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A New Reactor's Structure Design And The Simulation Of CuO/Al2O3 Catalyst-sorbents Desulfurization Denitrification Of Flue Gas And Regeneration

Posted on:2010-05-30Degree:MasterType:Thesis
Country:ChinaCandidate:T LiFull Text:PDF
GTID:2121360272470731Subject:Thermal Engineering
Abstract/Summary:PDF Full Text Request
The dry flue gas desulfurization/denitrifcation technique has caught everyone's eyes, in respect that its simple technique and manipulation, low investment and operation maintains fee, easy disposal of the desulphurization/denitrifcation product, no secondary polluting. At present, many technology of desulphurization in china are imported from other countries, and have more expensive. The combined SO2/NOx removal technology is illuminated with a widened road of application.Because of high sulful content, no pulverization, simultaneously removing SO2 and NOx from flue gases, activated and easy regenerated, CUO/Al2O3 catalyst-sorbents system is a hostpot of research in the domeatic and the foreign. In other countries though the research and development of the copper oxide process has been becoming mature,its commercialization has a long way to go.In China,we are just to start the research on this technology,hence,to study on the processes in which how does CuO take effectiveness on the desulfurization,denitration and regeneration processes in detailed and quantitative description,and to solve the problems during this technology being applied for the commercialized production,are becoming a request of exigency in original intellectual property creation.Put forward a new idea in this paper that make the CUO/Al2O3 FGD reactor using ceramic carrier, and on the basis technology of CUO/Al2O3 Catalyst-sorbents Desulfurization Denitrification of Flue Gas and Regeneration, analysis the strengths and weaknesses of flue gas desulfurization/denitrifcation adsorption reactor in the domeatic and the foreign, Design a new type of rotary that desulfurization/denitrification integration and renewable, the reactor use districting design, and resolve the sealing problem. Use Fluent to imitate flue gas of desulfurization/denitrifcation and regeneration. In the first depart of this paper, numerical simulation was done for desulfurization process in micro-channel, influence of relational factors on desulfurization/denitrification effect was studied by the numbers: Reactor tube length, diameter, flow rate and gas import concentrations. Through the simulation come to the best of desulfurization denitration diameter, length and flow rate, as well as the reactor export gas mass fraction of the time curve, the removal of identify areas and areas of renewable point of view. And based on the size of the overall to design the rotary reactor of desulfurization/denitrification. The results showed that: The reactor control unit to simulate and analyze the results obtained in diameter to 1mm, tube long 50mm, the initial temperature of 700K, import gas flow rate 3 m/s, ammonia nitrogen ratio of 0.9, reactor for catalytic effects of the best adsorption parameters, the removal rate of up to 90%; Regeneration of numerical simulation and analysis of the results obtained in diameter to lmm, a long tube 50mm, renewable temperature 673K, renewable sources of gas concentration 0.08, the entrance rate for 7 m/s, its exports of renewable sources of SO2 reached the mass fraction of 0.5764. Rotary new reactor design of the structure of the district used effectively to avoid leakage of gas, reduce accidents and compact. The advantage: in the desulfurization denitration while being able to carry out a catalyst for the regeneration cycle, so that the running costs, and the higher the rate of removal can be achieved very good demand.
Keywords/Search Tags:FGD, aluminum copper, regeneration, numerical simulation
PDF Full Text Request
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