Method And Device For Producing Energy Products By Catalytically Cracking A Solid Hydrocarbon Material Without Coke Formation

Abstract: The invention relates to a method for producing at least one energy product (10) by catalytically cracking, at a low temperature, a fragmented solid material without the formation of coke, dioxins and/or furans, wherein a stream of a composition, referred to as a cracking dispersion, comprising: - a first oil, referred to as a cracking oil (2), which is inert against the catalytic cracking; - a fragmented solid material comprising at least one hydrocarbon compound; - at least one cracking catalyst; and - at least one alkaline compound; is brought to a temperature, referred to as the cracking temperature, of between 250°C and 350°C chosen so as to enable at least one gas energy product (10) to be produced by catalytically cracking at least one hydrocarbon compound of the fragmented solid material in the cracking dispersion; wherein the stream of the cracking dispersion at the cracking temperature is placed in a gas-tight cracking reactor (120) in contact with a gas atmosphere (14) at a pressure, referred to as the cracking pressure, that is lower than the atmospheric pressure, characterised in that the gas atmosphere (14) is maintained at the cracking pressure through gas-exchange communication between the gas atmosphere (14) of the cracking reactor (120) and the gas atmosphere of a device, referred to as a thermochemical vacuum pump (130), that generates a vacuum pressure formed, by way of a change of state, from an expanded gas state to a condensed liquid state, a second inert oil, referred to as a condensation oil (12), which is refluxed at a temperature higher than the evaporating temperature of the condensation oil (12) at the cracking pressure in the thermochemical vacuum pump (130), wherein the change of state of the condensation oil (12) from the expanded gas state to the condensed liquid state is brought about in the thermochemical vacuum pump (130) in a gas-exchange communication with the gas atmosphere (14) of the cracking reactor (120) and the condensation oil (12) is chosen so that its state-change temperature is at the level of the cracking temperature at the cracking pressure.

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