公开(公告)号：US5057294A

公开(公告)日：1991-10-15

申请号：US421617

申请日：1989-10-13

申请人： Atul C. Sheth ,  Jeffrey K. Holt ,  Darryll G. Rasnake ,  Robert L. Solomon ,  Gregory L. Wilson ,  Howard R. Herrigel

发明人： Atul C. Sheth ,  Jeffrey K. Holt ,  Darryll G. Rasnake ,  Robert L. Solomon ,  Gregory L. Wilson ,  Howard R. Herrigel

IPC分类号： H02K44/08

CPC分类号： H02K44/08

摘要： The specification discloses a spent seed recovery and regeneration process for an MHM power plant employing an alkali metal salt seed material such as potassium salt wherein the spent potassium seed in the form of potassium sulfate is collected from the flue gas and reacted with calcium hydroxide and carbon monoxide in an aqueous solution to cause the formation of calcium sulfate and potassium formate. The pH of the solution is adjusted to supress formation of formic acid and to promote precipitation of any dissolved calcium salts. The solution containing potassium formate is then employed to provide the potassium salt in the form of potassium formate or, optionally, by heating the potassium formate under oxidizing conditions to convert the potassium formate to potassium carbonate.

摘要翻译： 该说明书公开了使用碱金属盐种子材料如钾盐的MHM发电厂的废种子回收和再生方法，其中从烟道气中收集硫酸钾形式的废钾种子并与氢氧化钙和碳 一氧化碳在水溶液中引起硫酸钙和甲酸钾的形成。 调节溶液的pH以抑制甲酸的形成并促进任何溶解的钙盐的沉淀。 然后使用含有甲酸钾的溶液提供甲酸钾形式的钾盐，或任选地通过在氧化条件下加热甲酸钾将甲酸钾转化为碳酸钾。