burning point
3.Abstract: Establishment of the macro dynamic mathematical models for coked zeolite catalyst coke burning regeneration was discussed from an engineering point of view.Based on the modified particle-pellet model,dynamic mathematical equations for porous and nonporous catalyst coke burning regeneration were deduced,supplying a theoretical basis for computer simulation of coked zeolite catalyst regeneration.
8.Select HCFC134a as casting agent instead of Freon by the environment point and its fine consistent to trichloroethane, no burning gas character. The right package and inner pressure can influence the film effect and sensitivity of the developer finally. Through contrast test, we confirmed the composition proportion of the developer.
9.The air-powered machine of chopper because of having structure in brief, maintenance convenient, the cost was low and otherwise advantages to get an extensive application, but often took place breakdown on control circuit of air providing in actually running, causing the contact point of relay to glue together and burning it to bad, the air pressure getting unusually state and the like other serious obstacle.
10.It introduces the experiment for changing into sulfur for the sulfuric acid production in 400 kt/a sulfuric acid plant based on pyrite and points out the key point of the technology is to control the burning temperature in the fluidized bed roaster,the fluidized bed temperature for ensuring complete burning of the sulfur and eliminating sublimed sulfur,so ω(O 2) in the outlet gas of the fluidized bed roaster shall be controlled at 3% to 5%.
