CATALYTIC TECHNOLOGY FOR REDUCING THE CONTENT OF AROMATIC HYDROCARBONS IN MOTOR FUELS

Авторы

  • Massenova Alma Tulegenovna
  • Kalykberdiyev Maksat Kuatovich
  • Sass Alexander Sergeevich
  • Kenzin Nail Rashidovich
  • Abilmagzhanov Arlan Zainutallaevich
  • Baiken Amankeldi

Ключевые слова:

catalyst, hydrogenation, hydrodearomatization, aromatic hydrocarbons, diesel fraction.

Аннотация

The aim of the work was to study the process of hydrodearomatization of diesel fractions for the
production of environmentally friendly fuels with a low content of aromatic hydrocarbons. The hydrogenation of two
diesel fractions 180-350°C and 230-360°C of PKOP LLP (PetroKazakhstanOilProducts, Shymkent) has been
studied. Rh-Pt/Al2O3 catalysts were used in the work. The influence of the technological parameters of the process of
hydrodearomatization (hydrogen pressure 2-6 MPa, temperature 100-220°C) on the reaction rate, conversion and
aromatic hydrocarbon content at the “aniline point” was investigated. To increase stability and resistance to
poisoning with sulfur-containing compounds of petroleum fractions, the carrier was modified with chromium oxide
and synthetic zeolite ZSM-5, which led to an increase in the reaction rate and conversion of aromatic hydrocarbons.
Optimal conditions have been selected (temperatures 200-220°C, hydrogen pressure 4-6 MPa, solvent - ethanol,
propanol, isopropanol) for hydrogenation of diesel fractions 180-350°C and 230-360°C on Pt-Rh-catalysts supported
on alumina and mixed carriers. The content of aromatic hydrocarbons was reduced by 10-20%. Some operational
properties of diesel fuel (kinematic viscosity at 20°C, pour point and cloud point and density at 20°C) of the initial
diesel fractions and after catalytic treatment were determined, the effect of temperature and pressure on the change in
these characteristics was investigated.

Загрузки

Опубликован

2019-08-05

Как цитировать

Massenova Alma Tulegenovna, Kalykberdiyev Maksat Kuatovich, Sass Alexander Sergeevich, Kenzin Nail Rashidovich, Abilmagzhanov Arlan Zainutallaevich, & Baiken Amankeldi. (2019). CATALYTIC TECHNOLOGY FOR REDUCING THE CONTENT OF AROMATIC HYDROCARBONS IN MOTOR FUELS. Известия НАН РК. Серия химических наук, (4), 74–80. извлечено от https://journals.nauka-nanrk.kz/chemistry-technology/article/view/1355