T/SXCIA 001-2024 Industrial-grade dimethyl sulfide

Scope

Scope: This document specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of industrial-grade dimethyl sulfide. This document applies to industrial-grade dimethyl sulfide produced by the reaction of hydrogen sulfide and methanol. Main technical content: 1. This standard is drafted with reference to the "National Food Safety Standard - Food Additives - Dimethyl Sulfide" (GB 28339-2012), and taking into account the current situation and future development direction of industrial-grade dimethyl sulfide production, technology, quality control, and downstream demand at home and abroad. 2. The dimethyl sulfide content in the product shall be ≥99.95%; the hydrogen sulfide conversion rate shall be ≥98%; the dimethyl sulfide selectivity shall be ≥96.5%; and the production cost and energy consumption shall be lower than those of traditional processes. 3. High-efficiency catalysts achieve efficient conversion of hydrogen sulfide under relatively low-temperature and low-pressure reaction conditions, reducing energy consumption and production costs. 4. System integration and process optimization are achieved, with multiple links such as hydrogen sulfide tail gas treatment, methanol feeding, reaction control, and product separation and recovery closely connected to form a green process of closed-loop production. 5. While solving the environmental protection problem of hydrogen sulfide tail gas in the CS2 production process, the economic and environmental benefits are improved through the high-value utilization of tail gas.

Development Information

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