发明名称 |
Process for selective adsorption of naphthalenic hydrocarbons from water containing same using activated carbon. |
摘要 |
<p>Naphthalenic hydrocarbons are selectively removed from a waste water stream (e.g. from a petrochemical operation) by contacting the waste water stream (6) containing naphthalenic hydrocarbons with a bed (8) of activated carbon which is, or has become, saturated with respect to non-naphthalenic hydrocarbons. Relatively short contacting times, e.g. 3 to 10 minutes, selectively reduce the concentration of naphthalenic hydrocarbons to a predetermined concentration, e.g. not exceeding 2 ppm, in the waste water effluent stream (9) leaving the bed (8). The contacting is continued until the waste water effluent stream (9) has a naphthalenic hydrocarbon content exceeding the predetermined concentration whereupon the flow of incoming waste water (6) is interrupted and the activated carbon of the bed (8) is regenerated. </p> |
申请公布号 |
EP0018852(A1) |
申请公布日期 |
1980.11.12 |
申请号 |
EP19800301484 |
申请日期 |
1980.05.07 |
申请人 |
EXXON RESEARCH AND ENGINEERING COMPANY |
发明人 |
KNETTIG, EVA;KEMPLING, JOHN CHRISTOPHER |
分类号 |
C02F1/28;(IPC1-7):02F1/28 |
主分类号 |
C02F1/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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