Key Laboratory for Biochemical Engineering of Shandong Province

Jinan, China

Key Laboratory for Biochemical Engineering of Shandong Province

Jinan, China

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Xing W.-G.,Key Laboratory for Biochemical Engineering of Shandong Province | Feng W.-C.,Key Laboratory for Biochemical Engineering of Shandong Province | Zhang C.-Q.,Shandong University | Yu P.,Shandong University | Wei Y.-H.,Shandong University
Cailiao Gongcheng/Journal of Materials Engineering | Year: 2011

A new natural gas drag reduction agent stearic imidazoline was synthesized according to the drag reduction mechanism and inhibitor mechanism. The mechanism of the film-forming on the iron surface was discussed. The drag reduction efficiency of stearic imidazoline was tested on the drag reduction test loop. The film-forming property of stearic imidazoline was studied by electrochemical characterization and SEM. The results show that stearic imidazoline is adsorbed on the iron surface and smooth membrane is formed. The roughness of the gas pipeline is significantly improved. Under the condition of 8 g/L stearic imidazoline and 1 h, the maximum drag reduction efficiency is 8.7%. It is a valuable reference to practical industrial development.


Xing W.-G.,Key Laboratory for Biochemical Engineering of Shandong Province | Meng X.-X.,Key Laboratory for Biochemical Engineering of Shandong Province | Feng W.-C.,Key Laboratory for Biochemical Engineering of Shandong Province | Zhang C.-Q.,Shandong University
Xiandai Huagong/Modern Chemical Industry | Year: 2013

The oil drag reduction agents are prepared by polymerization of 1-decene using different content of Ziegler-Natta catalyst. The Ziegler-Natta catalyst is made up of TiCl3 as main catalyst and AlR3 or AlR2Cl as co-catalyst, respectively. The influence of content of the main catalyst and the co-catalyst on drag reducing efficiency is studied. The results show that with the increase of co-catalyst AlCl3 and Al R2Cl, the drag reducing efficiency is decreased. And with the increase of the main catalyst TiCl3 show different rules. Consequently, it is a valuable reference to practical industrial development.


Xing W.-G.,Key Laboratory for Biochemical Engineering of Shandong Province | Meng X.-X.,Key Laboratory for Biochemical Engineering of Shandong Province | Feng W.-C.,Key Laboratory for Biochemical Engineering of Shandong Province | Zhang C.-Q.,Shandong University
Hangkong Cailiao Xuebao/Journal of Aeronautical Materials | Year: 2014

The first-principle molecular dynamics simulation was employed to study the melt structure of 55% Al-Zn alloy using Vienna ab initio simulation package (VASP). The structure and dynamic properties of the melt were obtained. The results indicate that the calculation value of structure factor is in agreement with the experimental value. The atomic distribution of Al does not apparently change after adding Zn atom. The ratio between the coordination number of Al-Al and Al-Zn in Al-Zn alloy melt is about 3:1, which is coincident with the ratio of the atom content in alloy melt. The Zn atom distributes randomly and homogeneously. The effects of cage Al forms from nearest-neighbor atom on impeding motion were intensive.


Xing W.-G.,Key Laboratory for Biochemical Engineering of Shandong Province | Li P.-P.,Key Laboratory for Biochemical Engineering of Shandong Province | You Q.,Key Laboratory for Biochemical Engineering of Shandong Province | Meng X.-X.,Key Laboratory for Biochemical Engineering of Shandong Province | And 3 more authors.
Xiandai Huagong/Modern Chemical Industry | Year: 2014

The polymerization process of α-olefin with 1-Decene d as monomer and TiCl3/AlR2Cl as catalyst is studied. The influences of primary and secondary catalyst contents, polymerization temperature and relative molecular weight of poly(α-olefin) on the oil drag reduction property are investigated. The drag reduction efficiency can reach 45.3% under the following conditions: 100 mL 50 mg:0.25 mL of V(1-Decene):m(TiCl3):V(AlR2Cl), and 265 K of polymerization temperature, which can provide a valuable reference to practical industrial development.

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