2,6 dimethyl naphthalene from other dimethyl naphthalene isomer, and the dimethyl tetralin which possesses the methyl group with respect to each ring/the manner which produces from dimethyl decalins

摘要

The invention discloses a method of making 2,6-dimethylnaphthalene from any DMN with one methyl on each ring in a two-step hydroisomerization/dehydrogenation process. The catalyst used in the hydroisomerization step is an acidic catalyst such as a silica aluminum catalyst with a hydrogenation/dehydrogenation metal. The catalyst used in the dehydrogenation step is a reforming type catalyst.