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1. 发明公开

EP0245814A1 Cooling, dehumidifying, de-naphthenizing and detarring plant for coal distillation gases 失效
标题翻译：装置，用于冷却和湿度，石脑油和焦油的消除从煤蒸馏气体。
公开(公告)号：EP0245814A1
公开(公告)日：1987-11-19
申请号：EP87106786.4
申请日：1987-05-11
申请人： ITALIMPIANTI Società Italiana Impianti p.a. , ILVA S.p.A.
发明人： Proface, Emanuele , Pascale, Nicola
IPC分类号： C10K1/06
CPC分类号： C10K1/06
摘要： The process and respective plant are designed to process the gas distilled out of coal and exiting from coke-ovens (1), through a first cooling step down to 80-85°C, by means of water sprays, thus obtaining a partial condensation of tar and naphthalene which will be collected in a manifold-tank or header (3) together with the cooling water and steam condensate. Thereafter, the gas is separated from the condensed materials and is then further cooled in a water-spray tower (11) down to a temperature of 2-30°C to cause the total condensation of tar and almost total condensation of naphthalene and steam, thus purifying the gas from said materials. Naphthalene is removed from the cooling water and condensate flowing out of said tower (11) by absorbing it completely into the tar which is also contained in said water, by processing said water in a suitable decantation and flotation tank (18) where tar will settle down and naphthalene will float. Tar and naphthalene will be removed through suitable ducts (20,21) from the bottom and surface, respectively, and then introduced into a single piping (22) where they will contact with each other and tar will absorb naphthalene by dissolving it. Water from various sections of the plant will collect in a decanter (9) where the tar that has absorbed naphthalene settles down and is removed, whilst the purified water is re-cycled. Suitable provisions are utilized to promote and to accelerate to a maximum extent the absorption of naphthalene into the tar, during all the steps of the process.
摘要翻译：该方法和相应的计划设计为处理气体馏出煤并通过第一冷却步骤中从焦炭炉（1）离开向下至80-85℃，通过水喷雾的方式，从而获得的部分缩合焦油和萘whichwill在歧管箱或头（3）与冷却水和蒸汽冷凝液一起被收集。那里之后，将气体从冷凝的材料分离，然后在水进一步喷雾塔（11）下降到2-30℃的温度冷却到导致焦油和萘和蒸汽的几乎完全冷凝的总缩合，从而净化从所述材料的气体。萘是从冷却水和冷凝物通过吸收其流出所述塔架（11）的除去通过在合适的倾析和浮选槽（18）其中焦油会沉淀处理所述水完全调入焦油所有因此其被包含在所述水，下来，萘会浮起来。焦油和萘将通过从底部和表面合适的管道（20,21）被去除，分别，然后导入单一管道（22）其中theywill海誓山盟和焦油接触将通过将其溶解吸收萘。从植物的各个部分水将收集在滗析器（9），其中焦油确实已吸收萘平息下来并除去，而净化的水重新循环。合适的规定被用来促进和加速到一个最大程度萘吸收到焦油，在该过程的所有步骤。

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