Steam cracking is a fundamental process in the petrochemical industry, converting hydrocarbons like ethane and propane into valuable olefins such as ethylene. However, this high-temperature process is prone to coke formation within the furnace tubes, leading to reduced heat transfer efficiency, increased pressure drop, and ultimately, costly shutdowns for decoking. Addressing this challenge requires effective solutions, and Dimethyl Disulfide (DMDS) is a leading choice for an anti-coking agent. NINGBO INNO PHARMCHEM CO.,LTD., as a dedicated manufacturer and supplier of DMDS in China, provides this critical chemical to help optimize your steam cracking operations.

The Challenge of Coke Formation in Steam Crackers

During the high-temperature pyrolysis of hydrocarbons, free radicals can react to form carbon deposits, or coke, on the inner surfaces of the cracking furnace tubes. This coke layer acts as an insulator, hindering efficient heat transfer from the furnace to the hydrocarbon feed. It also narrows the tube's internal diameter, increasing the resistance to flow and the required operating pressure. Beyond operational inefficiencies, coke deposition can lead to localized hotspots, potentially causing metal carburization and tube failure, resulting in unscheduled downtime and significant repair costs.

How DMDS Works as an Anti-Coking Agent

DMDS, with its chemical formula CH3SSCH3, is injected into the steam cracker feed. When exposed to the high temperatures within the furnace, DMDS decomposes to form hydrogen sulfide (H2S). This H2S then reacts with the metal of the furnace tubes, particularly iron, to form a protective layer of iron sulfide (FeS). This FeS layer is less prone to coking than the bare metal surface. By passivating the tube walls, DMDS significantly delays the onset of coke formation and deposition. This delay extends the furnace run length between decoking cycles, leading to improved operational efficiency, higher throughput, and reduced maintenance costs.

Your Source for High-Quality DMDS

For petrochemical facilities looking to secure a dependable supply of DMDS for their anti-coking needs, NINGBO INNO PHARMCHEM CO.,LTD. is your trusted partner. As a leading manufacturer based in China, we offer high-purity DMDS (CAS 624-92-0) at competitive prices. We understand the importance of a consistent and reliable supply chain for such critical process chemicals. Our commitment is to provide you with DMDS that meets rigorous quality standards, ensuring optimal performance in preventing coke formation and protecting your valuable furnace equipment. If you are seeking to buy DMDS or need to understand its price for bulk purchase, our team is ready to assist you.

Invest in the operational efficiency and longevity of your steam cracking units. Partner with NINGBO INNO PHARMCHEM CO.,LTD. for your Dimethyl Disulfide requirements and experience the benefits of a quality product from a reliable supplier.