The Petroleum Oil and Gas Corporation of South Africa (Pty) Ltd.

L'air Liquide,societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude

Statoilhydro Asa

Petroleum Oil and Gas Corporation of South Africa, Ltd.

The Petroleum Oil and Gas Corporation of South Africa (Soc) Ltd

Patrick Otto Taylor

Pål Søraker

Marcus Fathi

Cyril David Knottenbelt

Marc Brueschke

Ockert Rudolph Minnie

Edgar Noel Creed

Vernon Jeremay Adams

Volan Richard Nicholson

The disclosure deals with a slurry bubble column reactor for converting a gas mixture comprising carbon monoxide and hydrogen into liquid hydrocarbons. The slurry bubble column reactor features a slurry bed of catalyst particles, an inlet conduit for feeding the gas mixture into the slurry bed, a filtration zone for separating the liquid hydrocarbons from the catalyst particles and a liquid outlet conduit for withdrawing the separated hydrocarbons from the filtration zone. The filtration zone is situated in the slurry bubble column reactor such that the slurry bed is found in a first and a second heat exchange zone with the filtration zone arranged between the first and the second heat exchange zone.

Slurry bubble column reactor for a fischer-tropsch process

The invention provides a method for the separation of liquid from a three phase slurry bubble column. The method includes the step of charging the inside of a hollow filter element with a rinsing fluid to clean the inside of the filter for catalyst fines followed by a backflushing step. The invention also provides an installation for the separation of liquid from a three phase slurry bubble column. The installation includes at feast one hollow and enclosed filter element and one or more conduits in fluid communication with the internal volume of the filter, with at least one conduit being configured or connected for inflow of rinsing fluid and at least one conduit being configured or connection for outflow of rinsing fluid.

Filtration method and installation

Disclosed is a tube sheet assembly for a waste heat boiler employed in a chemical process plant and which makes use of metal ferrules for protecting the inlets of the exchange tubes of the tube sheet. The tube sheet assembly includes at least one thermal insulator which is located inside an inlet opening of a tube sheet of the tube sheet assembly, and which covers a portion of a respective ferrule of the tube sheet assembly, thereby providing thermal insulation between the tube sheet and the ferrule.

Tube sheet assembly

This invention relates to a process for the removal of catalyst particles from a hydrocarbon stream () derived from the reaction of synthesis gas () with a particulate Fischer Tropsch catalyst in a Fischer Tropsch reactor (). The process includes a primary separation step () which makes use of a filter, wherein the filter has a pore size which is 70% to 95 of the average size of the particles of the Fischer Tropsch catalyst, thereby forming a primary filtered hydrocarbon stream () containing fine catalyst particles. The benefit of this selection of filter pore size is that it mitigates fines build-up on the filter of the primary separator. The primary filtered hydrocarbon stream () is then passed to a secondary separation step in a cross-flow filtration unit () which removes fine catalyst particles from the primary filtered hydrocarbon stream to provide a retenate () containing the catalyst fines, and permeate () containing a hydrocarbon product.

Removal of ultra-fine particles from a Fischer Tropsch stream

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Mossel Bay, South Africa

Patrick Otto Taylor