NB/SH/T 0952-2017 in English

The industry standard "Determination of Microactivity Index for Catalytic Cracking Catalysts" (NB/SH/T 0952-2017) was issued on December 27, 2017, and came into effect on June 1, 2018. This standard specifies the method for determining the microactivity index (MAI) of catalytic cracking catalysts, which is a critical parameter for evaluating the performance of catalysts in petroleum refining processes.

Catalytic cracking is a key process in the petroleum industry, where heavy hydrocarbon molecules are broken down into lighter, more valuable products such as gasoline and diesel. The microactivity index is a measure of the catalyst's ability to facilitate this cracking process, reflecting its efficiency and effectiveness. The MAI is determined by comparing the yield of cracked products obtained from a standard feedstock under controlled conditions.

The standard outlines the apparatus, reagents, and procedures required for the accurate measurement of the microactivity index. It includes detailed steps for sample preparation, reaction conditions, and product analysis. The method ensures that the results are reproducible and comparable across different laboratories, providing a reliable basis for quality control and catalyst selection in the refining industry.

By adhering to this standard, manufacturers and users of catalytic cracking catalysts can ensure that their products meet the necessary performance criteria, thereby optimizing the efficiency of the catalytic cracking process and enhancing the overall productivity of petroleum refineries.