preferred biomass material; Water cut is 5～12%; Temperature of reaction is 200～800 ℃;
Step 2, cyclonic separation
To carry out cyclone dust removal with the gas phase intermediate product of solid particle charcoal;
Preferred cyclone dust removal is carried out in cyclone separator, the gas velocity of cyclone inlet is 10～20m/s, cyclone separator pressure drop scope is 0.40～0.65kPa, cyclone separator is put with companion's hot charging, make the temperature difference of temperature in the cyclone separator and gas phase intermediate product≤5 ℃, cyclone separator solid dust removal rate can reach more than 90%;
Step 3, coarse filtration
Gas phase intermediate product after the cyclone dust removal is filtered, further remove the solid impurity that contains in the gas phase intermediate product, the coarse filtration aperture is 6 μ m～8 μ m;
Preferably filter by the gas phase intermediate product of coarse filter after to cyclone dust removal, coarse filter is put with companion's hot charging, makes the temperature difference of temperature in the coarse filter and gas phase intermediate product≤5 ℃; Through after the coarse filtration, the total solid dust removal rate of gas phase intermediate product can reach more than 99%;
Step 4, electrically trapped tar oil
Remove the tar base polymer impurity that contains in the gas phase intermediate product after the coarse filtration;
Preferably remove the tar base polymer impurity that contains in the gas phase intermediate product by electrical tar precipitator; The residence time of gas phase intermediate product in electrical tar precipitator is 2s～3.5s, and electrical tar precipitator is put with companion's hot charging, makes the temperature difference of temperature in the electrical tar precipitator and gas phase intermediate product≤5 ℃;
Step 5, secondary filter
To carry out secondary filter through the gas phase intermediate product of electrical tar precipitator, the secondary filter aperture is 0.8 μ m～2 μ m;
Preferably by accurate filter, the gas phase intermediate product through electrical tar precipitator is carried out secondary filter; Accurate filter is put with companion's hot charging, makes the temperature difference of temperature and gas phase intermediate product in the accurate filter≤5 ℃, pass through electric fishing decoking and secondary filter after, the dust removal rate of gas phase intermediate product can reach more than 99.99%;
Step 6, the sampling of gas phase intermediate product
Gas phase intermediate product after the secondary filter is adjusted to pressure is＜0.6MPa, the gas phase intermediate product is taken a sample, under the carrier gas effect, the gas phase intermediate product of sampling sent into and detect in the analytical instrument; Described carrier gas is that purity is 99.9999% high pure nitrogen.
After preferably the gas phase intermediate product being heated by well heater, take a sample in the input six-way valve injector, six-way valve injector primary sample amount is 5 μ L～20 μ L, and the temperature of well heater is 200～350 ℃;
Described analytical instrument is the conventional instrument in analytical chemistry field, such as gas chromatographicanalyzer (GC), gas chromatography-mass spectrography analyser (GC-MS), Fourier's infrared spectrometric analyzer (FTIR), flue gas analyzer.
A kind of device of online detection of biological matter thermal chemical reaction gas phase intermediate product, described device is used for the method for online detection of biological matter thermal chemical reaction gas phase intermediate product of the present invention, and described device comprises: thermochemical reactor, cyclone separator, coarse filter, accurate filter, T-valve, micrometering valve, six-way valve injector, electrical tar precipitator and collection charcoal case.
Wherein the bottom of thermochemical reactor is provided with charging aperture, and the top outlet of thermochemical reactor is connected with the entrance of cyclone separator; The lower part outlet of cyclone separator links to each other with collection charcoal case, the top outlet of cyclone separator is connected with coarse filter one end, the coarse filter other end is connected with the electrical tar precipitator entrance, the electrical tar precipitator outlet is connected with accurate filter one end, the accurate filter other end is connected with T-valve one end, change the flow direction by T-valve, the other end of T-valve is connected with micrometering valve one end, the other end of micrometering valve is connected with an end of six-way valve injector, and the other end of six-way valve injector is connected with analytical instrument; Pass through pipeline UNICOM between each device.
Preferred described device also is equipped with well heater between T-valve and six-way valve injector.
Acting as of thermochemical reactor carried out pyrolysis charring, liquefaction or gasification reaction with the raw material after the drying and crushing;
Acting as of cyclone separator, the charcoal that pyrolysis in the thermochemical reactor is obtained separates with the gas phase intermediate product;
Acting as of coarse filter, accurate filter, the gas phase intermediate product that cyclone separator is obtained filters, and removes solid impurity;
Acting as of electrical tar precipitator removed the tar in the gas phase intermediate product;
Acting as of T-valve, water conservancy diversion and change gas phase intermediate product flow to;
Acting as of micrometering valve further reduced the pressure of gas phase intermediate product in the pipeline;
Acting as of collection charcoal case collected cyclone separator and separated the charcoal that obtains.
Acting as of well heater makes the gas phase intermediate product that enters analytical instrument keep constant temperature in the usable range of analytical instrument;
Acting as of six-way valve injector provides the sample of quantitative sample injection for analytical instrument;
Preferably be provided with along clockwise direction six interface holes of a～f on the six-way valve injector, be connected with quantitative ring between f and c, described quantitative ring is that volume quantitative is the pipeline of 5 μ L～20 μ L;
Under the sampling state, af, bc, the connection of ed section become UNICOM's pipeline, and the gas phase intermediate product enters from a hole, through behind af UNICOM pipeline, quantitative ring, the cb UNICOM pipeline, discharge from the b hole successively, make to be full of the gas phase intermediate product in the quantitative ring, finish sampling; Carrier gas enters from the e hole, enters analytical instrument through ed UNICOM pipeline;
Under the sample introduction state, ab, cd, the connection of ef section become UNICOM's pipeline, and the gas phase intermediate product enters from a hole, discharges from the b hole; Carrier gas enters from the e hole, through behind ef UNICOM pipeline, quantitative ring, the cd UNICOM pipeline, the gas phase intermediate product in quantitatively encircling is sent into analytical instrument successively, finishes sample introduction.
Beneficial effect
The invention provides a kind of method of online detection of biological matter thermal chemical reaction gas phase intermediate product, can effectively avoid the gas phase intermediate product before analysis, to cool off the problems such as sex change, impurity obstruction analytical instrument pipeline, realize that the gas phase intermediate product in biomass through pyrolysis pyrolysis charring, liquefaction or the gasification reaction process is carried out component to be detected and constituent analysis.For the development of new techniques such as the online regulation and control of living beings thermochemical reaction process, selectivity of product conversion provide strong technological means, promote development and the application of biomass energy technology.
Description of drawings
Fig. 1 is the structural representation of embodiment 1,2 online detection of biological matter thermal chemical reaction gas phase intermediate product devices.
Fig. 2 is the structural representation of six-way valve injector.
Fig. 3 is that the yellow jacket timber thermochemistry of embodiment 1 transforms gas phase intermediate product infrared spectrogram.
Fig. 4 is that the yellow jacket timber thermochemistry of embodiment 2 transforms gas phase intermediate product total ions chromatogram.
1-thermochemical reactor, 2-cyclone separator, 3-coarse filter, 4-accurate filter, 5-T-valve, 6-micrometering valve, 7-well heater, 8-six-way valve injector, 9-analytical instrument, 10-electrical tar precipitator, 11-collection charcoal case, 12-six-way valve interface holes, 13-quantitatively encircle, the 14-connecting pipeline.
Embodiment
Below by embodiment, the present invention is further described.
Wherein, the device that uses in the online detection of biological matter thermal chemical reaction gas phase intermediate product method among the embodiment 1,2 as shown in Figure 1, described device comprises: thermochemical reactor 1, cyclone separator 2, coarse filter 3, accurate filter 4, T-valve 5, micrometering valve 6, six-way valve injector 7, electrical tar precipitator 8 and collection charcoal case 9.
Wherein the bottom of thermochemical reactor 1 is provided with charging aperture, and the top outlet of thermochemical reactor 1 is connected with the entrance of cyclone separator 2; The lower part outlet of cyclone separator 2 links to each other with collection charcoal case 11, the top outlet of cyclone separator 2 is connected with coarse filter 3 one ends, coarse filter 3 other ends are connected with electrical tar precipitator 10 entrances, electrical tar precipitator 10 outlets are connected with accurate filter 4 one ends, accurate filter 4 other ends are connected with T-valve 5 one ends, change the flow direction by T-valve 5, the other end of T-valve 5 is connected with micrometering valve 6 one ends, the other end of micrometering valve 6 is connected with an end of six-way valve injector 8, and the other end of six-way valve injector 8 is connected with analytical instrument 9; Pass through pipeline UNICOM between each device; Cyclone separator 2, coarse filter 3, electrical tar precipitator 10 and accurate filter 4 are all put with companion's hot charging.
Between T-valve 5 and six-way valve injector 8, well heater 7 is housed also.
As shown in Figure 2, on six-way valve injector 8, be provided with along clockwise direction six interface holes 12 of a～f, between f and c, be connected with quantitative ring 13; Described quantitative ring 13 is the pipeline of 5 μ L～20 μ L for volume quantitative;
Under the sampling state of Fig. 2 (A), af, bc, the connection of ed section become UNICOM's pipeline, and the gas phase intermediate product enters from a hole, successively through af UNICOM pipeline, quantitatively encircle 13, behind the cb UNICOM pipeline, discharge from the b hole, make in the quantitative ring 13 to be full of the gas phase intermediate product, finish sampling; Carrier gas enters from the e hole, enters analytical instrument 9 through ed UNICOM pipeline;
Under the sample introduction state of Fig. 2 (B), ab, cd, the connection of ef section become UNICOM's pipeline, and the gas phase intermediate product enters from a hole, discharges from the b hole; Carrier gas enters from the e hole, successively through ef UNICOM pipeline, quantitatively encircle 13, behind the cd UNICOM pipeline, the gas phase intermediate product that quantitatively encircles in 13 sent into analytical instrument 9, finish sample introduction.
Embodiment 1
A kind of method of online detection of biological matter thermal chemical reaction gas phase intermediate product, described method step is as follows:
Step 1, biomass material thermal chemical reaction
Biomass material is inputted in the thermochemical reactor 1, made raw material carry out the pyrolysis charring reaction, generate the gas phase intermediate product with the solid particle charcoal;
Wherein, biomass material is the yellow jacket wood particle, granularity≤2mm; Water cut is 5～12%; Feed rate is 1kg/h, and heating rate is 10 ℃/min, and temperature of reaction is 350 ℃;
Step 2, cyclonic separation
To carry out cyclone dust removal in the gas phase intermediate product input cyclone separator 2 with the solid particle charcoal;
Wherein, the gas velocity of cyclone separator 2 entrances is 13m/s, and cyclone separator 2 pressure drop scopes are 0.45kPa, the temperature in the cyclone separator 2 and the temperature difference of gas phase intermediate product≤and 5 ℃, cyclone separator 2 solid dust removal rates can reach more than 90%;
Step 3, coarse filtration
In the input of the gas phase intermediate product after cyclone dust removal coarse filter 3, further remove the solid impurity that contains in the gas phase intermediate product;
Wherein, the filter aperture in the coarse filter 3 is 6 μ m～8 μ m, the temperature in the coarse filter 3 and the temperature difference of gas phase intermediate product≤and 5 ℃; Through after the coarse filtration, the total solid dust removal rate of gas phase intermediate product can reach more than 99%;
Step 4, electrically trapped tar oil
In the input of the gas phase intermediate product after coarse filtration electrical tar precipitator 10, remove the tar base polymer impurity that contains in the gas phase intermediate product;
Wherein, the residence time of gas phase intermediate product in electrical tar precipitator 10 is 2s～3.5s, the temperature in the electrical tar precipitator 10 and the temperature difference of gas phase intermediate product≤and 5 ℃;
Step 5, secondary filter
To carry out secondary filter in the gas phase intermediate product input accurate filter 4 through electrical tar precipitator 10;
Wherein, the filter aperture is 0.8 μ m～2 μ m, the temperature in the accurate filter 4 and the temperature difference of gas phase intermediate product≤and 5 ℃, after electric fishing decoking and secondary filter, the dust removal rate of gas phase intermediate product can reach more than 99.99%;
Step 6, the sampling of gas phase intermediate product
Because the pyrolysis carbonation reaction temperature is 350 ℃, therefore needn't heater 7; After 5 changes flow to through T-valve with the gas phase intermediate product after the secondary filter, by micrometering valve 6 adjustments of gas pressure be＜0.6MPa, in gas phase intermediate product input six-way valve injector 8, take a sample by the quantitative ring 13 among Fig. 2 (A), the primary sample amount is 10 μ L, again six-way valve injector 8 is switched to the state among Fig. 2 (B), under the carrier gas effect, the gas phase intermediate product of sampling is sent in Fourier's infrared spectrometric analyzer and detected; Described carrier gas is that purity is 99.9999% high pure nitrogen.
The Infrared spectroscopy test findings of gas phase intermediate product product is seen Fig. 3, and gas phase intermediate product functional group distributes as shown in table 1.
Table .1 yellow jacket timber gas phase intermediate product main functional group
| Wave number/(cm -1) | Functional group |
| 3578 | The O-H stretching vibration |
| 2928 | The C-H stretching vibration |
| 2826 | The C-H stretching vibration |
| 2357 | The C-O stretching vibration |
| 2180 | The C-O stretching vibration |
| 1743 | C=O stretching vibration, C-H in-plane bending vibration |
| 1099 | The C-O-C stretching vibration |
| 669 | The C-C skeletal vibration |
Can be found out by Fig. 3 and table 1, with wave number 3578cm
-1For representing the peak very strong O-H stretching vibration peak is arranged, corresponding to the large peak of water vapor, illustrate that in this stage weightlessness mainly be due to free water and water of constitution are separated out; 2357cm
-1The place is CO corresponding to the C=O stretching vibration
2Characteristic peak; 2180cm
-1The place is the characteristic peak of CO corresponding to the C-O stretching vibration; 2928cm
-1, 2826cm
-1Two absorption peaks represent C-H(methyl, ethyl) stretching vibration, be the characteristic peak of alkane functional group; 1743cm
-1The peak represents the two key stretching vibrations of carbonyl C=O and C-H in-plane bending vibration, and showing has aldehydes and acid compounds in the gas phase intermediate product; 1099cm
-1The C-O-C of place stretching vibration, showing has ester class and alcohols in the gas phase intermediate product; 669cm
-1The place is corresponding to the C-C stretching vibration.
Embodiment 2
A kind of method of online detection of biological matter thermal chemical reaction gas phase intermediate product, described method step is as follows:
Step 1, biomass material thermal chemical reaction
Biomass material is inputted in the thermochemical reactor 1, made raw material carry out the pyrolysis liquefaction reaction, generate the gas phase intermediate product with the solid particle charcoal;
Wherein, biomass material is the yellow jacket wood particle, granularity≤2mm; Water cut is 5～12%; Feed rate is 1kg/h, and heating rate is 20 ℃/min, and temperature of reaction is 600 ℃;
Step 2, cyclonic separation
To carry out cyclone dust removal in the gas phase intermediate product input cyclone separator 2 with the solid particle charcoal;
Wherein, the gas velocity of cyclone separator 2 entrances is 18m/s, and cyclone separator 2 pressure drop scopes are 0.60kPa, the temperature in the cyclone separator 2 and the temperature difference of gas phase intermediate product≤and 5 ℃, cyclone separator 2 solid dust removal rates can reach more than 90%;
Step 3～step 5 is identical with embodiment 1.
Step 6, the sampling of gas phase intermediate product
After 5 changes flow to through T-valve with the gas phase intermediate product after the secondary filter, by micrometering valve 6 adjustments of gas pressure be＜0.6MPa, after the gas phase intermediate product heated by well heater 7, in the input six-way valve injector 8, take a sample by the quantitative ring 13 among Fig. 2 (A), the primary sample amount is 15 μ L, again six-way valve injector 8 is switched to the state among Fig. 2 (B), under the carrier gas effect, the gas phase intermediate product of sampling is sent in the gas chromatography-mass spectrography analyser and detected;
Wherein, the temperature of well heater 7 is 200～350 ℃ and all can; Described carrier gas is that purity is 99.9999% high pure nitrogen.
Testing result is seen Fig. 4, and gas phase intermediate product main compound composition relative content sees Table 2.
Table 2 yellow jacket timber gas phase intermediate product main compound composition relative content
By Fig. 4 and table 2 as can be known, the gas phase intermediate product identifies 30 kinds of compounds altogether, be mainly the organic compound of oxygen-containing functional group, comprise acids (19.29%), aldehydes (15.14%), ester class (9.97%), ketone (9.00%), carbohydrate (8.59%), phenols (5.29%), alcohols (3.63%) etc., main product has acetic acid, 1,6-acid anhydride-B-D-pyrans (type) glucose, pyroracemic aldehyde, methyl acetate, oxyacetone etc.
In sum, more than be preferred embodiment of the present invention only, be not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the method for an online detection of biological matter thermal chemical reaction gas phase intermediate product, it is characterized in that: described method step is as follows:
Step 1, biomass material thermal chemical reaction
Make biomass material carry out pyrolysis charring, liquefaction or gasification reaction, generate the gas phase intermediate product; Granularity≤the 2mm of biomass material; Water cut is 5～12%; Temperature of reaction is 200～800 ℃;
Step 2, cyclonic separation
To carry out cyclone dust removal with the gas phase intermediate product of solid particle charcoal; Cyclone dust removal is carried out in cyclone separator, the gas velocity of cyclone inlet is 10～20m/s, cyclone separator pressure drop scope is 0.40～0.65kPa, and cyclone separator is put with companion's hot charging, makes the temperature difference of temperature in the cyclone separator and gas phase intermediate product≤5 ℃;
Step 3, coarse filtration
Filter by the gas phase intermediate product of coarse filter after with cyclone dust removal, further remove the solid impurity that contains in the gas phase intermediate product, the coarse filtration aperture is 6 μ m～8 μ m; Coarse filter is put with companion's hot charging, makes the temperature difference of temperature in the coarse filter and gas phase intermediate product≤5 ℃;
Step 4, electrically trapped tar oil
Remove the tar base polymer impurity that contains in the gas phase intermediate product after the coarse filtration by electrical tar precipitator; The residence time of gas phase intermediate product in electrical tar precipitator is 2s～3.5s, and electrical tar precipitator is put with companion's hot charging, makes the temperature difference of temperature in the electrical tar precipitator and gas phase intermediate product≤5 ℃;
Step 5, secondary filter
By accurate filter, will carry out secondary filter through the gas phase intermediate product of electrical tar precipitator, the secondary filter aperture is 0.8 μ m～2 μ m; Accurate filter is put with companion's hot charging, makes the temperature difference of temperature in the accurate filter and gas phase intermediate product≤5 ℃;
Step 6, the sampling of gas phase intermediate product
Gas phase intermediate product after the secondary filter is transferred to pressure is＜0.6MPa, after the gas phase intermediate product heated by well heater, take a sample in the input six-way valve injector, under the carrier gas effect, the gas phase intermediate product of sampling sent in the analytical instrument and detect; Described six-way valve injector primary sample amount is 5 μ L～20 μ L, and the temperature of well heater is 200～350 ℃, and described carrier gas is that purity is 99.9999% high pure nitrogen.
2. the device of an online detection of biological matter thermal chemical reaction gas phase intermediate product, the method that is used for online detection of biological matter thermal chemical reaction gas phase intermediate product claimed in claim 1, it is characterized in that described device comprises: thermochemical reactor (1), cyclone separator (2), coarse filter (3), accurate filter (4), T-valve (5), micrometering valve (6), six-way valve injector (7), electrical tar precipitator (8) and the first collection charcoal case (9);
Wherein the bottom of thermochemical reactor (1) is provided with charging aperture, and the top outlet of thermochemical reactor (1) is connected with the entrance of cyclone separator (2); The lower part outlet of cyclone separator (2) links to each other with the second collection charcoal case (11), and cyclone separator (2), coarse filter (3), electrical tar precipitator (10), accurate filter (4), T-valve (5), micrometering valve (6) and six-way valve injector (8) are linked in sequence; Pass through pipeline UNICOM between each device; Described device also is equipped with well heater (7) between T-valve (5) and six-way valve injector (8).
3. the device of a kind of online detection of biological matter thermal chemical reaction gas phase intermediate product according to claim 2, it is characterized in that: on six-way valve injector (8), be provided with along clockwise direction six interface holes of a～f, be connected with quantitative ring (13) between f and c, described quantitative ring (13) is the pipeline of 5 μ L～20 μ L for volume quantitative;
Under the sampling state, af, bc, the connection of ed section become UNICOM's pipeline, and the gas phase intermediate product enters from a hole, successively through behind af UNICOM pipeline, quantitative ring (13), the cb UNICOM pipeline, discharge from the b hole, make in the quantitative ring (13) to be full of the gas phase intermediate product, finish sampling; Carrier gas enters from the e hole, enters analytical instrument through ed UNICOM pipeline;
Under the sample introduction state, ab, cd, the connection of ef section become UNICOM's pipeline, and the gas phase intermediate product enters from a hole, discharges from the b hole; Carrier gas enters from the e hole, and through behind ef UNICOM pipeline, quantitative ring (13), the cd UNICOM pipeline, the gas phase intermediate product that will quantitatively encircle in (13) is sent into analytical instrument, finishes sample introduction successively.
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| CN104198675B (en) * | 2014-09-09 | 2016-08-24 | 中国科学院过程工程研究所 | Solid fuel thermal transition air-liquid product composition on-line measuring device and method |
| CN105784889B (en) * | 2014-12-25 | 2018-11-30 | 中国科学院广州能源研究所 | The quick analysis system and method for thick gas tar oil content |
| CN104713867B (en) * | 2015-01-30 | 2017-07-11 | 中国科学院广州能源研究所 | A kind of pretreatment unit and its application method for the online Laser Roman spectroscopic analysis of composition instrument of biological flue gas |
| WO2019179887A1 (en) * | 2018-03-20 | 2019-09-26 | Hte Gmbh The High Throughput Experimentation Company | Method for analysing process streams |
| CN115307949B (en) * | 2022-10-11 | 2023-01-24 | 巨野锦晨精细化工有限公司 | Monitoring and processing system for key parameters of chemical equipment |
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