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OwnerEbrahim Bagherzadeh, Abbas Hassan +2inventors
InventorsEbrahim Bagherzadeh, Abbas Hassan, Rayford Anthony, Xianchun Wu
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A process and catalyst for the partial oxidation of low molecular weight paraffinic hydrocarbons, such as methane, ethane, propane, naphtha, and natural gas condensates to form alkenes, such as ethylene, propylene and other valuable by-products. The process involves contacting the low molecular weight paraffinic hydrocarbon with the catalyst in the presence of oxygen or air and optionally steam. The catalyst has a perovskite-type crystalline structure, and lends itself to fixed and fluidized bed reactor configurations. The conversion process is less costly than conventional processes due to low pressure operation, the use of air and steam as a source of oxygen, and lower operating temperatures resulting in less coking, downtime, and reduced cost for materials of construction. Catalyst activity is extended and reactor downtime for catalyst regeneration is minimized by addition of chlorides and/or amines.
A method of forming a perovskite composition having the general structure of ABX3, the method comprising the steps of:
7 The method as described in claim 5, wherein the samarium is chosen from the group consisting of samarium oxide (Sm2O3) and samarium chloride (SmCl3).
A perovskite composition having the general structure of ABX3, wherein
The composition as described in claim 16, wherein in the composition the barium, the titanium and the samarium are in a molar ratio of about 3:2:1 (Ba:Ti:Sm), respectively.
A method of converting paraffinic hydrocarbons to alkenes, comprising the steps of:
39 The method as described in claim 38, wherein the reactor is lined with an inert liner.
40 A process for converting paraffinic hydrocarbons to alkenes in the presence of a catalyst composition prepared by the method of claim 1.
Dependencies are inferred from the claim text.