Exhaust gas treatment system, application and method
An exhaust gas treatment and exhaust gas technology, which is applied in combustion methods, climate sustainability, energy industry, etc., can solve the problems of high maintenance and repair rate, unstable continuous operation, easy blockage of pipelines, etc., with regenerative incineration method, and achieves low maintenance rate. , The effect of stable operation of the device and reduction of energy consumption
Inactive Publication Date: 2017-06-20
SHANGHAI INSTALLATION ENG GRP +1
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Problems solved by technology
[0004] The present invention aims to solve the problems of the prior art tail gas absorption method that the pipes are easy to be blocked, continuous operation is unstable, waste liquid needs to be processed later, and the heat storage incineration method has high maintenance and repair rate and is relatively dangerous. Tail gas treatment system, application and method that produce secondary pollution and impurities, are safe and reliable, and save energy
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Embodiment Construction
[0027] The present invention is further illustrated below by means of examples, but the present invention is not limited to the scope of the examples.
[0028] Such as figure 1 As shown, a tail gas treatment system includes a low-temperature heat exchanger 1, a high-temperature heat exchanger 2, a preheating device 3, a reactor 4, a waste heat recovery device 5 and a chimney 6;
[0029] The inlet of the cold flow end of the low temperature heat exchanger 1 is connected with the inlet of the tail gas, and the outlet of the cold flow end of the low temperature heat exchanger 1 is connected with the inlet of the cold flow end of the high temperature heat exchanger 2;
[0030] The outlet of the cold flow end of the high-temperature heat exchanger 2, the preheating device 3, the reactor 4, and the inlet of the hot flow end of the low-temperature heat exchanger 1 are connected in sequence;
[0031] The heat flow end of the high temperature heat exchanger 2 is arranged in parallel w...
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The invention discloses an exhaust gas treatment system, application and method. The exhaust gas treatment system comprises a low-temperature heat exchanger, a high-temperature heat exchanger, a preheating device, a reactor, a waste heat recovery device and a chimney. According to the exhaust gas treatment system, application and method, the efficient energy-saving design is adopted, the energy consumption is lowered effectively, heat energy is fully recovered, energy self-utilization is achieved, and the by-product heat is achieved; the reaction temperature is low, and the device is stable to operate, free of frequent operation, low in maintenance rate, safer and more reliable; and the treated products are free of impurities, corrosion to and blocking of a pipeline are avoided, the product mainly comprises CO2 and H2O, and the secondary pollution is avoided.
Description
technical field [0001] The invention relates to a tail gas treatment system, application and method. Background technique [0002] Phthalic anhydride is an important intermediate product in the chemical industry chain. The main downstream products include plasticizers, unsaturated resins, alkyd resins, and paint dyes. During the production of phthalic anhydride, a large amount of tail gas will be generated. The tail gas has complex components and contains a large amount of organic matter. Reasonable treatment and utilization can not only solve environmental protection problems, but also produce certain additional benefits. The output of phthalic anhydride in my country ranks first in the world. With the increasingly severe environmental protection situation, the treatment of phthalic anhydride tail gas is the direction of continuous research and progress. [0003] At present, my country's treatment of phthalic anhydride tail gas mainly adopts two schemes: tail gas absorption ...
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IPC IPC(8): F23G7/06F23G5/50
CPCF23G5/50F23G7/066F23G2207/00Y02P80/15
Inventor 徐航毛向荣陆欢军
Owner SHANGHAI INSTALLATION ENG GRP