Johnson Matthey Inc.

Johnson Matthey Public Limited Company

Gtl.f1 Ag

Alejandro Martin Antonini

Richard John Mercer

Adel Fay Neale

John Leonello Casci

Erling Rytter

Sigrid Eri

Mark McKenna

Jose Angel Ruiz Adan

Kate Elizabeth McCulloch

Kate Elizabeth Mcculloch

Oeyvind Borg

Mark Mckenna

ØYvind Borg

A method for preparing a silica-modified catalyst support is described comprising: (i) applying an alkyl silicate solution to a porous support material in an amount to produce a silica content of the silica-modified catalyst support, expressed as Si, in the range 0.25 to 15% by weight, (ii) drying the resulting silicate-modified support and recovering a first alcoholic solution, (iii) optionally treating the dried silicate-modified support with water, drying the resulting water-treated support and recovering a second alcoholic solution, and (iv) calcining the dried material to form the silica-modified catalyst support, wherein the first alcoholic solution contains &#x2264;10 vol % water and at least a portion of the first alcoholic solution is mixed with alkyl silicate to form the alkyl silicate solution.

Silica-modified catalyst supports

A method for preparing a silica-modified catalyst support is described including:

Catalysts supports

A catalyst unit suitable for loading into a tube in a reactor includes a plurality of catalyst particles incorporated within a removable solid matrix, said unit in the form of an elongate body in which the particles are packed together such that the volume shrinkage upon removal of the removable matrix is &#x2266;20%. The catalyst particles preferably comprise one or more metals selected from the group consisting of Fe and Co in oxidic or reduced form. The units are particularly suitable for loading catalyst into tubes in a Fischer-Tropsch reactor.

Shaped catalyst units

A method is described for lowering the nitrate content in a cobalt catalyst precursor formed by impregnating a catalyst support with cobalt nitrate, comprising calcining the impregnated support in air to effect partial denitrification and subsequently heating the calcined impregnated support to a temperature below 250&#xb0; C. in the presence of a gas mixture comprising 0.1-10% hydrogen by volume in an inert gas.

Catalyst manufacture

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Stockton on Tees, United Kingdom

Alejandro Martin Antonini