Action of Water Vapor in the High-Temperature Hydrogenation of a Mixture of Coke-Plant Benzene and the Naphthalene Fraction of Coal Tar
- Authors: Kairbekov Z.K.1,2, Smagulova N.T.1,2, Maloletnev A.S.3
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Affiliations:
- Al-Farabi Kazakh National University
- Research Institute of New Chemical Technologies and Materials
- Moscow Mining Institute, Moscow Institute of Steel and Alloys
- Issue: Vol 62, No 12 (2019)
- Pages: 593-597
- Section: Chemistry
- URL: https://journals.rcsi.science/1068-364X/article/view/227013
- DOI: https://doi.org/10.3103/S1068364X19120056
- ID: 227013
Cite item
Abstract
Abstract—In the catalytic high-temperature hydrogenation (hydrodealkylation) of a mixture of raw coke-plant benzene and the 180–230°C naphthalene fraction of coal tar, water vapor (steam) acts in two ways: it blocks the smallest pores in the catalyst, from which the removal of products is difficult; and it facilitates their desorption from the large pores, thereby decreasing the likelihood of polymerization of the reactive products of intermediate hydrocracking and dealkylation. Steam is found to play a positive role in slowing the formation of high-molecular compounds, which are sources of coke deposits on the catalyst.
About the authors
Zh. K. Kairbekov
Al-Farabi Kazakh National University; Research Institute of New Chemical Technologies and Materials
Author for correspondence.
Email: zh_kairbekov@mail.ru
Kazakhstan, Almaty; Almaty
N. T. Smagulova
Al-Farabi Kazakh National University; Research Institute of New Chemical Technologies and Materials
Author for correspondence.
Email: nazym2011@inbox.ru
Kazakhstan, Almaty; Almaty
A. S. Maloletnev
Moscow Mining Institute, Moscow Institute of Steel and Alloys
Author for correspondence.
Email: anstanmal@mail.ru
Russian Federation, Moscow