Research Field
Principle and methodology of comprehensive cascaded utilization of energy; Mechanism of multi-energy hybridization and system integration; Efficient utilization of waste heat and low-carbon technologies.
Team Building
The laboratory currently has 16 researchers, including 6 senior positions and 5 associate senior positions, with 71 graduate students (including joint-program graduates).
Project and Major Achievement
The laboratory had 29 ongoing projects and got 11 new projects approved, including 4 National Key R&D Program projects and sub-projects, 2 Chinese Academy of Sciences Strategic Priority Research Program (Category A) subprojects, 1 National Natural Science Foundation of China General Program, 1 Major Local Science and Technology Demonstration Project, and 3 enterprisecommissioned projects. 4 projects have been completed and accepted.
In the research direction of distributed energy system, the laboratory completed the preliminary design of a multi-energy complementary MW-level modular distributed cascade energy utilization system, initiated the construction of the MW-level distributed demonstration project in the Songshan Lake International Innovation and Entrepreneurship Community, and completed the establishment of a pilot platform for the preparation and testing of efficient phase change cold storage materials, as well as a 1 ton refrigeration material cycle characteristics testing platform, overcoming challenges in material preparation and encapsulation technology.
For distributed energy system, a method and system for complementary hydrogen production from solar energy and natural gas were proposed. The deep utilization of energy and components is realized through thermochemicalelectrochemical integration. The hydrogen production efficiency is improved by about 7% with near-zero CO2 emission. Meanwhile, the mechanism of irreversible destructions formation during the process is revealed. The effects of oxygen partial pressure on hydrogen production efficiency for hightemperature solid oxide electrolysis cell were investigated, and an experimental bench for hydrogen production from SOEC has been built.
In the research direction of solar thermochemical and thermal power generation system integration, the key technology for natural gas water-based chemical looping hydrogen production is formed by tackling the whole chain of oxygen carrier material-reactor-hydrogen production system. We have successfully developed a prototype of a 1 Nm3/h scale moving bed natural gas water-based chemical looping hydrogen production unit, and completed continuous stable hydrogen production, with H2 yields ranging from 1.01 to 1.31 Nm3/h. The cycle of reduction-regeneration-oxidation reaction of hydrogen production by chemical loop and the key technology was validated.
The laboratory proposed a novel thermo-electrochemical coupling method for hydrogen production, decarbonization, and solar energy storage via synergistic complementation of solar energy and hydrocarbon fuels. This approach integrates solar-driven mid-temperature steam methane reforming with electrochemical H2 separation and in-situ CO2 capture. At 500℃ and
atmospheric pressure, near-complete methane conversion and decarbonization can be achieved, yielding a commendable net solar-to-H2 efficiency of 26.25% (more than 11 percentage points higher than that of solar photovoltaic-driven water electrolysis, with half of the hydrogen originating from water splitting).
An innovative approach has been proposed which entails a novel threestep solar thermochemical cycle for water splitting to produce hydrogen. This method significantly reduces the operating temperature from 1500°C to 850°C. A prototype of a kW-scale concentrated solar reactor based on this new method has been developed, and comprehensive cycle experiments have been conducted to validate its overall performance.
A concentrated solar thermochemical complementary conversion technology has been developed, and an efficient large-scale solar thermochemical receivers/reactors have been developed. These have been applied in the Zhangjiakou Renewable Energy Demonstration Zone, in a MW-level solar thermal and fuel thermochemical complementary energy supply demonstration system. The measured solar thermal-chemical conversion efficiency reached 64.9% (reporting the highest efficiency), and this technology has passed the achievement appraisal.
The laboratory proposed a method for hydrogen production from methane using concentrated solar light/thermochemical looping. Compared to thermochemical methods, this approach reduces reaction temperature and increases conversion efficiency, validating the theory of concentrated solar light/thermal coupling synergy.
In the research direction of low-energy-consumption CO2 capture at the origin of fuel conversion, the laboratory innovatively proposed the synergistic technology of coal pyrolysis/gasification for hydrogen production and decarbonization, completed the construction of a 30-kW external heating coal pyrolysis unit and a coke CO2 unit, obtained the regulation rules of coal classification gasification products, completed the design and construction of an integrated pilot plant for 3 tons/day external combustion coal pyrolysis dry quenching, signed a cooperation agreement with Chongqing Furan Co., Ltd. and implemented a flexible peak shaving demonstration project for a 300 MW power plant.
Patent and Paper
This year, the lab published 35 academic papers, including 17 journal papers indexed by Science Citation Index (SCI) and 3 journal papers indexed by Engineering Index (EI). The lab submitted 1 new PCT patent and 27 patents of invention. 1 patent of invention and 1 patent of software copyright were granted.
Dean: JIN Hongguang 86-10-82543032 hgjin@iet.cn
Deputy Dean: HAO Yong 86-10-82543150 haoyong@iet.cn
LIU Qibin 86-10-82543030 qibinliu@iet.cn
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