Metallgesellschaft Aktiengesellschaft

Intevep, S.a.

Bergwerksverband Gmbh

Ruhrgas Aktiengesellschaft

Roland Rammler

Ingo Dreher

Hans-Jurgen Weiss

Hans J Weiss

Paul Schmalfeld

Alfons Bussmann

Martin Hirsch

Werner Peters

Hans Sommers

Thomas Simo

Rodolfo B Solari

Jorg Schmalfeld

Erwin Ahland

Joachim Lehmann

Heinz Bathke

Paul Lange

Rafael O Hidalgo

Johann Grosse-Heitmeyer

Helmut Hahn

Karl-Heinz Bietz

Hans-Adolf Herbertz

Rainer Rudisch

Johannes-Josef Albrecht

Burkhard Bock

The present invention relates to a combined process for separating and converting asphaltenes of high molecular weight and high softening point from heavy hydrocarbon material containing asphaltenes by a process that combines a deasphalting method to produce solid asphaltenes and a continuous coking procedure for the solid asphaltenes. The combined process converts the material into more valuable liquid hydrocarbon products of lower molecular weight and coke.

Combined process for the separation and continuous coking of high

Oil-containing solids are dried and heated by contacting them in a drying zone with superheated steam admitted to the zone at a temperature in excess of 200.degree. C. The heated solids may be distilled to remove hydrocarbons therefrom and the resulting proceduce and/or combustion products of the distillation or other combustion products are used to heat a mixed vapor remainder, after separation of said carbon from the vapors formed during the drying, to the temperature of 1200.degree. C. for recirculation to the drying zone.

Process of drying and heating oil-containing solids

The dry distillation of oil shale and like volatilizable materials as carried out by intimately mixing it with a fine-grain hot heat-transfer medium. According to the invention the hot distillation residue is passed in direct heat exchange with a cooling gas and the latter is utilized as one component of a preheating mixed gas which is passed in uniflow with the devolatilizable material through at least one riser. Hot combustion gases can make up other components of these mixed gases.

Method of dry distillation of volatile substances from mineral matter

Devolatilizable fine-grained material which contains hydrocarbons is devolatilized by means of fine-grained solids which have been heated to temperatures of about 500.degree. to 1000.degree. C. The devolatilizable fine-grained material is mixed with the heated solids and is thus heated to temperatures of about 400.degree. to 900.degree. C. The mixture is passed through a dwell zone, and gaseous and vaporous devolatilization products are withdrawn and cooled. The heated solids are fed to the dwell zone as a loosened stream in a trickling and/or agitated state of motion, and the devolatilizable fine-grained material is introduced into said stream in order to be admixed thereto. The heated solids and the devolatilizable fine-grained material can be mixed in a weight ratio of 3:1 to 12:1. The stream of trickling heated soids can be deflected at least in part.

Equipment for devolatilizing devolatilizable fine-grained material by

Devolatizable fine-grained material which contains hydrocarbons is devolatilized by means of fine-grained solids which have been heated to temperatures of about 500.degree. to 1000.degree. C. The devolatilizable fine-grained material is mixed with the heated solids and is thus heated to temperatures of about 400.degree. to 900.degree. C. The mixture is passed through a dwell zone, and gaseous and vaporous devolatilization products are withdrawn and cooled. The heated solids are fed to the dwell zone as a loosened stream in a trickling and/or agitated state of motion, and the devolatilizable fine-grained material is introduced into said stream in order to be admixed thereto. The heated solids and the devolatilizable fine-grained material can be mixed in a weight ratio of 3:1 to 12:1. The stream of trickling heated solids can be deflected at least in part.

Process for devolatilizing devolatilizable fine-grained material by

A process for heating fine-grained solids, especially carbonaceous solids such as coke or oil shale, by a process wherein solids are heated to 500.degree. to 920.degree. C. in direct contact with hot gases in a plurality of heating stages, the last of which is a fluidized bed heating process.

Method of heating fine-grained solids

A process of cooling hot granular solids which are at temperatures from about 400.degree. to 1300.degree. C., which comprises maintaining solids in an agitated or trickling state in a cooling zone, causing air to rise through the cooling zone in direct contact with the solids, and utilizing at least part of the sensible heat of the solids so dissipated.

Process of cooling hot granular solids

A method and apparatus for cooling dustlike or fine-grained reaction residue emanating from a reactor is disclosed. According to the method reaction residue emanating from a reactor passes downwardly into a cooling shaft where it is maintained in the form of a pile of bulk material under a gas pressure of 20 to 200 bars while cooling gas passes upwardly through said cooling shaft in counter-current and is removed at the top of said cooling shaft into the reactor. The apparatus comprises means for effecting cooling of such reactor residue.

Method for cooling dustlike or fine-grained solids

Solids and a clear liquid phase are separated and recovered wherein the solids are suspended in high boiling liquids. The sludge phase is separated from the liquid phase. A separate liquid phase which has a higher density than the liquid content of the sludge phase is added to the dispersion to be separated or to the sludge phase and the resulting mixture is centrifuged to separate the solids from the liquid phase.

Process and separating and recovering solids and clear liquid phase from

The present invention relates to a process for the recovery of hydrocarbonaceous materials from tar sand comprising subjecting a part of the tar sand to hot water extraction by mixing it with hot water, the solids and bitumen being separated and the latter treated further, and carrying out a dry distillation of another part of the tar sand which is thereby heated to temperatures above 400.degree. C, the gaseous and vaporous distillation products being cooled and condensed. This process is characterized in that at least a portion of the thermal energy required for hot water extraction originates in the dry distillation waste heat. This process is further characterized in that the solid coke-like residue recovered from the further treatment of the bitumen from hot water extraction is used as fuel in the dry distillation and in that the wet solids recovered from hot water extraction are mixed with the dry distillation residue to form a solid product which can be transported on belt conveyors.

Recovery of hydrocarbonaceous material from tar sands

A dry distillation process for treating bituminous or oil-containing fine-grained material, particularly tar sand, with a heat carrier comprising fine-grained dry distillation residue which is heated in a pneumatic conveyor line by hot combustion gases and then fed to a collecting vessel and mixed in a dry distillation zone with the fine-grained material to be subjected to dry distillation. The dry distillation residue is heated to a temperature of 600.degree.-850.degree. C before being mixed at least in part with the material which is to be subjected to dry distillation, said material containing at least 0.2% by weight magnesium carbonate and/or calcium carbonate.

Process for treating bituminous or oil-containing material using dry

Solids are separated from solids-containing, high-boiling hydrocarbons by mixing a lower-boiling liquid diluent with the solids-containing, high-boiling hydrocarbons, clarifying the mixture to separate same into a solid-enriched phase and a low-solids liquid phase, separating the high-boiling hydrocarbons from the low-solids phase by distillation, and recovering and reusing the diluent. The high-boiling hydrocarbons can be heavy oil or heavy tar from the thermal treatment of hard coal, brown coal, tar sands, oil shale or the like.

Process for separating solids from high-boiling hydrocarbons in a

Fine-grained fuels such as coal are continuously degasified by a process wherein a fine-grained degasified residue is recirculated as a heat-carrying medium and is heated in a pneumatic conveyor line and then fed to a collecting vessel. A first partial stream of the heat-carrying medium is fed through a mixing zone together with the fuel to be subjected to dry distillation. A second partial stream of the heat-carrying medium is fed to a secondary degasification zone together with the mixture comprising the dry distillation residue. Volatile constituents are distilled from the mixture in the mixing zone and the secondary degasification zone and are fed to dust-collecting and condensing means. Degasified residue is recirculated to the pneumatic conveyor line. The ratio of the rate of the second partial stream fed to the secondary gasification zone to the rate of the first partial stream of the degasified residue, which first partial stream is fed to the mixing zone for the dry distillation of the fuel, is between 0.2:1 and 15:1. The second partial stream is mixed with the dry distillation residue before the second partial stream is fed to the secondary degasification zone and degasified residue dust is discharged in a particle size of more than 75% below 0.3 mm.

Process for degasifying fine-grained fuels

Lump fuels are continuously coked at a high temperature above 750.degree. C in a shaft oven with direct heating by a hot scavenging gas which is produced by a partial combustion of the coking gas and conducted through the shaft oven in a countercurrent to the lump fuel. A reactive carbonaceous material is added to the hot scavenging gas before it enters the high-temperature coking zone and reacts with the gasifying agents (carbon dioxide and water) contained therein before it is introduced into the shaft oven.

Continuous coking process

Fine-grained coke is produced by the degasification of fine-grained coal by a process which includes the following steps:

Growing community of inventors

Konigstein, Germany

Roland Rammler