Designing maleic anhydride-α-olifin copolymeric combs as wax crystal growth nucleators

Soni, Hemant; Kiranbala,; Agrawal, K. S.; Nagar, A.; Bharambe, D.P.

doi:10.1016/j.fuproc.2010.02.019

Cited by 86 publications

(40 citation statements)

References 27 publications

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“…A group of maleic anhydride-based copolymers was developed by Soni et al (2005Soni et al ( , 2008Soni et al ( , 2010. Some of examples are given in Fig.…”

Section: Newly Developed Polymersmentioning

confidence: 99%

Recent advances on mitigating wax problem using polymeric wax crystal modifier

Wei

2014

J Petrol Explor Prod Technol

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The petroleum industry has addressed wax problems since its inception. Every year, considerable resources are expended on wax removal, which accordingly cause significant economic loss. As one of the materials in chemical treatments, polymeric compounds referred to as ''wax-crystal modifier'', is being widely used to improve flow properties and/or combat wax deposition for waxy crude oils. This article reviews the recent achievements with regard to the flow improvement and wax inhibition of waxy oils using traditional polymeric wax crystal modifiers, such as ethylene-vinyl acetate (EVA), poly(ethylene-butene) (PEB), and polyethylenepoly(ethylene-propylene) (PE-PEP), as well as the development of novel polymers for potential use in the near future. The goal of this review is to assist people understand the advances in this topic.

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“…A group of maleic anhydride-based copolymers was developed by Soni et al (2005Soni et al ( , 2008Soni et al ( , 2010. Some of examples are given in Fig.…”

Section: Newly Developed Polymersmentioning

confidence: 99%

Recent advances on mitigating wax problem using polymeric wax crystal modifier

Wei

2014

J Petrol Explor Prod Technol

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“…The interaction mechanism of modifiers and paraffin is not clearly, and a combination of several mechanisms involving nucleation, cocrystallization, and adsorption has been discussed (Jafari et al, 2008;Kuzmić et al, 2008;Al-Sabagh et al, 2009). All polymeric paraffin inhibitors are consisted of wax-like paraffinic part and a polar part, so that the paraffinic part functions by providing nucleation sites and co-crystallizing with the paraffin, while the polar part, dissimilar with the paraffin crystals, blocks the extensive growth of the paraffin matrices (Holder et al, 1965;Price et al, 1971;Soni et al, 2010), which enables the crude oil stream to remain pumpable, pourable, and filterable. The synthesized PAAs have the characters to be efficient paraffin crystal modifiers with the long hydrocarbon chain derived from the vegetable oil and the hydrophilic part (amide groups) in the main chain.…”

Section: Paraffin Crystal Morphology Studymentioning

confidence: 99%

Synthesis of new flow improvers from canola oil and application to waxy crude oil

Chen

Bai

Zhang

et al. 2016

Petroleum Science and Technology

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KEYWORDSCanola oil; flow improver; paraffin inhibition; polyamine amide; waxy crude oil ABSTRACT Several techniques are employed to mitigate the problems associated with the crystallization of paraffin during the production and/or transportation of waxy crude oil. One of these techniques is the addition of chemicals that depress the pour point of the oil and inhibit the formation of paraffin crystals. In this work, the chemicals, polyamine amide (PAA), are prepared by aminolysis and polycondensation from canola oil and polyamine as substrates. Nitrogen atoms are fixed in the main chain of the polymers to modify the polarity. The effectiveness of the PAAs on four crude oil was tested as pour point depressants as well as paraffin inhibiters. The highest pour point reduction depression was achieved as 12.6°C. Differential scanning calorimetry and paraffin crystal morphology studies were conducted on simulated crude oil to elucidate the mechanism of pour point reduction.

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“…Before doing any rheological measurement, diesel samples of treated and untreated were conditioned at 50°C for 30 min to remove previous shear and thermal history of the diesel fuel and to guarantee complete dissolution of the additives [27]. In a constant shear rate of 5 s −1 , the dynamic viscosities were measured over a temperature range between 20 and −20°C with a cooling rate of 1°C/min.…”

Section: Viscosity Measurementsmentioning

confidence: 99%