| The pollution of volatile organic compounds (VOCs) is received increasing attention. The current technologies for controlling VOCs have associated with some problems. Pulse corona induced plasma discharge process (PCPP) is regarded as a promising technology to control these pollutants. In China, the characteristics of the technology as well as the experimental researches on VOCs treatment have been studied since 1993 in Zhejiang University, topics discussed including the main factors influencing on removal efficiency, the synergism with catalyst, the comparison of pulse power and AC(alternating current) power, the evaluation of packed reactor, the preliminary theoretical discussion, results show that PCPP has many advantages: high destruction efficiency, simply installed, high operation efficiency, low energy consumption, widely applicable, which are the base of the scale-up experiments.In this dissertation, the scale-up experiments of the decomposition of toluene by pulse corona discharge in wire-plate reactor were investigated systematically, at the same time, The experiments of the decomposition of refinery odors by this technology were also studied. A pulse power based on thyratron switch, Blumlein pulse forming network and pulsed transformer was adopted. The maximum output power of pulse voltage source and the maximal peak voltage are 1 kW and 100 kV, respectively. The experiments were conducted with a gas-flow rate of 4-16 m3 · h-1. The aim of the scale-up experiments were to solve the quantitative design and scale-up problem of the pulse corona process.The main content as well as the conclusion consists of the following six parts:1) The scale-up experiments of the decomposition of toluene by pulse corona discharge in wire-plate reactor were investigated. Different parameters which influenced on removal efficiency have been investigated, such as peak voltage, pulse frequency, inlet concentration of toluene, gas-flow rate. The results show that the removal efficiency is improved obviously when the peak field intensity is changed in the range of 9-12 kV · cm-1. The removal efficiency 88% is obtained when gas-flow rate, peak voltage, inlet concentration of toluene, pulse frequency are 4 m3 · h-1, 69kV, 1180 mg · m-3, 300pps respectively, the energy yield of toluene is about 16g · kWh-1. The main products of decomposition are CO2 and H2O, few of CO.2) The experiments of the decomposition of toluene by pulse corona discharge in three types of scale-up wire-plate reactors were investigated. The experiments were conducted with a gas-flow rate of 4 m3 · h-1. Effects of dielectric barrier and catalysis have been studied. The results show that the removal efficiency of three types of reactors(a: no dielectric barrier, b: ceramic plate barrier, c: ceramic plate barrier with catalyst) are 47% , 64%, 80% respectively when inlet concentration of toluene, gas-flow rate, peak voltage, pulse frequency are 5400 mg· m-3,4 m3· h-1, 69kV, 300pps respectively, the scale-up effect is not obviously. The energy yield relation of three types of reactors is that a less than b,b less than c, when the energy density is the same. The outlet concentration of ozone is decreased when the ceramic plate barrier. The electrical parameters such as sub-peak voltage, peak current, peak power, single pulse energy and total power, are improved when the ceramic plate barrier, in addition, the numbers of electrons one pulse producing and electron mean energy are also improved. The removal process could be enhanced when catalyst are impregnated on the ceramic plate.3) The experiments of the decomposition of refinery odors by pulse corona discharge inwire-plate reactor were investigated and the representative testing odors were sulfureted hydrogen, ammonia, ethanethiol and tri-methyl amine. The experiments were conducted with a gas-flow rate of 4-16 m3 h-1. Some parameters, such as peak voltage, pulse frequency, inlet concentration, gas-flow rate, background gas which influenced on removal efficiency, have been i...
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