Method and device for producing energy products by catalytically cracking a solid hydrocarbon material without coke formation

A method for producing at least one valorization product, chosen in the group formed of short-chain fuel alkanes, alkenes, dihydrogen gas and carbon dioxide, by catalytically cracking at a low temperature a fragmented solid material without the formation of coke, dioxins and/or furans,

• Said method comprising the step of
• bringing to a temperature, referred to as the cracking temperature, a cracking dispersion composition having:
• a first oil, referred to a cracking oil, which is inert against the catalytic cracking,
• a fragmented solid material including at least one hydrocarbon compound,
• at least one catalytic cracking catalyst, and
• at least one alkaline compound,
• said cracking temperature, of between 250° C. and 300° C. inclusive, chosen so as to enable at least one gas valorization product to be produced by catalytically cracking at least one hydrocarbon compound of the fragmented solid material in said cracking dispersion;
• and
• the flow of said cracking dispersion at said cracking temperature is placed in a gastight cracking reactor and in contact with a gas atmosphere at a pressure, referred to as the cracking pressure, that is below atmospheric pressure;
• wherein the gas atmosphere is maintained at said cracking pressure through gas exchange communication between the gas atmosphere of said cracking reactor and the gas atmosphere of a device, referred to as a thermochemical vacuum pump, that generates a reduced 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, which is refluxed at a temperature above the evaporation temperature of said condensation oil at said cracking pressure in said thermochemical vacuum pump, the change of state of said condensation oil from the expanded gas state to the condensed liquid state is brought about in said thermochemical vacuum pump in gas exchange communication with the gas atmosphere of said cracking reactor, the condensation oil being chosen so that its state-change temperature is at the level of said cracking temperature at said cracking pressure.