Characteristics of Deposits Formed in Cyclones in Commercial RFCC Reactor

Autor:	Gyung Rok Kim, Cheol Joong Kim, Jae Suk Koh, Ju Wook Lee, Sun Choi, Sung Won Kim
Rok vydání:	2012
Předmět:	chemistry.chemical_classification Nanostructure General Chemical Engineering Mineralogy General Chemistry Industrial and Manufacturing Engineering Amorphous solid Catalysis Hydrocarbon chemistry Chemical engineering Nano Cyclone Atomic ratio Carbonaceous matter
Zdroj:	Industrial & Engineering Chemistry Research. 51:10238-10246
ISSN:	1520-5045 0888-5885
DOI:	10.1021/ie300422y
Popis:	Deposits in a commercial RFCC reactor were characterized using an analytical approach. Further characterization of deposits on the reactor cyclone, which are one of the primary problems causing abnormal shut-down of RFCC, was carried out in order to understand the formation mechanism of the deposit. The deposits in the reactor consist of hydrocarbon and inorganic matter, compositions of which are well matched with the RFCC catalyst. In a longitudinal analysis of a sample reflecting age, H/C atomic ratio decreases slightly with increased aging time in inner regions and has high value at the surface region, which is a relatively fresh deposit. The particles, surrounded by carbonaceous matter, and amorphous carbonaceous matter are observed through surface micrographs. Aromatic compounds and nano- and microcatalyst fines contribute to the formation of deposits. Micro- and nanostructure of the deposit is amorphous or very weakly ordered. The H/C atomic ratios of samples with different ages, over 90 days, do no...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bc2e97b03556b2096ff9ab11a9dc46b7 https://doi.org/10.1021/ie300422y Zobrazit plný text záznamu