Journal of Cleaner Production | VOL. 255

Paraffin-based crude oil refining process unit-level energy consumption and CO2 emissions in China

Publication Date May 1, 2020


Abstract Petroleum refining is a technology complex, energy-and CO2 emission-intensive industrial process, which is affected by the type and property of the crude oil. China has been the exploitation of crude oil to paraffinic most. This paper targets to quantify and evaluate the material or energy metabolism and environment loads of paraffin-based petroleum at refining process unit-level through the established petroleum flow and energy flow on the CO2 emissions accounting framework, and explores energy conservation and CO2 emission reduction pathways and policy implications, using a typical paraffin-based petroleum refining enterprise in China as a case. The results indicated that the crude oil from the inputs were fractionated in the atmospheric and vacuum distillation (AVD) unit, and its energy consumption and CO2 emissions accounted for 14.38 % and 13.2 % of the total energy consumption and CO2 emissions in the case study, respectively. With the transformation of petroleum refinery plant structure, fluid catalytic cracking (FCC), ketone benzol dewaxing (KBD), and delayed coking units dominated more energy consumption and CO2 emissions. FCC unit was both the largest energy consumer and supplier, flue gas waste heat recovery efficiency of which was an important factor affecting energy conservation and CO2 emission reduction for FCC unit and even enterprise. KBD unit records the largest energy and CO2 emission intensities, which are 67.95 kgce/t product and 256.82 kgCO2e/t product respectively, due to the high wax content ...

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Fluid Catalytic Cracking
Fluid Catalytic Cracking Unit
CO2 Emissions
Flue Gas Waste Heat Recovery
Crude Oil
Energy Consumption
CO2 Emission Intensities
High Wax Content

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