A method for producing an olefin stream is provided based on conversion of an initial natural gas stream into a synthesis gas. The resulting synthesis gas is enriched with CO.sub.2 previously separated from the natural gas stream. The synthesis gas is then used to form a methanol composition, which can then be used as feedstock for a methanol-to-olefin conversion reaction.

 
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> Process of making naphthacene from propargyl alcohol

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