| http://www.w3.org/ns/prov#value | - Other contaminants or by-products include hydrogen and hydrocarbons such as acetylene, methyl acetylene, propadiene, butadiene and butyne. [0182] Typically, in converting one or more oxygenates to olefin (s) having 2 or 3 carbon atoms, a minor amount hydrocarbons, particularly olefin (s), having 4 or more carbon atoms is also produced.
|
