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Dive into the research topics where Xingang Li is active.

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Featured researches published by Xingang Li.


Petroleum Science and Technology | 2011

A New Downstream Process Design for a Fluid Catalytic Cracking Unit to Raise Propylene Yield and Decrease Gasoline Olefin Content

Xingang Li; Li G; Z. Xu; Hong Sui

Abstract Based on the paraffins, olefins, naphthenes, aromatics (PONA) composition of crude light gasoline, crude heavy gasoline, stabilized gasoline, and wet gas of a pilot plant fluid catalytic cracking (FCC) unit, it was found that the root cause of high gasoline olefin content and low propylene yield was low C5 and C6 olefin content of crude light gasoline. A new design for the main fractionater and absorber–stripper–stabilizer was presented to obtain stabilized light gasoline that contains more C5 and C6 olefins recracked in the secondary riser. Industrial studies on the revamped unit showed that gasoline olefin content was decreased markedly, though research octane number (RON) was preserved. In addition, propylene yield was raised to a higher level and unit energy consumption (or operating cost) was not increased.


Journal of Engineering Thermophysics | 2017

Conversion of low-grade heat from FCC absorption-stabilization system to electricity by organic Rankine cycles: Simulation and optimization

Hong Sui; J. Wu; Lin He; Xingang Li

In this study, the organic Rankine cycle (ORC) is applied to be integrated into the fluid catalytic cracking (FCC) absorption-stabilization system to extract and convert the low-grade process heat to electricity. This newly integrated system is simulated by the Aspen Plus software. For the simulation, eleven different dry and isentropic working fluids are selected to investigate the energy conversion performance of the incorporated ORC system. It is found that, the performance depends highly on the operational parameters, such as mass flow rate and the evaporation pressure of the working fluids, outlet temperature of the process stream. After optimization, the working fluids R124 and R227ea are determined to be the best candidates due to their highest output net work in HCT (high critical temperature) and LCT (low critical temperature) working fluids, respectively. A further optimization has been conducted based on the economic evaluations (i.e., electricity production cost (EPC) and total annual profit (TAP)). Results show that, for the HCT working fluids, the use of working fluid of R245fa allows the EPC to be the lowest, while the application of R124 obtains the highest TAP. For the LCT working fluids, R227ea is the best choice due to its lowest EPC and highest TAP.


Petroleum Science and Technology | 2015

An Optimization Model for Shanbei Crude Oil Blending

Xingang Li; J. Hou; Hong Sui

The basic properties of the Shanbei crude oils and its mixed were studied first. Then, a hybrid coefficient function for the viscosity of the mixed oils was introduced. With these, an optimization model of the proportion for the crude oils blending was established and solved. An applicable proportion for six Shanbei crude oils’ blending was given. With the proportion, one mixed oil was prepared and distilled. Fouling and coking are discussed with the simulation in the distillation to assist the optimization. The experiment results showed that the model was valid for the oils blending.


Chemical Society Reviews | 2015

Interfacial sciences in unconventional petroleum production: from fundamentals to applications.

Lin He; Feng Lin; Xingang Li; Hong Sui; Zhenghe Xu


Chemical Engineering Science | 2009

Origin of pressure fluctuations in an internal-loop airlift reactor and its application in flow regime detection

Wen-Hui Zhang; Xingang Li


Chemical Engineering Science | 2010

Experimental investigation and CFD simulation of liquid–solid–solid dispersion in a stirred reactor

Licheng Wang; Yifei Zhang; Xingang Li; Yi Zhang


Chemical Engineering Science | 2013

Influence of a microwave irradiation field on vapor-liquid equilibrium

Xin Gao; Xingang Li; Jinsong Zhang; Jiayan Sun; Hong Li


Chemical Engineering Science | 2005

Cyclic total reflux batch distillation with two reflux drums

Peng Bai; Chao Hua; Xingang Li; Kuotsung Yu


Chemical Engineering Science | 2013

A method for modeling a catalytic distillation process based on seepage catalytic packing internal

Hui Zhang; Xingang Li; Xin Gao; Hong Li


Journal of environmental chemical engineering | 2016

Enhancing heavy oil liberation from solid surfaces using biodegradable demulsifiers

Lin He; Feng Lin; Xingang Li; Zhenghe Xu; Hong Sui

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Feng Lin

University of Alberta

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