Synthetic process method of high-density hydrocarbon

Abstract

The invention discloses a synthetic process method of high-density hydrocarbon. The synthetic process method comprises the following steps of the first step, hydrogenation of a raw material, industrial grade dicyclopentadiene raw material of which the mass percent is 85 percent is adopted for a hydrogenation reaction, meanwhile a separate-out distillation method is adopted to refine endo-tetrahydrodicyclopentadiene; the hydrogenation reaction is performed on the raw material on a bed layer filled with a metal catalyst; the hydrogen-oil ratio is (300 to 1000):1; the space velocity is 5-25h<-1>; the inlet pressure of a hydrogen reactor is 1.2 to 2.2 MPa; the inlet temperature of the reactor is 100 to 140 DEG C; the second step, a space isomerization reaction is adopted to generate an exo-tetrahydrodicyclopentadiene product; a molecule space isomerization reaction of an intermediate product is catalyzed by chloro metal; an inert solvent is adopted as an isomerization solvent; the reaction temperature is 70 to 150 DEG C; the reaction time is 1 to 3h; distillation separation is performed on the inert solvent under the condition of 80 to 85 DEG C to refine the high-density hydrocarbon. Compared with other processes, the liquid yield of the exo-tetrahydrodicyclopentadiene prepared by the synthetic process method is about 99 percent, the space velocity is higher, i.e. the charging rate is higher, and the production efficiency is higher.

Description

technical field

[0001] The application relates to a synthesis process for high-density hydrocarbons, which belongs to the field of petrochemical technology. Background technique

[0002] High-density hydrocarbons, that is, high-efficiency fuel products, are a type of polycyclic hydrocarbon compounds, which have the characteristics of high density, high calorific value, and high stability. With the increase of energy supply, it has become an indispensable fuel for the aerospace industry. The high-density hydrocarbon fuels that have been used are mostly a mixture of several fuels and additives, except for a few single compounds. The high-density hydrocarbons synthesized by traditional techniques are generally mixed in liquid and solid phases, the liquid phase yield is generally about 60%, and the remaining components are solid phase bridged tetrahydrodicyclopentadiene. As a high-energy fuel, the calorific value of solid is relatively low, and its application is inconvenient....