公开(公告)号：US3817716A

公开(公告)日：1974-06-18

申请号：US20004271

申请日：1971-11-18

Applicant: BETZ E

Inventor： BETZ E

IPC: B01D53/86 ,  F23G7/06 ,  F23G7/07 ,  B01J9/04

CPC classification number: F23G7/07 ,  B01D53/86

Abstract: THE INVENTION PROVIDES AN APPARATUS FOR THE CATALYTIC INCINERATION OF WASTE GASES CONTAINING HYDROCARBONS. IN ITS BOARD ASPECTS, THE INVENTION COMPRISES CRACKING HYDROCARBON IN THE PRESENCE OF A CRACKING CATALYST AND SUBSEQUENTLY OXIDIZING THE HYDROCARBONS IN THE PRESENCE OF AN OXIDATION CATALYST. THE APPARATUS COMPRISES MEANS DEFINING A CRACKING CHAMBER CONTAINING A CRACKING CATALYST TOGETHER WITH MEANS FOR DELIVERING GASES TO THE CRACKING CHAMBER AND MEANS DEFINING AN OXIDATION CHAMBER. THE OXIDATION CHAMBER CONTAINS AN OXIDATION CATALYST, AND MEANS ARE PROVIDED FOR DELIVERING WASTE GASES FROM THE CRACKING CHAMBER TO THE OXIDATION CHAMBER.

公开(公告)号：US3712856A

公开(公告)日：1973-01-23

申请号：US3712856D

申请日：1970-12-02

Applicant: BETZ E

Inventor： BETZ E

IPC: B01D53/62 ,  B01J23/40 ,  B01J23/70 ,  B01J32/00 ,  B01J37/06 ,  C23B5/02 ,  B01J11/06 ,  B01J11/08

CPC classification number: B01J37/06 ,  B01D53/62 ,  B01J23/40 ,  B01J23/70 ,  B01J32/00

Abstract: AN IMPROVED METALLIC CATALYST OF HIGH SURFACE AREA A PREPARED FROM AN ALLOY COMPRISING ALUMINUM AND A SECOND METAL WHICH IS SOLUBLE IN OXIDIZING ACIDS. THIS ALLOY IS CONTACTED WITH AN OXIDIZING ACID FOR A TIME PERIOD AND AT A TEMPERATURE AND ACID CONCENTRATION SUFFICIENT TO DISSOLVE A PORTION OF THE SECOND METAL. THE ALLOY IS SUBSEQUENTLY CONTACTED WITH AN ALKALI METAL HYDROXIDE UNDER CONDITIONS SUFFICIENT TO CONVERT THE ALUMINUM AT THE SURFACE OF THE ALLOY TI O ALUMINUM HYDROXIDE. THE ALLOY THUS TREATED IS THEN HEATED IN THE PRESENCE OF OXYGEN FOR A TIME PERIOD AND AT A TEMPERATURE SUFFICIENT TO CONVERT THE ALUMINUM HYDROXIDE TO ALUMINUM OXIDE.