Process for preparing an alpha-olefin feed stream and polymerization process using the same

Process for preparing an alpha-olefin feed stream comprising

• providing a low-pressure initial stream comprising a hydrocarbon solvent at a low pressure level in the range of from below atmospheric pressure to 15 barg;
• pressurizing the low-pressure initial stream to a medium pressure level in the range of from greater than 15 to 45 barg to form a medium-pressure initial stream;
• pressurizing the medium-pressure initial stream to a high pressure level in the range of from greater than 45 to 300 barg to form a high-pressure initial stream;
• wherein the process further comprises
• introducing a monomer stream comprising an alpha-olefin monomer into the medium-pressure initial stream at medium pressure level and/or into the high-pressure initial stream at high pressure level;
• and
• introducing one or more comonomer streams comprising at least one alpha-olefin comonomer into the low-pressure initial stream at low pressure level, and/or into the medium-pressure initial stream at medium pressure level, and/or into the high-pressure initial stream at high pressure level;
• to form an alpha olefin feed stream,
• wherein the alpha-olefin monomer is selected from ethylene and propylene,
• wherein the at least one alpha-olefin comonomer is selected from the group consisting of 1-heptene, 1-octene, 1-nonene and 1-decene or mixtures thereof, when one or more comonomer streams are introduced into the low-pressure initial stream at low pressure level;
• and
• wherein the at least one alpha-olefin comonomer is selected from the group consisting of propene, 1-butene, 1-pentene and 1-hexene or mixtures thereof, when one or more comonomer streams are introduced into the medium-pressure initial stream at medium pressure level, and/or into the high-pressure initial stream at high pressure level.