Gasoline- and diesel-like products from heavy oils via catalytic pyrolysis
| Autor: | Avni Aslan, Nejdet Sen, Ayhan Demirbas, Khalid A. Al-Ghamdi, Walid M. Alalayah |
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| Přispěvatelé: | Faculty of Engineering, Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah, Saudi Arabia, Faculty of Engineering, Department of Industrial Engineering, King Abdulaziz University, Jeddah, Saudi Arabia, Faculty of Science, Department of Chemistry, Selcuk University, Konya, Turkey, Department of Chemistry, Celal Bayar University, Manisa, Turkey |
| Rok vydání: | 2017 |
| Předmět: |
Light crude oil
Waste management 020209 energy General Chemical Engineering Energy Engineering and Power Technology 02 engineering and technology General Chemistry Catalytic pyrolysis Geotechnical Engineering and Engineering Geology Organic molecules Diesel fuel Fuel Technology 020401 chemical engineering Oil reserves 0202 electrical engineering electronic engineering information engineering Environmental science 0204 chemical engineering Gasoline Pyrolysis Asphaltene |
| Zdroj: | Petroleum Science and Technology. 35:1607-1613 |
| ISSN: | 1532-2459 1091-6466 |
| DOI: | 10.1080/10916466.2017.1336768 |
| Popis: | Heavy oil is less expensive than light crude oil, but heavy oil is more expensive to obtain light oil products. Conventional light crude oil resources are decreasing, therefore heavy oil resources will be needed more in the future. There are huge differences from field to field for heavy oil deposits. In terms of final productive use, heavy oil is considered as an unconventional resource. Heavy oil upgrading depends on four important factors: catalyst selection, heavy oil classification, process design, and production economics. Heavy and extra-heavy oils are unconventional reservoirs of oil. Globally, 21.3% of total oil reserves are heavy oil. Heavy oil is composed of long chain organic molecules called heavy hydrocarbons. The thermal degradation of the heavy hydrocarbons in heavy oil generates liquid and gaseous products. All kinds of heavy oils contain asphaltenes, and therefore are considered to be very dense material. The most similar technologies for upgrading of heavy oils are pyrolysis and catalytic pyrolysis, thermal and catalytic cracking, and hydrocracking. The amount of liquid products obtained from pyrolysis of heavy oil was dependent on the temperature and the catalyst. Pyrolytic oil contains highly valuable light hydrocarbons as gasoline and diesel components range. The constant increase in the use of crude oils has raised prices of the most common commercial conventional products and consequently seeking for new alternative petroleum resources, like some unconventional oil resources, becomes an interesting issue. The mass contents of gasoline, diesel, and heavy oil in the crude oil are 44.6%, 38.3%, and 17.1%, respectively. The gasoline yield from the heavy oil catalytic (Na2CO3) pyrolysis is higher than the diesel efficiency for all conditions. The yield of gasoline products increases with increasing pyrolysis temperature (from 230°C to 350°C) and percentage of catalyst (from 5% to 10%). The yields of gasoline-like product are from 21.5% to 39.1% in 5% catalytic run and from 32.5% to 42.5% in 10% catalytic run. The yields of diesel-like product are from 9.3% to 29.8% in 5% catalytic run and from 15.5% to 33.7% in 10% catalytic run. © 2017 Taylor & Francis Group, LLC. |
| Databáze: | OpenAIRE |
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