Oxidation And Absorption Performance Of New Reverse Jet Nozzle

In the industrial application of removing sulfide gas technology common process is long and difficult to control,small elasticity of operation,high investment costs disadvantage,these processes exist desulfurizer solvent formulation complexity,use of short cycle,more side effects,poor stability.In this paper to solve above problems and combining the theory and practice of research at home and abroad,application a simple composition of desulfurizer,cheap,simple operating condition,safe,non-toxic inorganic iron desulfurization method of removing Fe2(SO4)3 solution.This process security and stability,less side effects,no pollution to the environment,desulfurization can be regenerated by air oxidation,desulfurization solution can also be recycled,but its drawback is regeneration rate is very slow.In this paper,using a new type of reverse jet nozzle to remove air absorption and regeneration of sulfur oxide fumes discussion,with air containing carbon dioxide gas to simulate flue gas containing sulfur compounds,all the experiments at normal temperature and pressure,catalyst-free conditions,finding the sorbent regeneration and the absorption of sulfur-containing flue gas of industrial processes that can be referenced,meanwhile summary nozzles at different gas-liquid flow stream discharge pattern.In this paper,the experiment is divided into four parts: Fe2+ air oxidation experiments and orthogonal test,gas absorption experiments and orthogonal test.According to Fe2+ air oxidation results,the optimum operating conditions for the oxidation process is:at normal temperature and pressure,the initial solution with constraints 160 liter,PH value of 1.3-1.6,c(Fe2+)is 0.3-0.4 mol/L,air flow rate of approximately is 9.83 m/s,the axis flow rate is 3.39 m/s the tangential flow rate is 2.55m/s,and according to the orthogonal test,the size of factors in the oxidation is liquid axial flow> air flow> initial concentration of ferrous ions> liquid tangential flow.According to the absorption experiment,the optimum operating conditions for the absorption is: at normal temperature and pressure,air flow rate of approximately is 5.92m/s,the initial concentration of caustic soda is 0.5-1.0 mol/L,the volume fraction of carbon dioxide is 0.6%-1.0%,the axis flow rate is 3.39 m/s,the tangential flow rate is2.55 m/s,and according to the orthogonal test,the size of factors in the absorption is:liquid tangential flow> nano concentration> carbon dioxide accounts for air volume fraction> axial flow of liquid.Last,the best appropriate conditions for the oxygen absorption process is: in the oxidation,air flow is 9.83 m/s,c(Fe2+)is 0.3-0.4mol/L,the axis flow is 3.96 m/s,the tangential flow is 3.68 m/s,in the absorption,the exhaust gas flow rate is about5.92 m/s,the sulfide-containing volume fraction is not greater than about 1%,the axial liquid flow rate is 3.39 m/s,tangential flow rate is 2.55 m/s.If the removal of sulfur compounds found substandard,using multiple nozzles operating in oxidation process apparatus,increasing the concentration of ferric ions,thereby improving removal efficiency.