Shell Oil Comapny

Willem H Stork

Jacobus Eilers

Herman W Kouwenhoven

David John McNamara

Swan T Sie

Martin F Post

Hermanus Jongkind

Johannes K Minderhoud

Carolus M Mesters

Johannes M Nanne

Johannes Anthonius Van Veen

Krijn P De Jong

Jean-Pierre Gilson

Robert H Van Dongen

Auke F De Vries

Danny G Peferoen

Alain Seive

Martijn A Van Koten

Radjasa Harsono

Catalyst comprising a porous inorganic refractory oxide wherein the catalyst has:

Catalyst and hydrotreating process

The present invention relates to a process for the preparation of a large-pore molecular sieve, comprising crystallizing the molecular sieve from a starting mixture at a pH in the range of from 3 to 8, and recovering a large-pore molecular sieve, the said starting mixture having a molar composition satisfying the following molar ratio's:

Process for preparing a large molecular sieve

An improved hydroconversion process, particularly a hydrocracking process, employs a supported catalyst containing metals of Group VI and/or VIII. The catalyst support comprises a crystalline aluminosilicate of the zeolite Y type, a binder and a dispersion of silica-alumina in an alumina matrix. The catalyst support composition comprises less than 25% by weight of the zeolite material, more than 25% by weight of the binder and at least 30% by weight of the dispersion.

Hydrocarbon conversion catalyst

Process for upgrading a paraffinic feedstock which includes: a) supplying the feedstock and an olefins-containing stream at a paraffin to olefin volume ratio greater than 2 to a reactor containing a zeolite-beta catalyst; and b) removing the upgraded product; wherein the process is operated at an olefin conversion of at least 90 mol % in an external circulation reactor having an extent of external circulation of liquid reactor content expressed as ##EQU1## of greater than 2 wherein .phi./v is the volumetric flow rate of feedstock and olefins-containing stream and .phi./vc is the volumetric external circulation flow rate, and upgraded products produced by the process.

Process for upgrading a paraffinic feedstock

A process is disclosed for the preparation of a light hydrocarbon oil distillate by (1) hydrocracking a vacuum distillate, (2) separating the product of (1) into distillates and a residue, (3) catalytic cracking the residue obtained in (2) and a portion of the vacuum distillate to thereby isolate a light hydrocarbon oil distillate.

Process for the preparation of light hydrocarbon distillates by

Distillates are prepared from asphaltenes-rich feeds by a process comprising subjecting the feed to solvent deasphalting, and subjecting the resulting asphaltic bitumen fraction to a combination of catalytic hydrotreating and thermal cracking.

Process for the preparation of hydrocarbon oil distillates

In the preparation of a heavy oil with a low Ramsbottom Carbon Test (RCT) from a long residue by a two-stage process comprising catalytic hydrotreatment followed by solvent deasphalting and recycle of the asphalt to the first stage the catalytic hydrotreatment for RCT reduction in the first stage is carried out at such a severity that the C.sub.4.sup.- gas production per percent RCT reduction is kept between defined limits.

Process for reducing Ramsbottom Carbon Test of short residues

Process for the preparation of a heavy oil with a low Ramsbottom Carbon Test (RCT) from a long residue by (a) catalytic hydrotreatment for RCT reduction at such severity that the C.sub.4.sup.- gas production per percentage RCT reduction is kept between defined limits, followed by (b) solvent deasphalting of the (vacuum or atmospheric) distillation residue of the hydrotreated product.

Process for reducing ramsbottom carbon test of long residues

Process for the preparation of a heavy oil with a low Ramsbottom Carbon Test (RCT) from a short residue by (a) catalytic hydrotreatment for RCT reduction at such severity that the C.sub.4.sup.- gas production per percentage RCT reduction is kept between defined limits, followed by (b) solvent deasphalting of the (vacuum or atmospheric) distillation residue of the hydrotreated product.

Process for reducing ramsbottom carbon test of short residues

Process for the preparation of a heavy oil with a low Ramsbottom Carbon Test (RCT) from an asphalt by (a) catalytic hydrotreatment for RCT reduction at such severity that the C.sub.4.sup.- gas producton per percentage RCT reduction is kept between defined limits, followed by (b) solvent deasphalting of the (vacuum or atmospheric) distillation residue of the hydrotreated product.

Process for reducing the Ramsbottom carbon test of asphalt

In the preparation of a heavy oil with a low Ramsbottom Carbon Test (RCT) from a precipitation asphalt by a two-stage process comprising catalytic hydrotreatment followed by solvent deasphalting and recycle of the separated asphalt to the first stage, the catalytic hydrotreatment for RCT reduction in the first stage is carried out at such severity that the C.sub.4.sup.- gas production per percent RCT reduction is kept between defined limits.

Process for reducing ramsbottom carbon test of asphalt

In the preparation of a heavy oil with a low Ramsbottom Carbon Test (RCT) from a short residue by a two-stage process comprising catalytic hydrotreatment followed by solvent deasphalting and recycle of the asphalt to the first stage, the catalytic hydrotreatment for RCT reduction in the first stage is carried out at such severity that the C.sub.4.sup.- production per percent RCT reduction is kept between defined limits.

Process for reducing ramsbottom test of short residues

A Process is disclosed for the preparation of zeolite ferrierite of high purity by hydrothermal crystallization from a starting mixture containing at least one compound selected from piperidine and alkyl-substituted piperidines.

Process for the preparation of ferrierite

Novel crystalline silicates which in dehydrated form have the composition in terms of moles of the oxides: (1.0.+-.0.3)(R).sub.2/n O.[aFe.sub.2 O.sub.3.bAl.sub.2 O.sub.3.cGa.sub.2 O.sub.3.y(dSiO.sub.2.eGeO.sub.2)], wherein R is one or more mono- or bivalent cations and a, b, c, d, e, y and n are as defined hereinafter are disclosed. The thermally stable silicates are suitably employed as extracting agents, drying agents, ion exchange agents, catalysts and catalyst carriers.

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Amsterdam, Netherlands

Willem H Stork