公开(公告)号：US20250019468A1

公开(公告)日：2025-01-16

申请号：US18712084

申请日：2022-11-14

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Byron Smith John Rajarethnam ,  Musaad Al-Sadhan ,  Ravi Ranjan Kumar ,  Retheesh Madhusudanan Vanchiyil ,  Hesham Al-Shobilly ,  Erik René Delsman

IPC: C08F2/01 ,  B01J8/18 ,  B01J8/26 ,  C08F2/34 ,  C08F10/06

Abstract: Process for the polymerization of one or more monomers in a fluidized bed reactor, which reactor comprises a reaction zone which is confined at the underside by a gas distribution plate and at the top side by a virtual end surface, in which a fluidized bed is maintained between the underside and the top side, and in which at least part of the gaseous stream withdrawn from the top of the reactor is cooled to a point where the stream partially condenses into a liquid and in which at least part of the resulting two-phase stream is recycled to the reactor via an inlet which terminates in the reactor below the gas distribution plate, wherein, the reaction zone of the reactor is divided into two compartments by a draft tube extending from a point located above the gas distribution plate such that the area ratio of the circumferential draft tube inlet area (Ahb) to annular area (Aa) is between 0.5 to 3, preferably 2, to a point located below the end surface.

公开(公告)号：US11203556B2

公开(公告)日：2021-12-21

申请号：US17058974

申请日：2019-05-13

Applicant: SABIC Global Technologies B.V.

Inventor： Ernesto Uehara ,  Mohammed Sabri Abdel Ghani ,  Retheesh Madhusudanan Vanchiyil ,  Ananth Sharma ,  John Byron Smith Rajarethnam

IPC: C07C2/50 ,  B01F5/02 ,  C07C13/61

Abstract: Systems and methods for producing dicyclopentadiene from cyclopentadiene using reactive jet mixing are disclosed. A C5 hydrocarbon mixture that comprises cyclopentadiene (C5H6) is injected as a jet stream into C5 hydrocarbon liquid in a reactor tank. Under appropriate reaction conditions, cyclopentadiene is dimerized to form dicyclopentadiene.