Southeast University

Rui Xiao

Huiyan Zhang

Chao Liu

Bo Peng

Weicong Xu

Yong Zhang

Yuan Liu

Siyu Wang

Ming Lei

Jiajun Yu

Jiahuan Xu

Xiangchen Kong

Yuyang Fan

Peijun Li

Ziwei Wang

Beichen Xue

Shuping Zhang

Sheng Chu

Yinhai Su

Jiawei Wang

Dekui Shen

Qi Cao

Feng Gong

Yujie Tao

Yi Gao

Shipeng Ding

Shiliang Wu

Tao Li

Provided are an oxygen-vacancy-rich MoO/ZrOcatalyst and a preparation method and its application in hydrodeoxygenation of a biomass gas-solid system. The method includes the following steps: (1) dissolving zirconyl nitrate and ammonia water in de-ionized water respectively and then mixing fully and performing aging, cooling, filtering, washing and drying to obtain a solid powder and calcining the solid powder to obtain ZrOsolid; (2) adding ammonium molybdate tetrahydrate into de-ionized water for dissolution, stirring and dropwise adding into the ZrOsolid, and mixing to make loading uniform, and then drying to obtain a solid, and then grinding and calcining the solid to obtain MoO/ZrOpowder; (3) adding a Pt precursor into de-ionized water for dissolution, and dropwise adding into the MoO/ZrOpowder and stirring to make loading uniform, and then drying to obtain a solid, and then grinding and calcining the solid to obtain the Pt—MoO/ZrOcatalyst.

Oxygen-vacancy-rich MoO/ZrOcatalyst and preparation method and application thereof in hydrodeoxygenation of biomass gas-solid system

A low-temperature plasma regeneration system and a low-temperature plasma regeneration method is for inactivated activated carbon, wherein the system comprises a gas supply system, a plasma reaction apparatus and a waste gas treatment apparatus, wherein the gas supply system is configured for supplying gas and water vapor; the plasma reaction apparatus comprises a top electrode, a grounded lower electrode, a regeneration reactor arranged between the electrodes, and a high-voltage alternating current power supply connected with the top electrode; a stirrer is arranged in the regeneration reactor, a gas inlet is arranged at the center position of the top of the reactor, and gas outlets are arranged around the reactor. The system of the present invention has a simple and compact structure, a convenient operation and a function of reaction-and-premix integration.

Low-temperature plasma regeneration system and method for inactivated activated carbon

The provided is energy storage method and device for biomass cascade pyrolysis coupled with new energy power generation. The key point of the technical solution is that, with inexpensive, clean and safe biomass as energy storage medium, the redundant unstable electric energy is converted by a cascade pyrolysis energy storage system into an easy-to-store liquid and solid chemical energy in biomass pyrolytic products, and based on use requirements, can be further converted into clean fuels for power generation or exported renewable chemicals, so as to realize continuous stable output of the new energy power generation systems. Furthermore, the cascade pyrolysis energy storage system can, based on the principle of 'energy level matching', fully recover and utilize the electric energy, high-temperature heat energy and low-temperature heat energy generated in pyrolysis processes, thereby maximizing the energy utilization efficiency of the system.

Energy storage method and device for biomass cascade pyrolysis coupled with new energy power generation

The present disclosure relates to a pyrolysis bio-oil fractional condensation device and method capable of cooling medium self-circulation. The device includes a primary condensation system, a secondary condensation system and a cooling medium self-regulation heat exchange system. The primary condensation system uses the temperature-regulated cooling medium to condense the macromolecular tar by direct heat exchange with the pyrolysis volatiles. The condensed tar is heated, pushed and scraped with a rotary mechanism to prevent adhesion. The spray liquid in the secondary condensation system exchange heat with the uncondensed volatiles directly for secondary condensation. The cooling medium self-regulation heat exchange system realizes self-circulation and self-balance of the cooling medium mass flow and energy flow by integrating heat absorption during biomass raw material feeding and drying, heat release during volatiles condensation, and heat absorption during pyrolysis char cooling, and realized the independent operation of the condensation device in the mobile biomass pyrolysis system.

Pyrolysis bio-oil fractional condensation device and method capable of cooling medium self-circulation

A pyrolysis vapor outlet anti-coking device of adsorbing medium self-recycling regeneration includes a particle flow adsorbing system and a medium burning regeneration recycling system in mutual communication. The particle flow adsorbing system is configured to enable an easy-to-coke component to be adsorbed on an outer surface of an adsorbing medium to form a coking layer, and convey the a coking adsorbing medium into the medium burning regeneration recycling system. The medium burning regeneration recycling system is configured to quickly burn the coking layer on the outer surface of the adsorbing medium to realize regeneration of the adsorbing medium and convey the regenerated adsorbing medium into the particle flow adsorbing system for recycling use.

Pyrolysis vapor outlet anti-coking device and method of adsorbing medium self-recycling regeneration

A biomass-based porous carbon composite material and preparation thereof and an application thereof in COadsorption are provided. In the biomass-based porous carbon composite material, with a pulping black liquid solid as a precursor, by arc treatment, porous carbon structures capable of physically adsorbing COand basic substances capable of chemically adsorbing COare obtained; with lignin in the precursor as the carbon source, and sodium hydroxide, sodium salts, and small-molecular carbohydrate degradation products in the precursor as the template and activator, porous carbon structures are obtained by arc thermal carbonization and self-activation; the basic substances are obtained by allowing sodium hydroxide and sodium salts in the precursor to undergo arc thermal decomposition. Further, the present disclosure relates to an application of the biomass-based porous carbon composite material in COadsorption.

Biomass-based porous carbon composite materials and preparation thereof and application in COadsorption

A system and method for COcapture and electroregeneration and synchronous conversion are provided. The system includes a COcapture subsystem, which uses an absorption liquid to capture COand generate a capture liquid; and a COelectroregeneration and synchronous conversion subsystem, including a cathode chamber provided with a cathode electrode, a sample inlet, and a sample outlet, an anode chamber having an anode electrode, a sample inlet connected to an outlet of the capture liquid of the COcapture subsystem, and a sample outlet connected to the sample inlet of the cathode chamber for introducing COregenerated by anodic oxidation into the cathode chamber for electroreduction, and a balance chamber in the middle having a sample outlet connected to an inlet of the absorption liquid of the COcapture subsystem. The system can perform self-circulation and stably operate, to capture, regenerate and convert CO.

System and method for CO2 capture and electroregeneration and synchronous conversion

The present invention discloses a rapid evaluation method for quality of lignin-pyrolyzed bio-oil and an application thereof, and particularly relates to a rapid evaluation method for quality of lignin-pyrolyzed bio-oil based on radical detection and an application thereof. The method can be used to evaluate the quality of lignin-pyrolyzed bio-oil by detecting the spin concentration of radicals in lignin char obtained by lignin pyrolysis, thus avoiding the complex processes involved in the evaluation for the quality of conventional pyrolyzed bio-oils such as, extraction, separation and detection and reducing the detection costs substantially. The detection method of the present invention is simple and easy to operate, thus achieving the rapid evaluation for the quality of lignin-pyrolyzed bio-oil. Moreover, the detection method of the present invention is non-contact detection without destructive samples, which is applicable to the rapid detection on the quality of lignin-pyrolyzed bio-oil in the field of industry and scientific research. The present invention further broadens the application fields of radical detection and contributes to the development of radical detection technology in the field of pyrolysis, and provides a reliable method for the detection of lignin-pyrolyzed bio-oil, which has good application prospect.

Rapid evaluation method for quality of lignin-pyrolyzed bio-oil based on radical detection and application thereof

A biomass-based long-chain alcohol ether oxygenated additive and a preparation method and application thereof are disclosed. The additive used agricultural and forestry wastes as raw materials, and has a general chemical formula of R&#x2014;(O&#x2014;C)&#x2014;R&#x2014;OH. The preparation method includes the following steps: step 1, performing drying pretreatment on biomass raw materials, performing rapid pyrolysis under an inert atmosphere to obtain a pyrolysis product containing water, gases, water-phase bio-oil and oil-phase bio-oil, separating out the water-phase bio-oil and performing catalytic hydrogenation on the water-phase bio-oil to obtain polyols; step 2, performing catalytic dehydration on the polyols obtained in step 1 under a basic catalyst system to obtain epoxyalkane; and step 3, making the epoxyalkane obtained in step 2 and methanol undergo a reaction under a molecular sieve catalyst and removing the solid catalyst by separation to obtain the long-chain alcohol ether oxygenated additive.

Preparation and application method of bio-based long-chain alcohol-ether oxygenate diesel additives

Devices and methods for preparing oxygen-containing liquid fuel by bio-oil catalytic conversion. A device includes a biomass fast thermal cracking system for preparing bio-oil, a bio-oil oil-water separating system for separating the bio-oil into oil phase bio-oil and water phase bio-oil that is output to an oil phase bio-oil chemical chain hydrogen production system, and a water phase bio-oil catalytic hydrogenation system. The hydrogen production system outputs produced hydrogen to the water phase bio-oil catalytic hydrogenation system to prepare a liquid fuel. A method includes the steps: thermally cracking the biomass to prepare bio-oil, separating the water phase and the oil phase, producing hydrogen from the oil phase bio-oil through a chemical chain method so as to provide a hydrogen source for the water phase bio-oil to carry out two-stage catalytic hydrogenation in a slurry bed, and separating and purifying the hydrogenated products to obtain an oxygen-containing liquid fuel.

Growing community of inventors

Jiangsu, China

Rui Xiao