T/SDMS 012-2024 Active Group standards

T/SDMS 012-2024 Gas separation membrane with fluorinated polyimide (FPI)

Publish Date: 2024-12-11 Implement Date: 2025-03-11 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/SDMS 012-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Other organic chemicals

Publish Date: 2024-12-11

Implement Date: 2025-03-11

Scope

Scope: This document specifies the fluorinated polyimide (FPI) models for gas separation membranes, technical requirements, test methods, inspection rules, marking, labeling, and accompanying documents, as well as packaging, transportation, and storage. Main technical content: Polyimide is used as the membrane separation material for gas separation membranes, which has high permeation selectivity, high thermal stability, easy solubility, and excellent film-forming performance. It is mainly used in oxygen-enriched and nitrogen-enriched applications, natural gas decarbonization, hydrogen-enriched natural gas hydrogen purification, and helium purification. Among them, in oxygen-enriched and nitrogen-enriched applications, the selectivity coefficient of O2/N2 is more than 6; in natural gas decarbonization, the selectivity coefficient of CO2/CH4 is more than 40; in hydrogen-enriched natural gas hydrogen purification, the selectivity coefficient of H2/CH4 is more than 140; and in helium purification, the selectivity coefficient of He/CH4 is more than 250. The above application indicators can better meet the application of fluorinated polyimide in the field of membrane separation.