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A Novel Eco-Friendly Scale and Corrosion Inhibitor Modified by ß-Cyclodextrin

Mingjin TangACollege of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, ChinaJianbo LiACollege of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, ChinaZhengrong YeBResearch Institute of Petroleum Exploration and Development, Beijing 100083, ChinaZimin KouACollege of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, ChinaLuoping FuACollege of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China

2017en

ABI

Annotatsiya

A polymer, ß-MEA, was synthesised from ß-cyclodextrin (ß-CD), 3-chloro-2-methylpropene (MAC), epoxysuccinic acid (ESA), and 2-acrylamido-2-methyl propane sulfonic acid (AMPS) with a (NH4)2S2O8-NaHSO3 redox initiator system by aqueous solution radical polymerisation. ß-MEA was characterised by means of IR spectroscopy, time-of-flight mass spectrometry, gel permeation chromatography, and thermogravimetric analysis. Its structure, molecular weight, thermal stability, scale and corrosion inhibition performance and mechanism were investigated. The results verified that ß-MEA achieves a better scale inhibition efficiency for BaSO4 compared with poly(aspartic acid) (PASP) (100 % cf. 94.9 % at a concentration of 20 mg L-1) and a better corrosion inhibition efficiency of N80 carbon steel in saline water compared with PESA (91.2 % cf. 79.7 % at a concentration of 1 g L-1). The BaSO4 was characterised by scanning electron microscopy (SEM) and X-ray diffraction to investigate the crystal morphology of the scale. Primary research on the mechanism for corrosion inhibition was carried by SEM-chemical analysis.

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Identifikatorlar

DOI: 10.1071/ch16720

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