Poisoning effect of nitrogen compounds on the transformation of model hydrocarbons and real feed under catalytic cracking conditions Full article
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Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555 |
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| Output data | Year: 2014, Volume: 6, Number: 3, Pages: 218-222 Pages count : 5 DOI: 10.1134/S2070050414030040 | ||||
| Tags | catalytic cracking, equilibrium catalyst, nitrogen poisoning, hydrogen transfer, vacuum gasoil, hydrocracking residue | ||||
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Abstract:
The effect of the content and nature of nitrogen compounds on the distribution of target products
in transforming model hydrocarbons under cracking conditions over equilibrium zeolitecontaining catalyst was studied. Using cracking of nundecane as an example, a nearly 50% drop in the conversion and in yields of propanepropene (PPF) and butanebutene fractions (BBF) was observed when the pyrrol content in the feed was raised to 3000 ppm of nitrogen. Increasing the nitrogen content in the feed led to a nonlinear reduction in the rate constants ofnundecane cracking. It was found that the dependence of the yields of PPF, BBF, and isobutane in BBF on the conversion remained constant upon the cracking of nundecane with various of nitrogen compounds; poisoning was likely to proceeds only because the acidic sites of the catalyst were blocked. The high poisoning effect of pyrrol and indole upon the cracking ofnundecane and decalin (strong proton donors) was observed along with the formation of ammonia. Quinoline exhibited high poisoning ability in the catalytic cracking of cumene with low [H]donor activity. Quinoline poisoned catalysts to a greater degree than indole, during the catalytic cracking of nonhydrofined vacuum gasoil with a high content of aromatic structures. Indole exhibited the highest poisoning ability in processing heavy hydrocracking residue which was rich of paraffin–naphthene hydrocarbons.
Cite:
Bobkova T.V.
, Doronin V.P.
, Potapenko O.V.
, Sorokina T.P.
, Ostrovskii N.M.
Poisoning effect of nitrogen compounds on the transformation of model hydrocarbons and real feed under catalytic cracking conditions
Catalysis in Industry. 2014. V.6. N3. P.218-222. DOI: 10.1134/S2070050414030040 WOS Scopus РИНЦ OpenAlex
Poisoning effect of nitrogen compounds on the transformation of model hydrocarbons and real feed under catalytic cracking conditions
Catalysis in Industry. 2014. V.6. N3. P.218-222. DOI: 10.1134/S2070050414030040 WOS Scopus РИНЦ OpenAlex
Original:
Бобкова Т.В.
, Доронин В.П.
, Потапенко О.В.
, Сорокина Т.П.
, Островский Н.М.
Дезактивирующее влияние азотистых соединений на превращения модельных углеводородов и реального сырья в условиях каталитического крекинга
Катализ в промышленности. 2014. №2. С.40-45. РИНЦ
Дезактивирующее влияние азотистых соединений на превращения модельных углеводородов и реального сырья в условиях каталитического крекинга
Катализ в промышленности. 2014. №2. С.40-45. РИНЦ
Dates:
| Accepted: | Feb 6, 2014 |
| Published print: | Jul 1, 2014 |
| Published online: | Sep 25, 2014 |
Identifiers:
| Web of science: | WOS:000433671600009 |
| Scopus: | 2-s2.0-84920265773 |
| Elibrary: | 24028081 |
| OpenAlex: | W1997832872 |