Tongji University

Tonji University

Lijie Yin

Dezhen Chen

Xiaobo Ma

Yuyan Hu

Pengfei Zhang

Xiaohu Dai

Lin Qiu

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.

Method and system for preparing fuel gas by utilizing organic waste with high water content

A system for hydrothermal reaction comprises a heater () including a circulating component for fluid flowing across and a heat source for heating fluid, and a reactor () including a heat preserving container in communication with the circulating component via pipes. A method for hydrothermal reaction comprises heating the fluid including the reactant and water for hydrothermal reaction, and feeding the heated fluid to the heat preserving container to perform the hydrothermal reaction.

System and method for hydrothermal reaction

A treatment process of persistent organic pollutants contained in particles is provided. Said process includes reacting persistent organic pollutant in particles under hydrothermal conditions in the presence of Feand Fe. Several beneficial effects can be achieved, including 1) no other additive is needed during the reaction process; 2) Feand Feare safe, cheap and extensive sources; 3) because Feand Feare dissolved, they can fully disperse into particles, and fully contact can be achieved, thus obtaining a decomposition rate no less than 70% of the persistent organic pollutants is under subcritical conditions.

Process for eliminating or reducing persistent organic pollutants contained in particles

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Shanghai, China

Lijie Yin