| LU Yuan,ZHAO Jing-mao,LI Ming-jie,ZHANG Chen,Vahdat Zahedi Asl,Yahya Palizdar,FAN Bao-min.Prediction on Synergistic Effect of Inhibitors in Different Systems by Fractional Free Volumes[J],49(11):58-65 |
| Prediction on Synergistic Effect of Inhibitors in Different Systems by Fractional Free Volumes |
| Received:October 10, 2020 Revised:November 09, 2020 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2020.11.007 |
| KeyWord:corrosion synergistic effect fraction free volume corrosion inhibitor inhibition efficiency |
| Author | Institution |
| LU Yuan |
CenerTech Oilfield Chemical Co., Ltd, Tianjin , China |
| ZHAO Jing-mao |
School of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing , China |
| LI Ming-jie |
School of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing , China |
| ZHANG Chen |
South China Branch, PipeChina Co., Ltd, Guangzhou , China |
| Vahdat Zahedi Asl |
School of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing , China |
| Yahya Palizdar |
Nanotechnology and Advanced Materials Department, Materials and Energy Research Center, Karaj 31787-316, Iran |
| FAN Bao-min |
School of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to study a new method to analyze the synergistic effect between inhibitors. The amorphous cell module in material studio 7.0 software was used to construct object. In different systems, discover module was employed for optimization and calculation and carry out FFV test with water molecule as the probe to obtain FFV through simulation and calculation. Then, the change rate of FFV was adopted to predict the synergistic effect between inhibitors and the correctness of the method was verified by traditional method. From the simulation result of FFV, MTIAS and AB2N had synergistic effect in CO2 system. When these two components were combined in accordance with the mole ratio of 3∶2, FFV was the smallest, FFV had the maximum change value D, the best synergistic effect and the highest inhibition efficiency, while MTIAS and CPQA had no obvious synergistic effect. In CO2/H2S system, when MTIAS and CPQA were combined with a mole ratio of 4:1, FFV was the smallest, D was the largest, the synergistic effect was the best, and the inhibition efficiency was the highest. However, when MTIAS and CPQA were combined with a mole ratio of 1∶4, there was obvious antagonistic effect. MTIAS and AB2N had no obvious synergistic effect. The results of weight-loss method and the polarization curve test were in agreement with the above results. It is a fast and effective method to predict the synergistic effect of inhibitors by FFV of inhibitor film. |
| Close |
|
|
|