초록 ▼

A process for producing hydrocarbons from biological sludge, wherein the sludge is treated at a temperature of from 300°to 600°C. and at a pressure of from 100 to 500 bar to cause cracking of the organic compounds present in the sludge, the sludge is simultaneously or immediately thereafter hydrogen

A process for producing hydrocarbons from biological sludge, wherein the sludge is treated at a temperature of from 300°to 600°C. and at a pressure of from 100 to 500 bar to cause cracking of the organic compounds present in the sludge, the sludge is simultaneously or immediately thereafter hydrogenated with hydrogen under the same pressure and temperature conditions in the presence of a catalyst, and thereafter the resulting gas phase is separated into its components by stepwise reduction of pressure and/or temperature; thereby disposing of the biological sludge without environmental damage and with the simultaneous recovery of hydrocarbons.

대표청구항 ▼

A process for producing hydrocarbons from biological sludge containing carbon and water, comprising: treating the sludge at a temperature of from 300°to 600°C. and at a pressure of from 100 to 500 bar whereby a charged water vapor phase containing at least one hydrogenatable substance is obtained; h

A process for producing hydrocarbons from biological sludge containing carbon and water, comprising: treating the sludge at a temperature of from 300°to 600°C. and at a pressure of from 100 to 500 bar whereby a charged water vapor phase containing at least one hydrogenatable substance is obtained; hydrogenating the charged water vapor phase under the same pressure and temperature conditions by mixing same with a quantity of hydrogen ranging from 2 to 25 weight percent of the carbon present in the sludge being treated and conducting the mixture over a fixed bed catalyst, the fixed bed catalyst being comprised of an acid component and a redox component, wherein the acid component is at least one compound selected from among Al2O3, SiO2, Fe2O3 and zeolite, and the redox component is at least one pair of compounds selected from among MoO3 with CoO and WO3 with NiO, and a total reaction time for the pressure-temperature treatment and hydrogenation being from 2 to 120 minutes and taking place as successive process steps, whereby a gas phase containing hydrogen, hydrocarbons and water is produced; and separating the gas phase into its components by reducing the pressure or temperature, or reducing both the pressure and temperature, said components being obtained in a plurality of fractions.