Exxonmobil Chemical Patents Inc.

Andrew Wiersum

Luc Roger Martens

Marcel Johannes Janssen

Alex E Carpenter

Sara Garcia Frutos

Paul Hamilton

The present invention concerns a process for oligomerizing an olefin feedstock to form an oligomerization product, and a method of controlling such an oligomerization process. The process comprises oligomerizing propylene to form a Colefin, including contacting a feed stream comprising propylene and a recycle fraction with a solid phosphoric acid oligomerization catalyst under effective oligomerization conditions in an oligomerization reactor to produce an oligomerization effluent; and fractionating the oligomerization effluent to obtain a product fraction and the recycle fraction, the product fraction comprising the Colefin and the recycle fraction comprising a Colefin; wherein the recycle fraction comprises at least 80 wt % of the Colefin, based on the weight of the recycle fraction; and wherein n is 9, or 12.

Oligomerization process

The present disclosure provides a method for forming oxygenates from olefins which includes hydroformylation of aldehydes as a formyl source alternative to syngas. In at least one embodiment, a hydroformylation process is performed at low-temperature and at or near ambient pressure for the conversion of olefins into aldehydes, thus reducing the formation of by-products such as via double bond or skeletal isomerization of the feedstock; or via further conversion of the formed aldehydes and alcohols. In at least one embodiment, the use of gaseous olefinic products (e.g., ethylene) instead of strained olefins (e.g., norbornene) improves the control equilibria in transfer hydroformylation reactions.

Growing community of inventors

Kessel-lo, Belgium

Andrew Wiersum