Veba Oel Ag

Veba Oel Entwicklungs-gesellschaft Mbh

Veba Oel Technologie Gmbh

Intevep, S.a.

Klaus Niemann

Ludwig Merz

Rolf Holighaus

Klaus Kretschmar

Claus Strecker

Jose Guitian

Julio Krasuk

Franzo Marruffo

Christian Hecka

Hans-Peter Wenning

Heinz Frohnert

Edgar Muschelknautz

Werner Dohler

Martin Rupp

Dieter Ullrich

Klaus Kurzeja

Klaus Strecker

Werner Riedel

Horst Hastrich

Method for processing recycled or scrap plastics

Device for depolymerizing used and waste plastics

Process for the processing of salvaged or waste plastic materials

Process for recovering synthetic raw materials and fuel components from

A catalyst for the hydrogenation of a hydrocarbon material which is a member selected from the group consisting of red mud, iron oxides, iron ores, hard coals, lignites impregnated with heavy metal salts, carbon black, soots from gasifiers, and cokes produced by the hydrogenation of virgin residues, the catalyst being comprised of at least two separate particle size fractions such that the combined fractions have a particle size distribution between 0.1 and 2,000 microns with 10-40 wt. % of the particles having a particle size greater than 100 microns, and the mixture of fractions not being represented by a straight line when the accumulative weight of the particles vs. particle size which is plotted on log (minus log) vs. log graph paper has a correlation coefficient R.sup.2 less than 0.96 as determined from the equation: ##EQU1## wherein n is the number of experimental points, y is ln [-ln (n/1000)] and x is ln (dp), wherein dp is the particle size (.mu.m) of the particles.

Catalyst for the hydrogenation of hydrocarbon material

A high-pressure hot separator for the separation of an overhead product from a process of high-pressure hydrogenation of coals, tars, crude oils, whose distillation and extraction products or similar carbon-containing feedstock such as heavy oils, low-temperature carbonization oils, extracts of heavy oil sands and the like, is downstream from the bottom phase reactors of the high-pressure hydrogenation. The separator is constructed from a vertically erected cylindrical pressure jacket having an upper cover, a lower cover, an inside adjacent thermal insulation member and a cylindrical wall insert. The overhead product is separated into a gas/vapor phase and a bottom product. A cyclone separator is installed in the gas/vapor space of the hot separator for improvement of the separation function.

High-pressure hot separator

Process for the hydrogenative conversion of heavy oils and residual oils, used oils and waste oils, mixed with sewage sludge in a typical liquid phase hydrogenator with gases containing hydrogen, with the addition of a finely ground substance that preferably has a large internal surface area, as additive. The additive is added in two different particle size ranges so that a portion of the additive is present as a fine particle size fraction iwth a particle size of 90 .mu.m or less and another portion as a coarse particle size fraction with a particle size of 100 .mu.m to 2000 .mu.m, preferably 100 to 1000 .mu.m with the procedure being carried out with a weight ratio of raw oils to sewage sludge used of 10:1 to 1:1.5. Conversion of vacuum residue of a Venezuelan heavy oil with the addition of 2 wt. % of lignite coke as additive and with the admixture of 10 wt. % industrial or municipal sewage sludge in a liquid phase hydrogenator to obtain useful liquid products in particular, and extensive conversion of the organic fractions of the sewage sludge.

Process for the hydrogenative conversion of heavy oils and residual

Liquid phase hydrogenation of the liquid products of the low temperature carbonization of waste yields products which are free of polycyclic aromatic hydrocarbons and chlorinated hydrocarbons. The hydrogenation may be catalyzed by the low temperature coke produced in the low temperature carbonization.

Process for treating wastes and the like by low temperature

A process for the hydrogenative conversion of mixtures of oil and organic waste products, comprising the steps of:

Process for the hydrogenative conversion of heavy oils and residual oils

A process for the hydrogenation of heavy oils, residual oils, waste oils, used oils, shell oils, and tar sand oils by hydrogenating a slurry of the oil at a partial hydrogen pressure of 50-300 bar, a temperature of 250.degree.-500.degree. C., a space velocity of 0.1-5 T/m.sup.3 h, and a gas/liquid ratio of 100-10000 Nm.sup.3/ T, wherein the additive comprises two different grain size portions, a fine grain portion having a grain size of 90 microns or less and a coarse grain portion having a grain size of 100-1000 microns.

Process for the hydrogenation of heavy and residual oils

Halogen-containing oils and hydrocarbons are treated on an industrial scale whereby the mineral base oils comprising the main component of the oils hydrocarbons can be reused. The oils are subjected to a high pressure hydrogenation under typical conditions of liquid phase hydrogenation or of combined liquid-phase and gas-phase hydrogenation, at hydrogen pressures of 20-325 bar, temperatures of 250.degree.-500.degree. C., and gas/oil ratios of 100-300 m.sup.3 per metric ton at STP.

Hydrogenation of mineral oils contaminated with chlorinated hydrocarbons

Growing community of inventors

Oberhausen, Germany

Klaus Niemann