Patent ID: 9162951
Filing Date: 2015-10-20
Classification: B01D,C07B,C07C,C08H,C08L,F15D,Y02P,Y10T

Abstract:
1. A method for separating lignin conversion products from catalyst particles during a continuous catalytic conversion of a lignin feedstock to lignin conversion products comprising the steps of: a. conducting the continuous catalytic conversion of the lignin feedstock to the lignin conversion products in the presence of free catalyst particles in a lignin conversion reactor, with the lignin conversion reactor having a liquid phase and a gas phase with a liquid level at the interface between the liquid phase and the gas phase, and b. removing the lignin conversion products from the lignin conversion reactor at a lignin conversion products removal velocity at a point in the lignin conversion reactor which is higher relative to gravity than the liquid level of the lignin conversion reactor wherein the lignin conversion products removal velocity is less than a settling velocity of the catalyst particles.