公开(公告)号：US5234607A

公开(公告)日：1993-08-10

申请号：US872200

申请日：1992-04-22

申请人： Bruce L. Brandenburg ,  Richard W. Lehmann ,  Gene W. Mueller ,  Kenneth P. Keckler

发明人： Bruce L. Brandenburg ,  Richard W. Lehmann ,  Gene W. Mueller ,  Kenneth P. Keckler

IPC分类号： C02F1/74 ,  C02F11/08

CPC分类号： C02F11/08

摘要： The invention is a process for starting up a wet oxidation system using essentially pure oxygen for oxidation of a concentrated wastewater. Flow of startup water and air is established through the wet oxidation system at an elevated temperature and pressure. An incremental increase in flow of oxygen and wastewater to the system commences while simultaneously an incremental decrease in flow of startup water and air occurs, raising system temperature in a controlled fashion. The incremental changes in flows are repeated until the wastewater and pure oxygen have reached about 100 percent of selected operating flows, the startup water and air flows have decreased to zero, and the system has attained the selected operating temperature, while maintaining a selected oxygen residual in the offgases.

公开(公告)号：US5057231A

公开(公告)日：1991-10-15

申请号：US610922

申请日：1990-11-08

申请人： Gene W. Mueller ,  Bruce L. Brandenburg

发明人： Gene W. Mueller ,  Bruce L. Brandenburg

IPC分类号： C02F1/74 ,  C02F11/08

CPC分类号： C02F11/08

摘要： A method for starting up and controlling the temperature of a wet oxidation process in which a heat exchanger employing superheated steam is used to initially heat a waste stream introduced into a wet oxidation reaction vessel for start up and then to subsequently adjust the temperature of the waste stream, after it is preheated by the effluent from the reaction vessel, to a level suitable to maintain steady state operation of the reaction vessel.