"FTH" is also known as "a complete set of industrial technology for hydrogenation of medium and low-temperature coal tar full fractions and high production of middle distillates". This technology was developed by Shaanxi Coal and Chemical Co., Ltd. Shenmu Fuyou Energy Technology Co., Ltd. It is the first in the world and is at the leading level. The company's first 120,000 tons/year coal tar full fraction hydrogenation industrialization demonstration project has been successfully operated. On April 27, 2013, the China Petroleum and Chemical Industry Federation organized and held a scientific and technological achievement appraisal meeting in Beijing for the "Medium/Low Temperature Coal Tar Full Distillation Hydrogenation and Multi-Production Middle Distillate Complete Industrialization Technology (FTH)".
FTH technology relies on self-developed national invention patents for "Electric Field Purification Method of Coal Tar" and "Coal Tar Hydrogenation Modification Reaction Unit", and "Three-phase Separation of Coal Tar Catalytic Hydrogenation of Oil" "Device" utility model patent, deep-processing, hydrogenation and modification of medium and low-temperature coal tar to produce diesel fractions, gasoline fractions and by-products that meet national standards.
One of the major innovations in FTH technology lies in the pretreatment technology of medium and low temperature coal tar. First, the quinoline insoluble matter in the coal tar is removed through a special metal filter, and then the metal ions and moisture such as calcium, magnesium, iron, and sodium in the coal tar are removed with the help of electric field purification facilities to increase the yield of coal tar.
FTH technology is based on the structural characteristics of coal tar and independently develops a series of multifunctional catalysts such as hydrogenation pretreatment, hydrorefining, hydrodearomatization, and hydrocracking, as well as multi-unit and multi-bed combined reactions. The device and internal components adapt to the characteristics of the coal tar hydrogenation reaction of condensed ring aromatic hydrocarbons and high olefins, effectively control the reaction temperature rise, meet the needs of the high exothermic reaction of coal tar hydrogenation, and solve the problem of hydrogenation of asphaltenes in coal tar. Conversion problem.
FTH technology first removes quinoline insoluble matter in coal tar through a special metal filter, and then uses electric field purification facilities to remove calcium, magnesium, iron, sodium and other metal ions and moisture in coal tar to improve coal quality. The tar yield, among which the purified coal tar yield is more than 98%, the quinoline insoluble matter, salt and water removal rate is more than 95%, and the iron removal rate is 70.6%, achieving true full-distillation hydrogenation.
FTH Technology has independently developed a series of multifunctional catalysts such as hydrogenation pretreatment, hydrorefining, hydrodearomatization, and hydrocracking based on the structural characteristics of coal tar, as well as multiple and multi-bed combined reactions. The reactor and internal components adapt to the characteristics of the coal tar hydrogenation reaction of condensed ring aromatic hydrocarbons and high olefins, effectively control the reaction temperature rise, meet the needs of the high exothermic reaction of coal tar hydrogenation, and solve the hydrogenation and conversion of asphaltenes in coal tar. difficult problem. The continuous operation results of the device show that the hydrogenation process configuration is reasonable and the middle distillate yield is high.