Heavy Naphtha Fractions 85-155 ̊C Recycling in the Catalytic Reforming Industrial Unit

Chernyakova, Ekaterina; Koksharov, Anton; Иванчина, Э. Д.; Yakupova, Inna V.

doi:10.1016/j.proche.2015.10.060

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…The solution to the problem of processing these wastes, containing a large amount of chemisorbed corrosive substances, is very important for enterprises where installations provide a halogenation procedure during the regeneration of reforming catalysts. Due to the huge demand for high-quality gasoline, we know about the hardware design [4,5] and the features of various naphtha reforming processes [6,7], the kinetics of reactions [8], causing an increase in the octane number of low-boiling hydrocarbons, the development and production of new catalysts [9][10][11][12] for implementation. The formation of acidic and metallic Pt centers, the mechanism of coke formation [13], the influence of a number of factors on the degree of deactivation of reforming catalysts [14], and optimization of the conditions for their regeneration [15] have been studied in detail.…”

Section: Introductionmentioning

confidence: 99%

Complex Processing of Adsorbent Used in the Purification of Hydrogen-Containing Gas

Ibodullaev

Isaeva²,

Khodjiev

et al. 2021

Bull. Chem. React. Eng. Catal.

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The problems of processing spent adsorbents with a high concentration of chemisorbed chlorine-containing compounds for their reuse are studied in this article. The genesis of the phase composition and morphology at all technological stages of thermochemical regeneration of the spent adsorbent - Axstrap-860 by means of alkaline modification with a combined solution of sodium and potassium hydroxides has been tested by diffractometry and elemental analysis. The results show that the formation of a layer with an increased concentration of alkali metals in the form of the corresponding carbonates and NaOH on the surface of the granules and in the volume of sodium and potassium aluminates provides adsorption of HCl, which are slightly inferior to the fresh adsorbent. The conditions for the removal of halogen-containing substances from technogenic raw materials with the subsequent isolation of useful products have been optimized: (1) crystalline NaCl intended for the preparation of electrolyte for electrode boilers and steam generators; (2) a mixture of chlorides and hydroxochlorides of aluminum tested in the process of coagulation purification of turbid natural and waste waters; (3) pseudoboehmite for the production of an adsorbent-desiccant and the synthesis of magnesium-aluminum spinel using the technology of destruction-epitaxial transformation, and a promising carrier for catalysts for steam reforming of hydrocarbons. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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