**Three coal chemical technology research projects will be launched
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On February 19, the Ministry of Science and Technology announced the second batch of projects under the **Key R&D Program, including 10 key initiatives such as the clean and efficient use of coal and new energy-saving technologies. “The special project on \"Clean and Efficient Utilization of Coal and New Energy-Saving Technologies\" focuses on 7 innovation chains (technical directions), namely efficient coal power generation, clean conversion of coal, control of pollution from coal combustion, carbon dioxide capture, utilization and storage (CCUS), recovery and utilization of waste energy in industry, energy conservation in industrial processes and equipment, and energy conservation in data centers and public institutions, and assigns 23 key research tasks to these areas. The first batch of coal clean conversion projects in 2016 included fundamental research on the direct conversion of low-grade coal and catalysis, key technologies for the selective conversion of coal pyrolysis gases into clean gas, as well as key technologies for the treatment, reuse, and resource utilization of wastewater generated from coal conversion. Below, the editor has compiled for you the research contents and assessment criteria for the three major technical sub-projects. Fundamental research on the direct conversion of low-metamorphic coal and related catalysis (basic research). Research topics include: studying the organic composition and mineral characteristics of low-metamorphic coal, as well as the molecular structure of its characteristic microcomponents and the mechanisms by which these affect the direct conversion process and its products; elucidating the reaction pathways involved in the direct conversion of coal and the mechanisms for controlling the properties of the resulting products; investigating the migration patterns of sulfur, nitrogen, halogens, alkali metals, and heavy metals during the direct conversion of coal into fuels and chemicals; developing new technologies for improving the quality of gaseous and liquid products obtained through direct conversion, as well as exploring the catalytic mechanisms for converting liquid products into high-quality liquid fuels and chemicals, along with the development of efficient catalysts for this purpose. Evaluation criteria: Develop a method that combines microscopic and molecular structure analysis to characterize the direct conversion properties of poorly metamorphosed coal, thereby establishing a technical foundation for new types of reactors, processes, and catalysts for coal direct conversion. Implementation period: 5 years. Number of projects to be supported: 1–2. Key technologies for the selective conversion of coal pyrolysis gas into clean gas (common key technologies category). Research contents: Develop new technologies for the high-temperature pyrolysis of low-rank coal to produce gasification coke, and study its mineral composition, ash characteristics, and gasification properties; develop new fixed-bed pressurized gasification technologies and equipment for such coke. Develop processes for the directional pyrolysis of low-rank coal to produce high-quality tar and hydrogen-rich pyrolysis gas, and complete reactor optimization and scale-up. Develop efficient dry desulfurization and low-temperature denitrification technologies and equipment for pyrolysis and coking flue gases. Evaluation criteria: Build a new-type gasification furnace with a capacity of 100 tons per day, using a pressurized fixed-bed gasification system, such that the lower heating value of the output gas is ≥11 MJ/Nm3; construct an industrial-scale pyrolysis unit with a capacity of over 100,000 tons per year, ensuring that the tar yield is greater than 80% of the yield calculated by the Gejin method, and that the dust content in the tar is ≤1.0%; the flue gas desulfurization efficiency must be ≥95% and the denitrification efficiency ≥85%, with these systems to be applied in pyrolysis and coking units with a capacity of millions of tons per year. Implementation period: 3 years. Number of projects to be supported: 1–2. Key technologies for the treatment, reuse, and resource utilization of coal conversion wastewater (common key technologies). Research topics: Exploring new approaches for the treatment and utilization of wastewater generated in coal chemical processes; developing technologies for converting high-concentration organic wastewater into water-coal slurry; researching efficient phenol extractants with low loss, and developing improved methods and processes for the simultaneous removal of phenol and ammonia; developing techniques for the advanced treatment of refractory organic pollutants through a combination of biological and chemical methods along with catalytic oxidation; developing high-performance, long-lasting membrane materials, processes, and equipment suitable for the concentration of saline wastewater; developing technologies and processes for the degradation of COD in highly saline wastewater, as well as for the removal of heavy metals and the separation of salts through fractional crystallization. Evaluation criteria: The total phenol removal efficiency via defenolization extraction must be ≥94%; the membrane concentration ratio must be ≥10 times, with a cleaning cycle of more than 3 months; the quality of the crystalline salt must meet the standards for industrial salt (GB/T5462). Implementation period: 3 years Number of projects to be supported: 1–2, Sinochem New Network
Looking forward to the day when it can be successfully applied!
**More support should be given to conducting such fundamental and common research.
This post was last edited by gasification001 on 2016-2-23 09:32. 2.2 Key Technologies for the Production of Clean Gas through the Differential Conversion of Coal Pyrolysis Gases (Common Key Technologies) Research topics include: developing new technologies for the high-temperature pyrolysis of low-rank coal to produce gasification coke, studying its mineral composition, ash properties, and gasification characteristics, as well as developing new fixed-bed pressurized gasification technologies and equipment for such coke; developing processes for the directional pyrolysis of low-rank coal to produce high-quality tar and hydrogen-rich pyrolysis gases, along with optimizing reactors and scaling up the processes; and developing efficient dry desulfurization and low-temperature denitrification technologies and equipment for pyrolysis and coking flue gases. Evaluation criteria: Build a new-type gasification furnace with a capacity of 100 tons per day, using a pressurized fixed-bed gasification system, such that the lower heating value of the output gas is ≥11 MJ/Nm3; construct an industrial-scale pyrolysis unit with a capacity of over 100,000 tons per year, ensuring that the tar yield is greater than 80% of the yield calculated by the Gejin method, and that the dust content in the tar is ≤1.0%; the flue gas desulfurization efficiency must be ≥95% and the denitrification efficiency ≥85%, with these systems to be applied in pyrolysis and coking units with a capacity of millions of tons per year. Implementation period: 3 years Number of projects to be supported: 1–2 – a key special project! The terminology used in research plans should be more precise; at the very least, it should reflect a serious attitude toward the project! Keep in mind **it’s real silver money being spent!** For coal, regardless of the type of pyrolysis—whether at high or low temperatures—the solid products formed already have established names: coke, semi-coke, or lignite. So how is gasified coke defined in this context? Coke produced specifically for gasification? Or coke as a gasification feedstock? Is it really necessary to be so forced? The gas generated during the coking process is generally referred to as coking gas or pyrolysis gas; so what is coking flue gas? Coke can be gasified in UGI furnaces, and it can also be gasified in Lu Strange furnaces; however, due to the differences in the properties of coke, the gasification products vary slightly, as does the composition of the ash, and the required gasification temperature differs. This is related to the adaptability of each coal type. Such a project is rather crude; where exactly are the scientific issues? Is it necessary to further improve the level of refinement? What directed pyrolysis? That’s even more ridiculous! The product composition varies depending on the pyrolysis conditions, as is well known in the industry. Is this considered research? It is hoped that these research results will be made public on schedule, so that the investments made in ** can benefit a wide range of professionals in this field, thereby contributing to the advancement of China’s coal chemical industry.
Looking forward to success soon. Also, we didn’t apply for any high-profile projects, but we did carry out a lot of practical work.
Semicoke has long been used in an industrial manner for pressurized solid slag discharge gasification of coal in China; one domestic coke company even conducted trial tests of coke using coal gasification, achieving success in doing so. What’s the point of developing a furnace with a capacity of 100 tons now?
What is the specific meaning of the additional requirement that \"the lower heating value of exported gas must be ≥11 MJ/Nm3\"?
The determination of this calorific value index is based on that established for existing fixed-bed gasification! It’s really advanced! ! !
In fact, the composition of the gas produced by existing fixed-bed dry ash removal gasification is greatly influenced by the quality of the raw coal; in particular, the methane content varies the most. It is likely to be difficult to achieve such a calorific value when using fixed-bed dry ash removal gasification for actual coke production. It is also necessary to thoroughly verify whether fixed-bed liquid slag discharge can be applied to coke!
Seeing so many great things, yet I can only sigh in frustration! Cheer yourself on! ! ! !