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AssigneeGeorgia-Pacific Resins, Inc.
InventorsIsrael E. Wachs, Ray P. Bourne
Estimating the term…
A process and a catalyst reaction zone comprising one or more fixed bed reactors for oxidizing methanol in a reactant gas feed stream to formaldehyde. According to one embodiment, the process comprises introducing the reactant gas feed stream into an upstream region containing a vanadia-titania first catalyst (substantially free of a volatile MoO3 species) under oxidizing conditions to form a partially oxidized reactant gas feed stream which is then introduced under oxidizing conditions into a downstream region containing a metal molybdate second catalyst to further oxidize any residual methanol contained therein. According to another embodiment, a fixed bed reactor comprising an upstream region and a downstream region containing the aforementioned vanadia-titania and metal molybdate catalysts, respectively, is utilized to implement the inventive process to yield a product gas stream containing formaldehyde preferably at a conversion of 85% or more and a selectivity of 90% or more.
A process for oxidizing methanol to formaldehyde in a catalyst reaction zone comprising a fixed bed reactor having an inlet end, a depth, a width, a length, an upstream region, a downstream region, and an outlet end, said process comprising the steps of:
A fixed bed reactor for oxidizing methanol in a reactant feed stream to formaldehyde, said fixed bed reactor comprising an inlet end, a depth, a length, a width, an upstream region, a downstream region, and an outlet end wherein said fixed bed reactor comprises:
Dependencies are inferred from the claim text.