公开(公告)号：US4307067A

公开(公告)日：1981-12-22

申请号：US85327

申请日：1979-10-16

申请人： Taichi Tagawa ,  Jinji Tani ,  Shingo Tominaga ,  Shigeru Suzuki ,  Shigeru Kikuchi

发明人： Taichi Tagawa ,  Jinji Tani ,  Shingo Tominaga ,  Shigeru Suzuki ,  Shigeru Kikuchi

IPC分类号： B01D53/38 ,  B01D53/77 ,  B01D53/86 ,  B01D53/36 ,  C01B17/16 ,  C01C1/00

CPC分类号： B01D53/86

摘要： A process for deodorizing an exhaust gas containing at least one smelly material selected from the group consisting of acidic smelly materials, such as hydrogen sulfide, mecaptans, dimethyl sulfide, dimethyl disulfide and the like; basic smelly materials, such as ammonia, amines and the like; and smelly organic material, such as ketones, alcohols, aldehydes, carboxylic acids and the like is disclosed. Vapor-liquid contact of the exhaust gas with a sodium hypochlorite solution is caused in the presence of a catalyst which is a mixture of nickel peroxide and at least one carrier. In the presence of the catalyst, placed in a column, sodium hypochlorite solution falling from the upper portion of the column contacts exhaust gas rising from the lower portion of the column to promote catalyst oxidation reaction. The amount of sodium hypochlorite solution fed into the upper portion of column is adjusted so that the concentration of the sodium hypochlorite solution in the bottom of column is maintained at such a desired value that optimum oxidation reaction occurs, and sodium hydroxide solution is added to the sodium hypochlorite solution so that pH of the sodium hypochlorite solution in the bottom of the column is kept within the range of from 7.5 to 11.0.

摘要翻译： 一种含有至少一种选自酸性臭味物质如硫化氢，硫化物，二甲基硫醚，二甲基二硫化物等的臭气物质的废气除臭方法; 碱性臭味物质，如氨，胺等; 并且公开了诸如酮，醇，醛，羧酸等有害的有机物质。 在作为过氧化镍和至少一种载体的混合物的催化剂存在下引起废气与次氯酸钠溶液的气液接触。 在催化剂的存在下，放置在柱中，从柱的上部落下的次氯酸钠溶液接触从柱的下部上升的排气，以促进催化剂氧化反应。 调节进料到塔上部的次氯酸钠溶液的量，使得塔底部的次氯酸钠溶液的浓度保持在发生最佳氧化反应的期望值，并将氢氧化钠溶液加入到 次氯酸钠溶液使柱底部的次氯酸钠溶液的pH值保持在7.5〜11.0的范围内。