摘要:
The invention relates to a process for the production of binders by calcinating mineral raw material mixtures. In order to improve the process and the quality of the binders, it is proposed that oil shale and/or oil sand fills are converted by targeted agglomeration into particles of a certain size and consistency, wherein the water content for the mechanical stabilization of the agglomerate is adjusted to less than 25 percent and the agglomerates are calcinated to form binders at temperatures between 800 and 1500° C. under reductive conditions over the entire process with a Lambda value
摘要:
The present invention relates to a method for the energy-efficient and environmentally friendly obtention of light oil and/or fuels on the basis of crude bitumen from oil shales and/or oil sands (1) by thermal use of carbonaceous residues which are obtained during this process, whereby the carbonaceous residues are converted at temperatures below 1800° C. into sulfur-poor, gaseous cleavage products (31) by sub-stoichiometric oxidation with oxygen-containing gas in an updraft gasifier (19) which is operated with a bulk material moving bed while alkaline substances are added. The cleavage products are then converted into sensible heat by hyperstoichiometric oxidation and are used for the production of heated aqueous process media (2) for physically comminuting the oil sands and/or oil shales (1) and/or for separating of the crude bitumen (7) from the rock material and/or as process heat for the thermal fractioning (12) of the crude bitumen (7).
摘要:
The invention relates to a process for the production of binders by calcinating mineral raw material mixtures. In order to improve the process and the quality of the binders, it is proposed that oil shale and/or oil sand fills are converted by targeted agglomeration into particles of a certain size and consistency, wherein the water content for the mechanical stabilization of the agglomerate is adjusted to less than 25 percent and the agglomerates are calcinated to form binders at temperatures between 800 and 1500° C. under reductive conditions over the entire process with a Lambda value
摘要:
The method is used to obtain metals, noble metals, and rare earth metals from scrap. The aim of the invention is to provide a method that allows an efficient recovery even from electronic scrap. This is achieved in that the scrap and carbon-containing materials (A) are oxidized with oxygen containing gases (11) in the presence of alkaline materials under overall reducing conditions with an overall lambda of
摘要:
The method is used to obtain metals, noble metals, and rare earth metals from scrap. The aim of the invention is to provide a method that allows an efficient recovery even from electronic scrap. This is achieved in that the scrap and carbon-containing materials (A) are oxidized with oxygen containing gases (11) in the presence of alkaline materials under overall reducing conditions with an overall lambda of
摘要:
The apparatus serves to thermally separate carbon-rich substances in a moving bed reactor (1) through which a bulk material (6) passes. A vertical bulk material column (5) for supplying the material is supplemented by a bulk material column for removing material, wherein the widths and heights of the bulk material columns (5, 13) and the composition of the bulk material (6) are selected in such a manner that sealing of the interior of the reactor is brought about by an internal pressure loss in the columns (5, 13). At the same time, a stream of bulk material is made possible, wherein a first cavity (11) is provided in the upper reactor region and a second cavity (9) is provided in the lower reactor region, between which cavities a differential pressure Δp of at least 50 mbar is provided, said differential pressure being stabilized by the pressure loss via the fill.
摘要:
The invention relates to a method for the continuous obtention of synthesis gas by the direct gasification of carbon fractions contained in oil sands and/or oil shales in a vertical process chamber (2) having a calcination zone and an oxidation zone (6), in which the calcinated, fractions rich in carbon oxidize with oxygen-containing gas. The gaseous reaction products are withdrawn at the top of the vertical processing chamber (2) that has the shape of a vertical shaft furnace which is continuously flown through from the top to the bottom by a bulk material which itself is not oxidized. Oxygen-containing gas (10) is at least partially introduced beneath the oxidation zone, whereby the rising gas flow is facilitated. The bulk material is at least partially provided by the natural inert rock content in the oil sands and/or the oil shales. Added alkaline substances convert under reductive conditions the gaseous sulfur compounds, which were obtained at temperatures above 400° C. from the constituents of the oil sands and/or the oil shales, by chemical reaction into solid sulfur compounds which are at least partially discharged with the gaseous reaction products and are removed from the gas phase at temperatures above 300° C. by fine material separation (18).