Sabic Global Technologies B.v.

Saudi Basic Industries Corporation

Robert Cornelis Van Bodegom

Diego Mauricio Castaneda Zuniga

Carolina De Los Angeles Toloza Porras

Hua Bai

Mohsen Nikkhoo

Bas Eugene Hans Megens

Joannes Augustinus Maria Van Kan

Sjors Slots

The invention relates to a device () for injecting and mixing a reactive fluid in a flow of a process fluid for the preparation of polyolefins, comprising: &#x2022;an annular part () having an outer wall and an inner wall (), wherein the annular part () is arranged for having a flow of the process fluid in a transport direction (F); &#x2022;a support structure () connected to the inner wall () of the annular part (); &#x2022;an injector part () mounted on the support structure (), wherein the injector part () is cylindrically shaped and wherein the cylindrical axis A-A' of the injector part is parallel with a central axis of the annular part and is in the central part of the annular part (); wherein the injector part () comprises a nozzle () for injecting the reactive fluid, disposed at a downstream side of the injector part relative to the transport direction (F); &#x2022;a supply channel () extending from the outer wall of the annular part () through the support structure () to the nozzle () of the injector part (), and wherein the annular part (), the support structure () and the injector part () are made from a single piece of metal.

Device for injecting and mixing a reactive fluid in high pressure LDPE processes

The invention relates to a process a system and a high pressure pump for the preparation of a copolymer of ethylene and a di- or higher functional (meth)acrylate in a tubular reactor, comprising the steps of: injecting ethylene at a pressure of 100 MPa to 350 MPa into the reactor from a high pressure compressor and injecting the (meth)acrylate at a pressure of 100 MPa to 350 MPa into the reactor from a high pressure pump, wherein the high pressure pump comprises&#x2014;a pump suction chamber for receiving a medium to be compressed; &#x2014;a cylinder for receiving the medium to be compressed from the pump suction chamber; &#x2014;an outlet for discharging a compressed medium from the cylinder, &#x2014;a seal fixed to the inner wall of the cylinder at an end of the cylinder distal to the outlet and&#x2014;a plunger movable in the cylinder by sliding through the seal, wherein a leakage gap is present along the plunger and the leakage gap is fluidly connected to the pump suction chamber.

Process for the preparation of an ethylene copolymer in a tubular reactor

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Geleen, Netherlands

Robert Cornelis Van Bodegom