Recycling of Wastes from the Production of Alumina-Based Catalyst Carriers | Sciact

Recycling of Wastes from the Production of Alumina-Based Catalyst Carriers Научная публикация

Журнал

Industrial & Engineering Chemistry Research
ISSN: 0888-5885 , E-ISSN: 1520-5045

Вых. Данные

Год: 2016, Том: 55, Номер: 34, Страницы: 9101-9108 Страниц : 8 DOI: 10.1021/acs.iecr.6b00978

Авторы

Matveyeva Anna N. ^1,2 , Pakhomov Nikolai A. ^1,2 , Murzin Dmitry Yu. ^2,3

Организации

1	Department of General Chemical Technology and Catalysis, St. Petersburg State Institute of Technology (Technical University), 26,Moskovsky Ave., St. Petersburg 190013, Russia
2	Laboratory of Catalytic Technologies, St. Petersburg State Institute of Technology (Technical University), 26, Moskovsky Ave., St.Petersburg 190013, Russia
3	Laboratory of Industrial Chemistry and Reaction Engineering, Åbo Akademi University, 8, Biskopsgatan, Turku/Åbo 20500, Finland

Preparation of microspherical chromia–alumina KDM-type catalysts for alkane dehydrogenation is based on utilization of an amorphous nanostructured hydroxide–oxide Al2O3–x(OH)2·nH2O (where x = 0–0.28, n = 0.03–1.8) prepared via the centrifugal thermal activation (CTA) of gibbsite. The fine fraction of this carrier is considered as industrial waste, requiring efficient recycling options, which are explored in this work. A range of physicochemical methods was applied to analyze the main properties (phase composition, morphology, reactivity, etc.) of pilot and industrial batches of gibbsite CTA products. It has been clearly shown that the properties of CTA products are dependent on the nature of gibbsite used. The largest amount of the active amorphous phase of alumina is formed using gibbsite made from concentrated nepheline. Regularities of rehydration of the CTA-products fine fraction in acidic/alkaline media and dissolution in sulfuric acid of the fine fraction of gibbsite and the industrial CTA product were explored to prepare aluminum sulfate, which is a water purification coagulant.

Matveyeva A.N. , Pakhomov N.A. , Murzin D.Y.
Recycling of Wastes from the Production of Alumina-Based Catalyst Carriers
Industrial & Engineering Chemistry Research. 2016. V.55. N34. P.9101-9108. DOI: 10.1021/acs.iecr.6b00978 Scopus РИНЦ OpenAlex

Scopus:	2-s2.0-84984698405
РИНЦ:	26801232
OpenAlex:	W2510777911

БД	Цитирований
OpenAlex	16