Chinese Academy of Sciences

Hui Hong

Hongguang Jin

Qibin Liu

Wei Han

Jun Sui

Hao Zhang

Jie Sun

Xiangyu Liu

Yong Hao

Yali Cao

Yawen Zhao

Wenjia Li

The present application provides a system and a method for water-based chemical-looping hydrogen generation. The method for water-based chemical-looping hydrogen generation comprises a water-based reduction process of oxygen carrier and a water-based oxidation process of oxygen carrier, wherein in the water-based reduction process of oxygen carrier, an oxygen carrier is reduced with a hydrocarbon fuel in the presence of a steam to produce a hydrogen gas as well as a reduced oxygen carrier and a carbon dioxide; and in the water-based oxidation process of oxygen carrier, the reduced oxygen carrier is oxidized with the steam to produce the hydrogen gas, while the reduced oxygen carrier is oxidized to its original state, thereby forming a chemical-looping. The present application can reduce the energy consumption while improving the efficiency of the hydrogen generation, enabling a zero energy consumption separation of carbon dioxide in the hydrogen generation process.

System and method for water-based chemical-looping hydrogen generation

The present disclosure provides a photovoltaic-photothermal reaction complementary full-spectrum solar utilization system, comprising:

Photovoltaic-photothermal reaction complementary full-spectrum solar utilization system

The present invention provides a distributed combined cooling, heating and power generating apparatus with an internal combustion engine by combining solar energy and alternative fuel and a method thereof, the apparatus comprising: an energy storage system for combined reaction between solar energy and alternative fuel, a solar fuel internal combustion engine generating system, a lithium bromide refrigeration system for absorbing exhaust heat of flue gas of solar fuel, a reaction device for recovering exhaust heat of flue gas, a heat exchanger for recovering exhaust heat of exhaust gas and a cylinder jacket and water plate heat exchanger. According to the present invention, solar energy is combined with alternative fuel to achieve conversion of solar energy to fuel chemical energy, such that solar energy is stored in form of synthesis gas fuel and combined with the combined cooling, heating and power generating system, which possesses high energy storing intensity, includes small volume of storing device, and achieve the objects of cooling, heating and power combination in low cost and high efficiency, thereby effectively solving the problem of difficulty in storage, and high cost and low efficiency in usage.

Distributed combined cooling, heating and power generating apparatus and method with internal combustion engine by combining solar energy and alternative fuel

The present invention provides a power generating system by combining medium-and-low temperature solar energy and fossil fuel with thermochemical process, the system comprising: a material supply device configured to store fossil fuel; a material mixing device configured to mix the fossil fuel with non-reacted reactant; a material metering device configured to control an amount of material fed to a material preheating device in unit time; a material preheating device configured to heat the material; a solar energy absorption and reaction device configured to drive the fossil fuel by using solar thermal energy absorbed to make a decomposition reaction or reforming reaction, through which the solar energy is converted to chemical energy of hydrogen-rich fuel, obtaining solar-energy fuel; a solar energy heat collecting device configured to collect the solar energy with low energy flux density to medium-and-low temperature solar thermal energy with high energy flux density, so as to provide heat to decomposition reaction or reforming reaction; a condenser configured to cool reaction products; a gas-liquid separating device configured to perform gas-liquid separation for the cooled mixture; a fuel bypassing device configured to adjust a proportion of solar-energy fuel for storage to that for generating; a gas storing tank to store solar-energy fuel; a power generating apparatus to burnt the solar-energy fuel to output power. The invention achieves a higher efficiency of usage of solar energy.

Power generating system and method by combining medium-and-low temperature solar energy with fossil fuel thermochemistry

Growing community of inventors

Beijing, China

Hui Hong