CN101898158A - Non-flowing type catalytic oxidation combustion system - Google Patents
Non-flowing type catalytic oxidation combustion system Download PDFInfo
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- CN101898158A CN101898158A CN 200910051891 CN200910051891A CN101898158A CN 101898158 A CN101898158 A CN 101898158A CN 200910051891 CN200910051891 CN 200910051891 CN 200910051891 A CN200910051891 A CN 200910051891A CN 101898158 A CN101898158 A CN 101898158A
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- oxidation
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Abstract
The invention discloses a non-flowing type catalytic oxidation combustion system, in particular to a low-temperature non-flowing type (sealing) oxidation system for an on-line total organic carbon (TOC) analyzer. The system comprises an oxidation tube (high-grade quartz tube), an accelerant, a bowel-shaped ceramic wool, an upper sealing plug water sample injection pipe and a lower sealing plug oxidation product effuser. The low-temperature oxidation (640 DEG C) accelerant can be used for oxidizing and analyzing organic matters (including sea water) in water. The bowel-shaped ceramic wool is placed in the oxidation tube and used as a carrier oxidized by the analyzing water sample. The analyzed water sample is completely oxidized in a low-temperature sealing system.
Description
Technical field:
This patent is specifically designed to the catalytic oxidation non-dispersive infrared method and measures in the online analytical instrument of water quality low concentration TOC.Belong to technical field of analytical instruments.
Technical background:
The TOC analyzer during organic matter, has the method for multiple oxidation in measuring water.Generally all adopt high temperature (＞950 ℃) firing method, can be with organic matter complete oxidation in the water.But the performance of instrument such as service life, stability etc. can be subjected to the influence of high temperature.The infrared method of oxidation product detects, and is subjected to the restriction of detection sensitivity, detectability.Patent of the present invention is used a kind of catalyst of anti-halogen, under non-negotiable (sealing) state, on the carrier of ceramic wool bed, in so a kind of system, can make organic matter complete oxidation in the time of 640 ℃ in the water, and very high sensitivity and detectability are arranged under infrared detector.The use of this patent on the TOC instrument can reduce oxidizing temperature, and interference that again can anti-halogen improves instrument detecting sensitivity and measurement category.
Patent content:
1, a kind of metallic catalyst with cellular structure ceramic carrier can be resisted the interference of halogen to analyzing in the water body, and oxidizing temperature is in the time of 640 ℃, and organic matter can complete oxidation in the water body.
2, a kind of non-current (sealing) catalytic oxidation system, the organic matter of sample water that makes quantitative injection is under non-negotiable (sealing) state, on the carrier of ceramic wool bed, form a kind of local first valve state, oxidation product forms local concentration than the high hundreds of times of flow regime, to improve the sensitivity that detects.
3, in oxidation tube, the bowl-type ceramic wool on the top of catalyst becomes the core of non-current oxidative system, prevents that effectively the calcium magnesium salts material that injects water sample is splashed on the oxidation tube wall.Both protect catalyst and oxidation tube, improved the stability of analyzing again.
Technical scheme:
1, whole non-current (sealing) oxidative system is made up of five parts: oxidation tube (senior quartz ampoule), catalyst, bowl-type ceramic wool, top seal plug water sample ascending pipe and lower seal plug oxidation product flow out pipe.
2, oxidation tube keeps vertical and places.Earlier alumina balls are put into, then catalyst is placed on above the alumina balls, put into a certain amount of ceramic wool again.With specific purpose tool ceramic wool is dialled into bowl-type.
3, oxidation tube top is connected with the quantitative sample injection device, by the low discharge air-flow quantitative water sample is injected oxidation tube when sample introduction.Inject water sample and drop in gasification and complete oxidation on the bowl-type ceramic wool.
4, after water sample injects oxidation tube, magnetic valve will cut out the carrier gas stream in the pipe up and down automatically, make sample form the oxidation system of a sealing in oxidation tube.
5, through the oxidation of certain hour, magnetic valve is opened the carrier gas stream in the pipe up and down automatically, takes oxidation product to CO
2Measure in the detector.
6, whole oxidation tube vertically is placed in the combustion furnace.The oxidation furnace temperature is controlled at 640 ℃ by temperature controller.
Description of drawings: accompanying drawing is non-flowing type catalytic oxidation combustion system figure.
Claims (3)
1. metal solvent that makes organic matter low-temperature oxidation in the water, interference that can anti-halogen.It is cellular, can be in 640 ℃ of low temperature complete oxidation water organic matter.Organic matter in this catalyst energy Long-term analysis seawater.
2. one kind flows out non-current (sealing) catalytic oxidation system that pipe is formed by oxidation tube (senior quartz ampoule), catalyst, bowl-type ceramic wool, top seal plug water sample ascending pipe and lower seal plug oxidation product.This system can be used for the TOC analytical instrument.
3. in non-current (sealing) catalytic oxidation system, the bowl-type ceramic wool is housed, allows oxidized water sample drop on the bowl-type ceramic wool, as the carrier of water sample oxidation.Simultaneously can protect oxidation tube and catalyst not by calcium magnesium salts sputter residual in the water sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910051891 CN101898158A (en) | 2009-05-27 | 2009-05-27 | Non-flowing type catalytic oxidation combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910051891 CN101898158A (en) | 2009-05-27 | 2009-05-27 | Non-flowing type catalytic oxidation combustion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101898158A true CN101898158A (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910051891 Pending CN101898158A (en) | 2009-05-27 | 2009-05-27 | Non-flowing type catalytic oxidation combustion system |
Country Status (1)
| Country | Link |
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| CN (1) | CN101898158A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944454A (en) * | 2012-10-23 | 2013-02-27 | 杭州泰林生物技术设备有限公司 | Combustion furnace for total organic carbon determination |
-
2009
- 2009-05-27 CN CN 200910051891 patent/CN101898158A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944454A (en) * | 2012-10-23 | 2013-02-27 | 杭州泰林生物技术设备有限公司 | Combustion furnace for total organic carbon determination |
| CN102944454B (en) * | 2012-10-23 | 2016-02-10 | 浙江泰林生物技术股份有限公司 | Combustion furnace for total organic carbon determination |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101201 |