Patent ID: 7626069
Filing Date: 2009-12-01
Classification: C02F,C10C,C10J,Y10S

Abstract:
1. Method for cleaning tar-bearing waste water, where the waste water is a mixture of water and hydrocarbons, comprising in sequence the steps of: a) separating the mixture into a low-boiling-point part and a high-boiling-point part, and then bringing the low-boiling-point part to vapor form, b) cracking high molecular hydrocarbons from the low-boiling-point part in vapor form, thereby completely converting the hydrocarbons therein to products that are in vapor form at atmospheric pressure and ambient temperature, which products are light combustible and can be utilized in gas engines, gas turbines or the like, c) condensing the water contents of the cracked low-boiling-point part, thus separating the cracked low-boiling-point part into clean water and light combustible hydrocarbons.