Method of purifying waste fluid

Abstract

Abstract A FRONTWARD FLOW AND BACKWARD FLOW METHOD OF AND APPARATUS FOR PURIFYING WASTE FLUID CONTAINING WASTE WATER AND CORROSIVE SALTS WITH A HIGH TEMPERATURE STEAM FROM A CONTINUOUS COKE QUENCHING APPARATUS TO PRODUCE SUBSTANTIALLY PURE SALT FREE CONDENSATE ARE DISCLOSED. (A) ONE METHOD OF PURIFYING WASTE FLUID, CONTAINING WASTE WATER AND CORROSIVE SALTS PRODUCED IN A COKE PRODUCING APPARATUS AND NORMALLY UTILIZED TO QUENCH COKE IN A COKE QUEENCHING APPARATUS, WITH WASTE STEAM FROM THE COKE QUENCHING APPARATUS TO PRODUCE SUBSTANTIALLY SALT FREE CONDENSATE, COMPRISE THE STEPS OF: (A) HEATING THE WASTE FLUID IN HEAT EXCHANGE RELATIONSHIP WITH THE STEAM TO A FIRST PREDETERMINED TEMPERATURE AT A FIRST PREDETERMINED PRESSURE; (B) CONDENSING THE HIGH TEMPERATURE STEAM TO FORM SUBSTANTIALLY SALT FREE CONDENSATE; (C) VAPORIZING THE HEATED WASTE FLUID AT THE FIRST PREDETERMINED TEMPERATURE AT THE FIRST PREDETERMINED PRESSURE TO VAPORIZE A PORTION OF THE WASTE FLUID AND TOCONVENTRATE THE CORROSIVE SALTS TO FORM A CONCENTRATE, THE FIRST PREDETERMINED PRESSURE BEING LOWER THAN THE PRESSURE OF THE WASTE STEAM FROM THE COKE QUENCHING APPARATUS; (D) CONDENSING THE HEATED VAPORIZED PORTION OF THE WASTE FLUID TO FORM SUBSTANTIALLY SALT FREE CONDENSATE IN AN (E) UTILIZING THE SUBSTANTIALLY SALT FREE CONDENSATE IN AN INDUSTRIAL APPLICATION, THEREBY ELIMINATING THE DISPOSAL OF THE WASTE FLUID AND THE CONTAMINATION OF THE ATMOSPHERE WITH THE WASTE FLUID IF THE WASTE FLUID WERE EMPLOYED TO QUENCH THE COKE IN THE COKE QUENCHING APPARATUS, AND UTILIZING THE WASTE STEAM FOR A USEFUL PURPOSE.

Inventors

• 👤 W Didycz
• 👤 D Glassman

Bibliographic Details