Process for activating metallocene catalysts in reactor to increase catalyst productivity in pao production
OwnerAndrew E. Atalla, Patrick C. Chen +1inventors
InventorsAndrew E. Atalla, Patrick C. Chen, Jennifer L. Rapp
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Abstract
Processes for making poly alpha-olefins (PAO) at high catalyst efficiency, good kinetics, and high conversions are provided. In at least one embodiment, the process includes feeding at least one catalyst to an oligomerization reactor; feeding at least one activator to the oligomerization reactor; feeding one or more linear alpha olefins to the oligomerization reactor and oligomerizing the one or more linear alpha olefins within the oligomerization reactor in the presence of the catalyst and the activator to produce a poly alpha-olefin (PAO). The catalyst and activator do not contact one another outside of the oligomerization reactor.
Claims19
A process for making a poly alpha-olefin (PAO), comprising:
- feeding at least one catalyst to an oligomerization reactor;
- feeding at least one activator to the oligomerization reactor;
- feeding one or more linear alpha olefins to the oligomerization reactor;
- and
- oligomerizing the one or more linear alpha olefins within the oligomerization reactor in the presence of the catalyst and the activator to produce a poly alpha-olefin (PAO), wherein the catalyst and activator do not contact one another outside of the oligomerization reactor.
A process for making a poly alpha-olefin (PAO), comprising:
- feeding a first catalyst to a first oligomerization reactor;
- feeding an activator to the first oligomerization reactor;
- feeding one or more linear alpha olefin to the first oligomerization reactor;
- oligomerizing the one or more linear alpha olefins within the first oligomerization reactor in the presence of the first catalyst and the activator to produce a poly alpha-olefin (PAO) intermediate, wherein the first catalyst and the activator do not contact one another outside of the first oligomerization reactor;
- feeding the PAO intermediate and one or more additional linear alpha olefins to a second oligomerization reactor;
- feeding a second catalyst to the second oligomerization reactor;
- and
- oligomerizing the PAO intermediate and the one or more additional linear alpha olefins within the second oligomerization reactor in the presence of the second catalyst to produce a poly alpha-olefin (PAO) product.
A process for making a poly alpha-olefin (PAO), comprising:
- feeding a metallocene catalyst to a first oligomerization reactor;
- feeding an activator to the first oligomerization reactor;
- feeding one or more linear alpha olefin to the first oligomerization reactor;
- oligomerizing the one or more linear alpha olefins within the first oligomerization reactor in the presence of the metallocene catalyst and the activator to produce a poly alpha-olefin (PAO) intermediate, wherein the metallocene catalyst and activator do not contact one another outside of the first oligomerization reactor;
- feeding the PAO intermediate and one or more additional linear alpha olefins to a second oligomerization reactor;
- feeding a BF3 catalyst to the second oligomerization reactor;
- and
- oligomerizing the PAO intermediate and the one or more additional linear alpha olefins within the second oligomerization reactor in the presence of the BF3 catalyst to produce a poly alpha-olefin (PAO) product.
Dependencies are inferred from the claim text.