The present disclosure relates to a method of preparing propylene oxide comprising the steps: (a) oxidizing alpha-methylbenzyl alcohol with air to form a first reaction mixture comprising hydrogen peroxide and acetophenone; (b) reacting propylene with the first reaction mixture in the presence of a catalyst to form a second reaction mixture comprising propylene oxide; (c) separating the propylene oxide from the second reaction mixture to form a third reaction mixture; (d) heating the third reaction mixture to decompose hydrogen peroxide, whereby a fourth reaction mixture is formed; (e) hydrogenating the acetophenone in the fourth reaction mixture with hydrogen to form a fifth reaction mixture comprising alpha-methylbenzyl alcohol; and (f) separating alpha-methylbenzyl alcohol from the fifth reaction mixture and returning the methyl benzyl alcohol to step (a).

A fiber demarcation box includes a rear panel extending along a plane in height and width directions that are perpendicular to one another. Outer sidewalls extend away from a perimeter of the rear panel in a depth direction that is perpendicular to the height and width directions. A bulkhead that adjoins the rear panel and the outer sidewalls 104 extends between opposite facing ones of the outer sidewalls in the height direction so as to divide the fiber demarcation box into first and second interior volumes. A cable plane divider in the first interior volume adjacent to the bulkhead includes a first planar section that extends away from the bulkhead in the width direction and is spaced apart from the rear panel in the depth direction.

The invention relates to the production of aromatic hydrocarbon by the conversion of a feed comprising C.sub.2+ non-aromatic hydrocarbon, e.g., natural gas. The invention is particularly useful in converting natural gas to liquid-phase aromatic hydrocarbon, which can be more easily transported away from remote natural gas production facilities. The conversion is carried out in the presence of a dehydrocyclization catalyst comprising dehydrogenation and molecular sieve components. The dehydrocyclization catalyst has an average residence time of 90 seconds or less.

The invention relates to converting non-aromatic hydrocarbon in the presence of CO.sub.2 to produce aromatic hydrocarbon. CO.sub.2 methanation using molecular hydrogen produced during the aromatization increases aromatic hydrocarbon yield. The invention also relates to equipment and materials useful in such upgrading, to processes for carrying out such upgrading, and to the use of such processes for, e.g., natural gas upgrading.

A hydroalkylation catalyst comprising a molecular sieve and a compound of a hydrogenation metal is activated by treating the catalyst at a temperature of less than about 250 C. in the presence of hydrogen.

This invention relates to gallium zeolites. This invention also relates to systems and methods utilizing the gallium zeolites.