Breakthrough Progress in nuclear power PetroChina Mesoporous Molecular Sieve Technology

The successful development of high hydrothermal stability and high acid content mesoporous molecular sieve synthesis technology is a major breakthrough in the field of synthesis technology in the international mesoporous molecular sieve field. It is also a successful example for the scientific research work of SINOPEC to take the major breakthroughs in basic research as a guide and promote technological progress. The new materials not only create conditions for the application of mesoporous molecular sieves in catalytic cracking, hydrocracking and other refining catalysts, but also provide a new way to improve the reaction efficiency of catalytic processes such nuclear power as fine chemical industry and environmental protection, and have important scientific value for promoting the development of catalytic discipline and molecular sieve industry.

The development and application technology of mesoporous molecular sieves developed by China Petroleum and Petrochemical Research Institute has made breakthrough progress. Recently, it has been successfully applied in 1.2 million tons/year heavy oil catalytic cracking unit of Lanzhou Petrochemical Company. It has been recognized by the first-level novelty search agency that the FCC catalyst containing mesoporous molecular sieves has not been applied in nuclear power large-scale catalytic cracking units, indicating that the technical application level of SINOPEC has reached the forefront of the world in this field.

The development of new catalytic materials for macromolecular transformation of mesoporous molecular sieves has been an international problem. In recent years, the research on Synthesis Technology of mesoporous molecular sieves has been deepening, and remarkable achievements have been made nuclear power in basic theory and reaction process. However, three key problems that restrict the application of mesoporous molecular sieves have not been effectively solved: first, the amorphous structure of the pore wall of mesoporous molecular sieves directly leads to its harsh structure. Structural collapse under reaction conditions; the absence of four-coordinated Al in crystal structure as a source of acidic sites, resulting in inadequate acidic active sites; and the use of a large number of organic templates in the synthesis of mesoporous molecular sieves restricts their large-scale production.