Method for preparing linear alpha-olefins

US9593055B2 · kind B2 · utility

Assignees

• SAUDI BASIC INDUSTRIES CORPORATION · SA
• Linde GmbH · DE

Inventors

• Vugar O. Aliyev · Riyadh, SA
• Fuad Mosa · Riyadh, SA
• Mohammed H. Al-Hazmi · Riyadh, SA
• Syriac J. Palackal · Bartlesville, US
• Ayed Al-Ayed · Riyadh, SA
• Sultan Eid Al-Otaibi · Riyadh, SA
• Mohammed Zahoor · Riyadh, SA
• Wolfgang Muller · Königsfeld, DE
• Peter M. Fritz · Unterhaching, DE
• Heinz Bölt · Wolfratshausen, DE
• Anton Wellenhofer · Hersbruck, DE
• Florian Winkler · Munich, DE
• Uwe Rosenthal · Munich, DE
• Hans-Jörg Zander · Birkenfeld, DE
• Normen Peulecke · Rostock, DE
• Bernd H. Müller · Rostock, DE
• Karl Hofmann · Neckarrems, DE
• Helmut Fritz · Munich, DE
• Carsten Taube · Ebersberg, DE
• Andreas Meiswinkel · Munich, DE
• Richard Schneider · Murnau am Staffelsee, DE
• Anina Woehl · Munich, DE

Key dates

• Filing date: Jan 7, 2009
• Grant date: Mar 14, 2017
• Expiry date: Nov 20, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2531/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a method for preparing linear alpha-olefins (LAO) by oligomerization of ethylene in the presence of solvent and homogenous catalyst, comprising the steps of: (i) feeding ethylene, solvent and catalyst into an oligomerization reactor, (ii) oligomerizing the ethylene in the reactor, (iii) removing a reactor outlet stream comprising solvent, linear alpha-olefins, ethylene, and catalyst from the reactor via a reactor outlet piping system, (iv) transferring the reactor outlet stream to a catalyst deactivation and removal step, and (v) deactivating and removing the catalyst from the reactor outlet stream, characterized in that at least one organic amine is added into the oligomerization reactor and/or into the reactor outlet piping system.