At present, the most important technological catalytic cracking in the field of oil refining and chemical industry, all the catalysts used are molecular sieves, and the research abroad in this field has led several revolution in the world's refining industry. Recently, the reporter has learned that the molecular sieve research in China has made great progress in recent years. It has reached the international leading level in the fields of zeolite molecular sieve synthesis, mesoporous materials research and other fields. The Fifteenth International molecular sieve conference, which was first undertaken by our country, has been held in Beijing.
Porous molecular sieve catalysts are widely used in petroleum refining industry. In 1960s, the original Y zeolite molecular sieve made by UOP company in the United States was successfully applied to the catalytic cracking of petroleum to produce gasoline. Since then, the new reaction process based on the high activity and high selectivity of the porous molecular sieve catalyst quickly replaced the traditional catalytic cracking process with amorphous aluminum silicate as the catalyst, which not only increased the gasoline yield by 20%, greatly improved the crude oil utilization and quality of the oil, but more importantly, Y zeolite. The discovery of molecular sieves has changed the structure of human energy and the composition of chemicals.
Similarly, in the 70s of last century, the Mobil company of the United States invented the zem 5 zeolite, which also led to a revolution in petrochemical industry. In addition, porous molecular sieves have extensive separation performance. Long chain n-alkanes can be separated from petroleum and used to produce biodegradable detergent, such as detergent, detergent, soap and so on, so as to improve the living environment of human beings. Not only that, the unique structure and properties of porous molecular sieve material also make it have a very good application prospect in the field of hydrogen, methane and other energy storage, environmental protection and treatment, biomedicine and other high-tech fields, leaving a broad space for the authors of science and technology engaged in chemical and material science research.
Nowadays, the research of porous molecular sieve materials has become a hot topic in many disciplines, including chemistry, material science, physics and biology, and the research of porous molecular sieve is no longer limited to catalytic cracking, acid base catalysis and separation of small molecules in petrochemical industry, and presents to energy, materials and information. The trend of penetration and transformation in high and new technology fields. The application of porous molecular sieve materials has been expanded from the traditional fields such as adsorption, separation, catalysis and ion exchange to biomedicine, environmental protection and control, energy storage and so on. It has become an advanced material worth looking forward to.
In recent years, the synthesis, preparation and catalytic conversion of molecular sieve catalytic materials in China have also been paid great attention by the state. Since "75", a series of important projects of National Natural Science Foundation have been obtained, and the support of national climbing program and national major basic science projects has been made a series of emphasis. Large scale scientific and technological achievements, especially zeolite molecular sieve synthesis, mesoporous materials research and other fields are at the forefront of the world, and have a considerable position in the international academic community.
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