摘要:
A process for refining raw materials containing oil and/or bitumen includes supplying the raw materials to a reactor. The reactor is operated under a pressure of from 0.001 to 1 bar and at a reactor temperature of from 300 to 1000° C. so as to volatize fuel gases and obtain solids and non-evaporated fractions of heavy hydrocarbons. The solids and non-evaporated fractions of heavy hydrocarbons are introduced into a furnace. The non-evaporated fractions of heavy hydrocarbons are burned in the furnace at a furnace temperature of from 600 to 1500° C. so as to obtain hot solids in the furnace. The hot solids are recirculated from the furnace into the reactor. An oxidizing atmosphere of the furnace is separated from an atmosphere of the reactor by a sealing device.
摘要:
A process for refining raw materials containing at least one of oil and bitumen includes supplying the raw materials to a reactor and volatilizing fuel gas in the reactor at a temperature of from 300 to 1000° C. and a pressure of from 0.001 to 1 bar. Solids remaining in the reactor, including non-evaporated fractions of heavy hydrocarbons, are introduced into a furnace. A staged combustion of the non-evaporated fractions of heavy hydrocarbons is performed in a substoichiometric stage and in a superstoichiometric stage in the furnace at a furnace temperature of from 600 to 1500° C. as to obtain hot solids in the furnace. The hot solids are recirculated from the furnace into the reactor. A sealing device separates an oxidizing atmosphere of the furnace from an atmosphere of the reactor.
摘要:
For refining oil-containing solids, in particular oil sand or oil shale, there is proposed a process with the following steps: supplying the oil-containing solids to a reactor and expelling an oil-containing vapor at a temperature of 300 to 1000° C., supplying the oil-containing vapor expelled in the reactor to a cracker, in which the heavy oil components are broken down, separating the products obtained in the cracker and withdrawing the product streams, introducing the solids left in the reactor including the unevaporated fraction of heavy hydrocarbons into a furnace, burning the heavy hydrocarbons left in the solids in the furnace at a temperature of 600 to 1500° C., preferably 1050 to 1200° C., recirculating hot solids from the furnace into the reactor, wherein the oxidizing atmosphere of the furnace is separated from the atmosphere of the reactor by a blocking device.
摘要:
A process for refining oil-containing includes introducing the oil-containing solids to a reactor so as to expel an oil-containing vapor from the solids at a temperature of 300 to 1000° C. The oil-containing vapor expelled from the reactor is supplied to a cracker so as to crack heavy oil components of the oil-containing vapor. The cracked heavy oil components obtained in the cracker are separated and withdrawn from the cracker. The solids left in the reactor and an unevaporated fraction of heavy hydrocarbons are introduced into a furnace. The unevaporated fraction of heavy hydrocarbons in the furnace are burned at a temperature of 600 to 1500° C. The solids from the furnace are recirculated into the reactor. A conveying gas is supplied into a rising pipe, wherein the stream of solids withdrawn from the furnace is fluidized by the conveying gas and transported to the reactor through the rising pipe.
摘要:
A process for at least one of a chemical and a physical treatment of fluidizable substances in a reactor. The process includes introducing a hot gas into an interior of the reactor through a gas supply tube and cooling at least one of the hot gas and the gas supply tube with a coolant. The cooling is performed by contacting the hot gas with the coolant so as to provide a temperature of a wall of the gas supply tube at least 50° C. lower than a temperature of the gas at an inlet of the gas supply tube facing away from the interior of the reactor.
摘要:
A process for at least one of a chemical and a physical treatment of fluidizable substances in a reactor. The process includes introducing a hot gas into an interior of the reactor through a gas supply tube and cooling at least one of the hot gas and the gas supply tube with a coolant. The cooling is performed by contacting the hot gas with the coolant so as to provide a temperature of a wall of the gas supply tube at least 50° C. lower than a temperature of the gas at an inlet of the gas supply tube facing away from the interior of the reactor.
摘要:
A process for producing metal oxide from a metal salt includes supplying a first part of the metal salt to a hydrate drier so as to indirectly heat the first part of the metal salt in the hydrate drier using a heat transfer medium from a first stage of a multi-stage indirect cooler so as to dry the first part of the metal salt in the hydrate drier and so as to control a waste gas temperature of the process. A second part of the metal salt is guided as a partial stream past the hydrate drier. The metal salt is preheated in a first preheating stage and precalcined in a second preheating stage. The metal salt and a fluidizing gas having a temperature of 150° C. or less are supplied to a fluidized bed reactor so as to calcine the metal salt to form a metal oxide product. The metal oxide product is cooled in at least one suspension heat exchanger and then in the multi-stage indirect cooler.
摘要:
A process for producing metal oxide from metal salts includes cleaning a metal salt in a filter. After cleaning, the metal salt is dried in a drying apparatus. Steam is formed in the drying apparatus. The metal salt is preheated in at least one preheating stage. The metal salt is calcined to metal oxide in a fluidized-bed reactor. The metal oxide is cooled. The steam formed in the drying apparatus is recirculated into the filter.
摘要:
A process for producing metal oxide from a metal salt includes supplying a first part of the metal salt to a hydrate drier so as to indirectly heat the first part of the metal salt in the hydrate drier using a heat transfer medium from a first stage of a multi-stage indirect cooler so as to dry the first part of the metal salt in the hydrate drier and so as to control a waste gas temperature of the process. A second part of the metal salt is guided as a partial stream past the hydrate drier. The metal salt is preheated in a first preheating stage and precalcined in a second preheating stage. The metal salt and a fluidizing gas having a temperature of 150° C. or less are supplied to a fluidized bed reactor so as to calcine the metal salt to form a metal oxide product. The metal oxide product is cooled in at least one suspension heat exchanger and then in the multi-stage indirect cooler.
摘要:
A process for heat treatment of fine-grained mineral solids includes passing fine-grained mineral solids through a flash reactor so as to contact the fine-grained mineral solids with hot gases in the flash reactor at a temperature of 450 to 1500° C. so as to obtain hot solids. The hot solids arc passed through a residence time reactor at a temperature of 500 to 890° C. The hot solids are withdrawn from the residence time reactor after a residence time of 1 to 600 minutes. A waste gas of the residence time reactor is recirculated to at least one of the flash reactor and a preheating stage.