Quartz reaction kettle device for in-situ online monitoring of low-temperature high-pressure reaction
A reaction in situ, low temperature and high pressure technology, applied in sampling devices, preparation of test samples, Raman scattering, etc., can solve the problem of online observation and analysis of intermediate products that cannot change in phase state, invisible reaction process, and large consumption of raw materials, etc. problem, to achieve the effect of simple structure, avoiding catalytic effect, and small consumption
Pending Publication Date: 2020-09-22
ZHEJIANG UNIV OF TECH
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Problems solved by technology
Most of the existing reactors are stainless steel reactors or tubular reactors, which have the advantages of large volume, complex structure, inconvenient operation, low mass transfer efficiency, high energy consumption, large raw material consumption, and invisible reaction process. High maintenance costs and other shortcomings, and traditional research methods can only analyze the final product, and cannot conduct online observation and analysis of the phase change of the reaction and intermediate products, and cannot provide sufficient scientific basis for exploring the reaction mechanism
Method used
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Embodiment 1
[0042] In Example 1, the main body of the quartz reactor was used to study the reaction of ozone and chlorobenzene under low temperature and high pressure conditions.
[0043] Such as figure 1 As shown, the main body of a quartz reactor is circular, with an outer diameter of 4.0 mm, an inner diameter of 2.0 mm, and a length of 50 mm. The added reaction substances are chlorobenzene and ozone.
[0044] Such as figure 2 Shown, a kind of manufacturing equipment of quartz reactor. First, use a grinding wheel to cut a quartz tube about 50 mm long (2mmID, 4mmOD), turn on the high-purity hydrogen generator, and after electrolyzing enough hydrogen-oxygen mixed gas, turn on the welding torch and ignite it, and seal one end of the quartz tube with a hydrogen-oxygen flame. The welding sealing effect is ready for use after passing the test. Use a micro-sampling needle, put a certain amount of chlorobenzene into the quartz tube according to the experimental design, and centrifuge at a h...
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The invention discloses a quartz reaction kettle device for in-situ online monitoring of low-temperature high-pressure reaction. The quartz reaction kettle device comprises a quartz reaction kettle main body, a low-temperature device system and a monitoring device, wherein the low-temperature device system comprises a liquid nitrogen bottle, a temperature control system, a seamless copper pipe anda ceramic shell, a visible sample groove is formed in the ceramic shell, the temperature control system is in circuit connection with a low-temperature thermocouple, and the low-temperature thermocouple is used for measuring the environment temperature in the visible sample groove and feeding back to the temperature control system, the quartz reaction kettle main body is arranged in the visible sample tank, so the low-temperature device system is used for providing low-temperature conditions required by the quartz reaction kettle main body, the monitoring device is used for carrying out in-situ online monitoring on a part, positioned in the visible sample groove, of the quartz reaction kettle main body. The quartz reaction kettle device is advantaged in that the quartz reaction kettle main body is small in size, a main body material is the quartz tube, an inner wall and an outer wall of the quartz tube are smooth and transparent, the state change of the material in the quartz reactionkettle can be observed after reaction, and in-situ detection analysis can be carried out by combining Raman spectrum and the like.
Description
technical field [0001] The application relates to a quartz reactor device for in-situ on-line monitoring of low temperature and high pressure reactions. Background technique [0002] In the field of chemical industry, there are many problems such as too violent reaction, many side reactions, and easy decomposition of products under normal temperature and pressure conditions. Therefore, it needs to be carried out in a low temperature environment, sometimes in an ultra-low temperature environment. Most of the existing reactors are stainless steel reactors or tubular reactors, which have the advantages of large volume, complex structure, inconvenient operation, low mass transfer efficiency, high energy consumption, large raw material consumption, and invisible reaction process. There are disadvantages such as high maintenance costs, and traditional research methods can only analyze the final product, and cannot conduct online observation and analysis of the phase change of the ...
Claims
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Patent Timeline
Login to view more IPC IPC(8): G01N21/65G01N1/14G01N1/42G01N1/44
CPCG01N21/65G01N1/14G01N1/42G01N1/44Y02E60/36
Inventor 潘志彦张颖傅清云
Owner ZHEJIANG UNIV OF TECH
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