Petroleum Science >2012,??Issue 1:??100-105 DOI: https://doi.org/10.1007/s12182-012-0189-6
Analysis and calculation model of energy consumptionand product yields of delayed coking units Open?Access
文章信息
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
文章摘要
consumption and light oil yield are important factors for evaluating the delayed coking process. This paper
analyzes the energy consumption and product yields of delayed coking units in China. The average energy
consumption shows a decreasing trend in recent years. The energy consumption of different refineries varies
greatly, with the average value of the highest energy consumption approximately twice that of the lowest
energy consumption. The factors affecting both energy consumption and product yields were analyzed,
and correlation models of energy consumption and product yields were established using a quadratic
polynomial. The model coefficients were calculated through least square regression of collected industrial
data of delayed coking units. Both models showed good calculation accuracy. The average absolute error of
the energy consumption model was approximately 85 MJ/t, and that of the product yield model ranged from
1 wt% to 2.3 wt%. The model prediction showed that a large annual processing capacity and high load rate
will result in a reduction in energy consumption.
关键词
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Delayed coking, energy consumption, product yield, model