Produce petrochemicals directly from crude oil catalytic cracking, a techno-economic analysis and life cycle society-environment assessment
| Autor: | Xin Zhou, Xiang Feng, Xiaobo Chen, Chaohe Yang, Zongzhuang Sun, Hui Zhao, Hao Yan, Yibin Liu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Hydrogen
Waste management Renewable Energy Sustainability and the Environment 020209 energy Strategy and Management 05 social sciences chemistry.chemical_element 02 engineering and technology Building and Construction Fluid catalytic cracking Industrial and Manufacturing Engineering Refinery Cracking Petrochemical chemistry Wastewater Scientific method mental disorders 050501 criminology 0202 electrical engineering electronic engineering information engineering Environmental science Carbon 0505 law General Environmental Science |
| Zdroj: | Journal of Cleaner Production. 308:127283 |
| ISSN: | 0959-6526 |
| Popis: | Achieving direct catalytic cracking of crude oil to produce low-cost petrochemicals is a milestone technology for the transformation of refinery from “fuel type” to “chemical engineering type”. Herein, we first established the crude oil catalytic cracking process and identified the key process parameters affecting ethylene and propylene yields. Meanwhile, the crude oil direct steam cracking process was selected as a comparative process for the process economic, social and environmental performance by an improved life cycle society-environment assessment method. The improvement direction, suitable preheating temperature and higher cracking temperature, are given from the aspect of process though systematic integration and intensification. Results show the conversion rate of the catalytic cracking process is 86.10%, while the steam cracking process is only 76.71%. Furthermore, the utilization efficiency of carbon and hydrogen in the catalytic cracking process is 1.29 and 1.47 times higher than the steam cracking process, respectively. As for the society-economic performance, the catalytic cracking process provides up to 65% and 11% increase in net present value and total output value. As for the environmental performance, the catalytic cracking process consumes approximately 4% less non-renewable energy and has 31% less waste water generation. The results in this study harbour tremendous guiding significance to the design of crude oil directly efficient conversion to petrochemicals. |
| Databáze: | OpenAIRE |
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