【Ten Years of Rapid Development in Chemical Equipment】From 1985 to 2023, Guangdong Refining and Chemical Industry built the longest liquid sulfur transmission pipeline among domestic chemical enterprises
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The chemical processing industry has seen significant development over the past decade; let’s celebrate the prosperity and strength of modern China. Wishing everyone a happy New Year, and may their families be safe and healthy. By contributing our ideas, we can create a more lively discussion environment. HaiChuan becomes even better with your participation – we invite everyone to engage more actively in discussions on this forum. ********************************************** At 10 a.m. on February 6, 2023, the sulfur solidification unit at Sinopec’s Guangdong Petrochemical project in Jieyang began producing solid sulfur, reaching a design capacity of 100 tons per hour. This marks the completion of the longest liquid sulfur transportation pipeline operated by a domestic chemical company, enabling the exported of this sulfur product.
It is reported that the liquid sulfur long-distance pipeline put into use this time is 4,200 meters in length, with a designed diameter of 200 millimeters. It utilizes the skin effect electric heating technology, making it the longest liquid sulfur transmission pipeline equipped with this technology in China. According to Sinopec Guangdong Petrochemical Branch, the sulfur recovery unit is an environmental protection facility designed as part of the project to optimize and upgrade the refinery product portfolio at Guangdong Petrochemical. It is used to treat the acidic gases and acidic wastewater generated by the processing units, while also producing sulfur in finished form. The reporter learned that in order to ensure the fluidity of liquid sulfur products, the pipeline temperature of this system needs to be maintained at around 130°C to 160°C. The surface heating system enables real-time temperature monitoring, and it offers greater reliability in maintaining a constant temperature compared to steam heating. The one-time investment cost of the skin-effect electric heating system is 6% lower than that of steam heating, while its operating costs are more than 10% lower compared to steam heating. Last December, the sulfur recovery complex was put into operation successfully during its initial trial run, and nearly 7,000 tons of liquid sulfur have been produced to date. In the future, it will be sold to the chemical products market in South China in packages of 50 kilograms or by ship as bulk cargo.
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