Method for preparing active carbon materials SO#-[2] absorbent by medicament activation method

Abstract

The invention relates to a kind of activated carbon basal material, a sulfur dioxide absorption agent, which manufactured by the way of medicine activation. The specificity of the invention is the steps as follows: put the material containing carbon into the water solution of chemical agent, then proceed the chemical modification with pressurization and hydro heating in high pressure reactor caldron, and finally, it can be manufactured by the way of drying activation. The medicine agents that mentioned above are: oxydol (H2O2), sulfur acid (H2SO4), nitrided hydrogen (HNO3), hydrogen fluoride (HF), sodium hydroxide (NaOH), potassium hydroxide (KOH), KMnO4 and so on. The source of the carbon basal material such as carbocoal is wide and the cost of it is low; the manufactured absorption agent can be used as the boiler fuel, and has no secondary pollution; and what mentioned above are the feature of the invention. Furthermore, the invention can be used widely for environmental protection of the stack gases desulfurization and purifying in coal-burning power station, coal fired boiler, and coal fired kiln.

Description

technical field [0001] The invention relates to a preparation method of gas purification and desulfurization agent in coal-fired power plants, coal-fired boilers and coal-fired kilns and other flue gas desulfurization purification and environmental protection industries, more specifically, an activated carbon-based material SO 2 Sorbent preparation method. Background technique [0002] Coal accounts for 69% of my country's energy consumption structure. The massive combustion of coal has caused soot-type pollution to the atmosphere in the country. Especially since the 1980s, with the rapid development of my country's economy, the consumption of coal has increased day by day. SO 2 Emissions continue to grow, resulting in serious air pollution. According to statistics, in 1985 my country's SO 2 The emissions were 15.3 million tons, which increased to 23.7 million tons in 1995. In 2000, SO 2 Emissions were 25.9 million tons. Thanks to SO 2 A large amount of discharge, caus...

AI Technical Summary

Problems solved by technology

[0004] Removal of SO from flue gas by activated carbon-based materials such as activated semi-coke 2 The research on the research has been very active both at home and abroad. Li Wenhua of the Coal Chemical Institute of the General Academy of Coal Research in China, Liu Changjian of the Chemical Metallurgy Institute of the Chinese Academy of Sciences, etc., and Kenichi Gomi and Takeyong Komuro of Hitachi, Japan have done a lot of research work. Some results have been achieved, but they all use traditional activated carbon production methods (water or oxygen activation at high temperature) to modify semi-coke, resulting in limited modification of chemical properties, while large carbon loss (up to 40%) and high cost