Process for oxidation reactions

Abstract

The current embodiment describes a process of flowing an oxidant species over the reducing side of an oxygen transport membrane. O 2− anions are then continuously transported from the reducing side through the oxygen transport membrane to the oxidizing side where an organic compound is converted to a partially oxidized organic compound on the oxidizing side.

1 . A process comprising:
 flowing an oxidant species over the reducing side of an oxygen transport membrane;
 reducing the oxidant species to form O 2−  anions; 
   continuously transporting the O 2−  anions from the reducing side through the oxygen transport membrane to the oxidizing side; and,   converting an organic compound to a partially oxidized organic compound on the oxidizing side.   
     
     
         2 . The process of  claim 1 , wherein only O 2−  anions pass through the oxygen transport membrane. 
     
     
         3 . The process of  claim 1 , wherein an oxidation reaction occurs between the O 2−  anions and the organic compound on the oxidizing side of the oxygen transport membrane. 
     
     
         4 . The process of  claim 3 , wherein the oxidizing side of the oxygen transport membrane catalyzes the oxidation reaction. 
     
     
         5 . The process of  claim 1 , wherein the oxygen transport membrane is a solid oxide electrochemical cell. 
     
     
         6 . The process of  claim 1 , wherein the oxygen transport membrane contains a solid oxide electrolyte. 
     
     
         7 . The process of  claim 5 , wherein the electrolyte is selected from the group comprising: metal-doped perovskites, yttria-stabilized zirconia, scandia-stabilized zirconia, gadolinium-doped ceria, samarium-doped ceria, calcium-doped ceria, ceria-carbonate composites, lanthanum strontium gallate magnesite, lanthanum strontium gallium magnesium oxide, lanthanum strontium cobalt ferrite, barium-zirconium-cerium-yttrium oxides, barium-cerium-yttrium oxides, zirconia, lanthanum strontium iron chromium oxide, lanthanum chromium vanadium oxide, lanthanum strontium chromium vanadium oxide, lanthanum chromium vanadium oxide doped with a transition metal, bismuth oxide, erbium bismuth oxide, niobium cerium oxide, bismuth molybdenum vanadium oxide, strontium magnesium manganese molybdenum oxide, or combinations thereof. 
     
     
         8 . The process of  claim 1 , wherein the oxidizing side of the oxygen transport membrane is a multilayer anode with at least two layers. 
     
     
         9 . The process of  claim 11 , wherein one layer of the multilayer anode is selected from the group comprising: metal-doped perovskites, yttria-stabilized zirconia, scandia-stabilized zirconia gadolinium-doped ceria, samarium doped ceria, iron manganese cerium oxide, gadolinium strontium manganate, lanthanum strontium manganite, lanthanum strontium gallate magnesite, lanthanum strontium ferrite, lanthanum strontium cobalt oxide, lanthanum strontium cobalt ferrite, lanthanum strontium manganese cobalt oxide, lanthanum strontium chromate, lanthanum strontium manganate chromate, lanthanum strontium iron chromium oxide, lanthanum strontium titanium oxide, strontium magnesium manganese molybdenum oxide, lanthanum calcium manganate, lanthanum nickel ferrite, nickel/nickel oxide cermet, copper oxide, zeolites, metal-doped zeolites, iron-doped ZSM-5, copper-doped ZSM-5, copper and iron co-doped ZSM-5 lanthanum chromium vanadium oxide, lanthanum strontium chromium vanadium oxide, lanthanum chromium vanadium oxide doped with a transition metal, bismuth oxide, erbium bismuth oxide, niobium cerium oxide, bismuth molybdenum vanadium oxide, strontium magnesium manganese molybdenum oxide, or combinations thereof. 
     
     
         10 . The process of  claim 1 , wherein the oxidant side of the oxygen transport membrane is at least a multilayer cathode with at least two layers. 
     
     
         11 . The process of  claim 10 , wherein the one layer of the multilayer cathode is selected from the group comprising: gadolinium-doped ceria, gadolinium strontium manganate, lanthanum strontium manganite, lanthanum strontium gallate magnesite, lanthanum strontium ferrite, lanthanum strontium cobalt oxide, lanthanum strontium cobalt ferrite, lanthanum strontium manganese cobalt oxide, lanthanum strontium manganate chromate, lanthanum calcium manganate, lanthanum nickel ferrite, strontium samarium cobalt oxide (SSC), or combinations thereof. 
     
     
         12 . The process of  claim 1 , wherein the oxygen transport membrane operates from about 300° C. to about 800° C. 
     
     
         13 . The process of  claim 1  wherein the oxygen transport membrane operates from about 450° C. to about 700° C. 
     
     
         14 . The process of  claim 1  wherein the oxygen transport membrane is used to generate electricity. 
     
     
         15 . A process comprising:
 flowing air over the reducing side of a solid oxide cell;   reducing the air to produce oxygen-deficient air and O 2−  anions;   continuously transporting only O 2−  anions from the reducing side of the solid oxide cell to the oxidizing side; and   oxidizing the O 2−  anions on the oxidizing side of the solid oxide cell with methane and a catalyst layer to produce methanol.