Abstract:
A selectivated molecular sieve, e.g., ZSM-22 or ZSM-23, is used as olefin oligomerization catalyst to provide product, e.g., octenes and dodecenes from butene, having a low degree of branching and hindered double bonds.
Abstract:
A method and apparatus for saving space and components under detectors for staring array systems by timely combining detector inputs to a common photodiode amplifier, including establishing sequential connections from a plurality of detector inputs to a common photodiode amplifier by selecting a single path to the amplifier from each detector input at different times clamping each path to a source of potential to prevent signal transmission over the paths, and releasing said clamping of the path selected to supply the amplifier.
Abstract:
In a process for oligomerizing a C2 to C6 n-olefin feedstock over surface deactivated ZSM-23, the feedstock contains from about 0.1 wt % to about 25 wt % of an iso-olefin and the C12+ fraction of the oligomerized olefin product contains less than 0.5 atom % of quaternary carbon atoms.
Abstract translation:在通过表面失活的ZSM-23将C 2〜C 6向C 6正构烯烃原料进行低聚的方法中,原料含有约0.1重量%至约25重量%的 低聚烯烃产物的异烯烃和C 12 H 12 +馏分含有小于0.5原子%的季碳原子。