Why don’t coal tar hydrogenation enterprises produce cycloalkyl specialty oils?
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Both the crude oil obtained from the direct liquefaction of coal and coal tar contain high levels of aromatics. After hydrogenation, their naphthenic content is relatively high. Then why isn’t naphthenic oil with higher prices produced (for use as transformer oil, refrigerant oil, oil for rubber, white oil for polystyrene, or lubricants with low pour points)? What are the main limiting factors? Some recent oil prices are attached for reference. KN4006 naphthenic rubber oil: 7,000 yuan per ton; 4060 naphthenic base oil: 6,900 yuan per ton. KN4010 Kunlun naphthenic rubber oil: 12,000 yuan per ton (10#); naphtha: 5,100 yuan per ton; gasoline: 5,800–6,320 yuan per ton; diesel: 4,780–5,150 yuan per ton (October 2015)
The \"Technology Roadmap for Key Areas of Made in China 2025\" states that: (1) For lubricants and greases, emphasis should be placed on the development and utilization of base oils, with increased use of high-quality base oils such as hydrogenated base oils, GTL base oils, and biodegradable base oils in applications related to engine oils, hydraulic oils, turbine oils, and lubricating greases； Increase the development and application of additives; carry out molecular design, development, and application of additive products such as antioxidants, viscosity index improvers, detergents and dispersants, and friction modifiers that meet the special performance requirements outlined by new environmental regulations, including low sulfur, low phosphorus, low ash content, low toxicity, biodegradability, and long service life. Developing proprietary formulae for universal products applicable to the most common industrial lubricants, including hydraulic oil, industrial gear oil, turbine oil, and grease ； Develop high-performance, long-lasting space lubricant products.