Research on Carbon Cleaning Used by Alkaline Binary Nitrate Molten Salt Based on Remanufacture Cleaning

Carbon deposition has complicated composition and is with a large number of particles, it is very difficult to be removed in the process of remanufacture cleaning. The mixed salt of potassium nitrate and sodium nitrite is used to clean the carbon deposition as cleaning medium, weighing method was used to quantify the effect of cleaning. At the same temperature and washing time, the best cleaning process was sought by changing the formula of the molten salt. Experimental results show that it is more appropriate when the mass fraction of NaOH is in 30%, in this case, the cleaning quality and economic benefit are the best.