HTF GB GB23971-2009 there are two, one is thermal oxidation stability Appendix C HTF HTF determination on quality changes in the course of, and the other is the thermal stability of the GB / T 23800, these two Test methods for oil heating process change carbon residue indicators should not play the role of a prospective predict. Especially thermal oxidation stability, at 175 ℃ * 72h after total HTF, also allow residue 50mg / 100g of existence, we think this is unreasonable, this residue is allowed to form carbon residue and sludge matrix. Different systems have different formulations performance results. Common sense, the whole base oil hydrogenation over national standard base can produce high-quality thermal oil products, but the result was a huge difference experiments. If these are not the ideal formula to determine HTF re-re-adjust the quality of the HTF bad recipe is completely extend the life of old HTF. The primary task is to make online renewable scrap HTF should no longer continue to carbon, high carbon dissolved in the system even before the formation of the HTF, rebuild cleaning system HTF system, conducting on-line (non-stop furnace) technology to be successful. But for different useful lives of HTF, HTF different systems are required to do first original recipe small test program to determine the amount, to the effect is obvious. HTF standard _ Fengqiu County Taihang Chemical (certified) _ Luoyang HTF provided by Fengqiu County Taihang Chemical Co., Ltd. Fengqiu County Taihang Chemical Co., Ltd. (www.hndaoreyou.com) Henan Xinxiang, fuel oil leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Fengqiu County Taihang Chemical Co. led the staff warmly welcome all inquiries negotiations to create Fengqiu County Taihang Chemical Co., a better future.