Alkali metal removal from low rank coal extracts using ion exchange
Removal of alkali metal (Na) ion from coal dissolved organic solvent was attempted using inorganic ion exchangers. Inorganic ion exchangers of metal phosphate type were prepared and their performances were tested in a batch type autoclave at the temperature range of 200 to 400 ℃. All of the metal phosphates showed excellent Na + ion removal efficiency. Their removal efficiencies were around 100％ at 350 ℃. However, removal efficiency of H-Y zeolite decreased to 50％ at over 350 ℃. Metal phosphate ion exchangers are expected to be excellent materials for removing alkali metal ion from clean coal producing process.
dealkalization metal ion removal ion exchange inorganic ion exchanger
Kwang B.Yi Ji-Won Ha Chang H.Ko Jong-Ho Park Si H.Lee Jong-Nam Kim
Korean Institute of Energy Research, 71-2 Jang-Dong, Yuseong-Gu, Daejeon, 305-343, Korea
国际会议
The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)
北京
英文
2007-10-14（万方平台首次上网日期，不代表论文的发表时间）