Influence of oil, formation water and hydrochloric acid on physicochemical properties of polymer materials of high pressure pipelines

The purpose of the work is to conduct a comparative analysis of the stability of two types of polymer coatings to the effects of formation water and hydrochloric acid based on the analysis of mechanical properties, thermal stability and surface morphology. To accomplish the task, modern physical-chemical methods were used: differential scanning calorimetry, microscopy, an electromechanical universal testing machine, a dilatometer. Simulation of the effect of water at elevated temperatures and pressures on the polymer coating samples was carried out in an autoclave-reactor, the study of the effect of acid was carried out in a glass beaker. On the basis of the work carried out, results were obtained that show similarities and differences in the behavior of the polymer samples studied. The change of the dynamic modulus of elasticity and the coefficient of linear thermal expansion with increasing temperature is investigated. In general, it has been shown that PE-RT polymer has better characteristics than PE polymer. However, both of them are stable to the exposure of formation water and hydrochloric acid and can protect corrosion of high pressure pipes connections.

Download Full-text

Effect of formation water and hydrochloric acid on the physical and chemical properties of polymer materials of high pressure pipelines used for transportation of crude oil

E3S Web of Conferences ◽

10.1051/e3sconf/201912104001 ◽

2019 ◽

Vol 121 ◽

pp. 04001

Author(s):

Dmitrii Aiduganov ◽

Dinar Balkaev ◽

Mikhail Varfolomeev ◽

Dmitrii Emelianov

Keyword(s):

High Pressure ◽

Hydrochloric Acid ◽

Elevated Temperatures ◽

Testing Machine ◽

Linear Thermal Expansion ◽

Chemical Properties ◽

Polymer Coatings ◽

Polymer Materials ◽

Formation Water ◽

Scanning Calorimetry

The purpose of the work is to conduct a comparative analysis of the stability of two types of polymer coatings to the effects of formation water and hydrochloric acid based on the analysis of mechanical properties, thermal stability and surface morphology. To accomplish the task, modern physical-chemical methods were used: differential scanning calorimetry, microscopy, an electromechanical universal testing machine, a dilatometer. Simulation of the effect of water at elevated temperatures and pressures on the polymer coating samples was carried out in an autoclave-reactor, the study of the effect of acid was carried out in a glass beaker. On the basis of the work carried out, results were obtained that show similarities and differences in the behavior of the polymer samples studied. The change of the dynamic modulus of elasticity and the coefficient of linear thermal expansion with increasing temperature is investigated. In general, it has been shown that PE-RT polymer has better characteristics than PE polymer. However, both of them are stable to the exposure of formation water and hydrochloric acid and can protect corrosion of high pressure pipes connections.

Download Full-text

High-Pressure Homogenization Alters Physicochemical Properties and In Vitro Digestibility of Chinese Yam (Dioscorea Opposita Thunb.) Starch

Current Topics in Nutraceutical Research ◽

10.37290/ctnr2641-452x.18:10-15 ◽

2018 ◽

Vol 18 (1) ◽

pp. 10-15

Author(s):

Wang Yi-Wei ◽

He Yong-Zhao ◽

An Feng-Ping ◽

Huang Qun ◽

Zeng Feng ◽

...

Keyword(s):

High Pressure ◽

Physicochemical Properties ◽

Starch Content ◽

In Vitro Digestibility ◽

High Pressure Homogenization ◽

Starch Granules ◽

Cross Polarization ◽

Chinese Yam ◽

Crystal Type

In this study, Chinese yam starch-water suspension (8%) were subjected to high-pressure homogenization (HPH) at 100 MPa for increasing cycle numbers, and its effect of on the physicochemical properties of the starch was investigated. Results of the polarizing microscope observations showed that the starch granules were disrupted (i.e. greater breakdown value) after HPH treatment, followed by a decrease in cross polarization. After three HPH cycles, the crystallinity of starch decreased, while the crystal type remained unaltered. Meanwhile, the contents of rapidly digestible starch and slowly digestible starch were increased. On the contrary, resistant starch content was decreased. Our results indicate that HPH treatment resulted in reduction of starch crystallinity and increase of starch digestibility.

Download Full-text

Synthesis and Interfacial Activity of Alkyl Polyoxypropylene Sulfonate for Chemical Combination Flooding

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.550-553.3 ◽

2012 ◽

Vol 550-553 ◽

pp. 3-9

Author(s):

You Yi Zhu ◽

Zhang Lei Ning ◽

Qing Feng Hou ◽

Ming Lei ◽

Guo Qing Jian

Keyword(s):

Salt Tolerance ◽

Interfacial Tension ◽

Divalent Cation ◽

Carbon Chain ◽

Carbon Chain Length ◽

Formation Water ◽

Interfacial Activity ◽

Chemical Combination ◽

Ultralow Interfacial Tension ◽

Oil Formation

A serious of alkyl polyoxypropylene sulfonate surfactant was synthesized. The O/W interfacial activity of alkyl polyoxypropylene sulfonate surfactant was investigated. The results showed that the interfacial tension of Indonesia crude oil/formation water could reach ultralow level (10-3mN/m order of the magnitude) under weak alkali (Na2CO3) concentration from 0.4wt% to 1.0wt% with C16PO8S, C16PO10S, C18PO8S and C18PO10S alkyl polyoxypropylene sulfonate respectively. These surfactants showed good interface activity and salt and divalent cation tolerance ability. Combinations of alkyl polyoxypropylene sulfanate homologies with different carbon chain length could significantly improve the interface activity. The IFT of Indonesia oil/formation water could reach ultralow interfacial tension under alkali free conditions. The combination of alkyl polyoxypropylene sulfonate surfactant with petroleum sulfonate could improve the salt tolerance ability of formula.

Download Full-text

Physicochemical properties of waxy and normal corn starches treated in different anhydrous alcohols with hydrochloric acid

Food Hydrocolloids ◽

10.1016/j.foodhyd.2005.02.024 ◽

2006 ◽

Vol 20 (2-3) ◽

pp. 332-339 ◽

Cited By ~ 43

Author(s):

Yung-Ho Chang ◽

Jheng-Hua Lin ◽

Siao-Yu Chang

Keyword(s):

Hydrochloric Acid ◽

Physicochemical Properties

Download Full-text

Effects of high‐pressure cooking processing on the physicochemical properties, structure, and digestibility of citric acid‐esterified starches

International Journal of Food Science & Technology ◽

10.1111/ijfs.15241 ◽

2021 ◽

Author(s):

Haixiang Wei ◽

Liang Baodong ◽

Keyi Wei ◽

Xue Liping ◽

Zeng Shunde ◽

...

Keyword(s):

High Pressure ◽

Citric Acid ◽

Physicochemical Properties ◽

Pressure Cooking

Download Full-text

STUDY OF GELATIN FROM DUCK BONE AS AN ALTERNATIVE SOURCES OF HALAL GELATIN

Jurnal Sains Natural ◽

10.31938/jsn.v10i1.237 ◽

2020 ◽

Vol 10 (1) ◽

pp. 1

Author(s):

Muhammad Habbib Khirzin

Keyword(s):

Hydrochloric Acid ◽

Physicochemical Properties ◽

Protein Content ◽

Water Content ◽

Extraction Method ◽

Extraction Process ◽

Ash Content ◽

Acid Extraction ◽

Alternative Sources

Gelatin is an intermediate ingredient which is oftenly used in many field such as food, pharmacy, and cosmetics. It is usually extracted from pig and cow. Halal issue of gelatin sources and the outbreaks of mad cow diseases encouraged people to find an alternative sources of gelatin. One of the alternative sources of gelatin was duck bone. The aim of this research was to describe physicochemical properties of duck bone gelatin which is extracted by using acid extraction method as an alternative sources of halal gelatin. The extraction of duck bone gelatin used 5% concentration of HCl (hydrochloric acid). The extraction process consisted of four steps, they were degreassing, defating, demineralization, and acid extraction. The result showed that gelatin which was extracted from duck bone had these several characteristic: yield of 6.24%, pH 4.0, water content of 13.43%, ash content of 13.42%, protein content of 65.43%, and whiteness degree of 30.35%. Generally, gelatin which was extracted from duck bone had similar characteristic with commercial gelatin and SNI standard. Further researcher had been suggested to reoptimized extraction method in order to reduce ash content.

Download Full-text

Morphological, structural and physicochemical properties of rice starch nanoparticles prepared via ultra-high pressure homogenization

International Journal of Food Engineering ◽

10.1515/ijfe-2021-0186 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Chengyi Sun ◽

Yuqing Hu ◽

Xietian Yu ◽

Zhijie Zhu ◽

Shuai Hao ◽

...

Keyword(s):

High Pressure ◽

Physicochemical Properties ◽

Particle Diameter ◽

Amorphous Region ◽

Rice Starch ◽

Crystalline Region ◽

High Pressure Homogenization ◽

Relative Crystallinity ◽

Ultra High Pressure ◽

Starch Nanoparticles

Abstract Native rice starches were treated with five periods of ultra-high pressure homogenization (UHPH) under each of 60, 80, 100, 120, 140 and 160 MPa, respectively. The morphological, structural and physicochemical properties of starches treated with UHPH were examined. The mean particle diameter of starch nanoparticles ranged between 154.20 and 260.40 nm. SEM revealed that the granular amorphous region of starch granules was damaged under pressures between 60 and 80 MPa, and the crystalline region was further destroyed under pressures as high as 100–160 MPa. DSC demonstrated that the gelatinization temperatures and enthalpies of nanoparticles reduced. The relative crystallinity reduced from 22.90 to 13.61% as the pressure increased. FTIR showed that the absorbance ratio at 1047/1022 cm−1 decreased, and increased at 1022/995 cm−1. RVA results indicated that the viscosity of starch samples increased between 60 and 120 MPa, and the reverse effect was observed under 140 and 160 MPa.

Download Full-text