The present invention provides a method and system for preparing fuel gas by utilizing an organic waste with high water content. The method comprises the following steps: 1) providing an organic waste with high water content; 2) performing hydrothermal reaction by using the organic waste with high water content as a reactant to obtain a hydrothermal reaction product; 3) enabling the hydrothermal reaction product to generate steam, and separating a solid product and an oily liquid product in the hydrothermal reaction product; 4) performing gasification reaction by using the solid product, the oily liquid product and the steam as reactants to obtain a gasification reaction product; and 5) purifying the gasification reaction product to obtain clean fuel gas. The present invention further provides a system for preparing fuel gas. The method can be used for preparing clean fuel gas from the organic waste with water content of 60% or more.

A method is disclosed for recovering lipids from microbial biomass, and for producing lipids. In the method, an aqueous suspension includes fermentation broth containing oleaginous yeast biomass which is subjected to hydrothermal treatment and lipids are recovered from the biomass by solvent extraction.

A biomass-derived thermosetting polymer material being a product of processing a biomass feed material via a twin screw extruder having a length extending between an inlet and an outlet. Hot water from a water heater is injected into at least one inlet along the length of the twin screw extruder, the at least one inlet generally corresponding with a pressure boundary within the twin screw extruder. A pressure-sustaining valve is connected between the length of the twin screw extruder and the outlet, with the valve being adjusted to produce the biomass-derived thermosetting polymer material.

A system and method for torrefying a combination of biomass and biochar colloidal dispersion is provided.

A method of producing hydrochar from jackfruit peel biomass includes hydrothermal carbonization of jackfruit peel biomass by autoclaving at 150 C.-250 C. for about 3 hours to produce a hydrochar. The hydrochar can be activated by treatment with phosphoric acid (H.sub.3PO.sub.4), hydrogen peroxide (H.sub.2O.sub.2), or a combination thereof. The hydrochar produced according to the method is particularly effective at removing azo-dyes, and specifically methylene blue, from aqueous solutions such as industrial waste water.

A method of continuous hydrothermal carbonization of sludge containing organic matter, involving a stage of hydrothermal reaction carried out in a reactor (4), includes: a step of introduction of sludge in which the sludge is introduced into the reactor (4) by a first inlet (11), a step of endogenous injection of steam in which steam is injected into the reactor (4) by a second inlet (15) distinct from the first inlet (11), a step of extraction in which at least a portion of the sludge contained in the reactor (4) is extracted continuously by a sludge outlet (16), a step of preheating in which the temperature of the sludge is raised prior to its introduction into the reactor (4) up to a temperature of preheating greater than 70 C. Also disclosed is a device making it possible to carry out such a method.

The present invention concerns a process for the conversion of biomaterials into structural carbon products, particularly utilizing a hydrothermal treatment step that is carried out on a high molar mass organic starting material having a carbon content of >40 wt % of the dry matter. The invention also concerns a structural carbon product obtained using such a process, which has well-defined physico-chemical properties, e.g. in terms of surface area, carbon content, density, size and shape.

There is a process for the production of a liquid fuel and of a gaseous fuel from biomass. The biomass is sent to a pre-treatment section to form a homogeneous phase that can be moved and/or pumped, wherein inert parts are separated from the biomass and the biomass shredded and/or ground to reduce its size. The homogeneous phase obtained is then subjected to subcritical hydrothermal liquefaction at a temperature between 240 C. and 310 C. to form a liquefied phase. The liquefied phase is separated. After separation, the process continues in two alternative and mutually exclusive modes. In the first mode, the first aqueous phase is subjected to an anaerobic reaction with multiple stages producing biogas; the oily phase is separated into a bio-oil and a solid residue. In the second mode, the separate mixed phase is separated by density or dynamics forming a first aqueous phase, bio-oil and a gaseous phase. The first aqueous phase is subjected to a multiple-stage anaerobic reaction from which biogas, a muddy current and a second aqueous phase are produced.

A waste treatment system 100 for performing a hydrothermal treatment of wastes includes a hydrothermal treatment device 10 for performing the hydrothermal treatment by bringing steam into contact with the wastes, a storage facility 8, 9 for storing a fuel produced from a reactant of the hydrothermal treatment, and a heat recovery steam generator 18 for generating the steam to be supplied to the hydrothermal treatment device 10. The heat recovery steam generator 18 is configured to generate the steam by using a combustion energy generated by combustion of the fuel stored in the storage facility 8, 9.

An embodiment provides a method for recycling tires, including: injecting, using a pump, a rubber material into a dissociating system, wherein the pump exerts a mechanical force upon the rubber material to reduce a size of the rubber material; within the dissociating system, creating a rubber material mixture, by: injecting a supercritical fluid to be mixed with the rubber material; heating, using a heat source, the rubber material mixture; and atomizing the rubber material mixture; and sending the resulting atomized rubber material mixture to a separating system to separate the rubber material mixture into different components. Other aspects are described and claimed.