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Keywords: organic acid
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Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10490
... molecular weight organic acids. Thermodynamic considerations based on pH and electrochemical oxidation-reduction potential (ORP) as diagramed in Pourbaix format. Effects of temperature and pressure changes. The effect of accumulated solids. Contamination and temperature lowering by injecting...
Proceedings Papers

Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-8917
... (HCl)-containing acids work well in carbonate formations. Combinations of HF and HCl, along with organic acids like acetic and formic acid are also used, depending upon mineralogy and scale composition. A common acidizing procedure consists of several steps, including injection of a solvent, an acidic...
Proceedings Papers

Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7598
... potential for corrosion damage. Mitigating this corrosion involves several strategies: 8-10 flowline corrosion riser corrosion organic acid acid Subsurface Corrosion organo-sulfur compound Publication Division crude oil naphthenic acid materials and corrosion Downstream Oil & Gas...
Proceedings Papers

Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7275
... in the bulk aqueous phase. The water condensation rates used in the experiments were calculated from multiphase flow simulations for the planned pipelines. The experimental results showed that the condensed water contained both MEG and acetic acid. With this low CO 2 partial pressure, the organic acids...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5553
... and hazardous chemicals such as HCI with thiourea for cleaning boilers to much less hazardous (and environmentally improved) organic acids and chelating agents. Initially, necessary corrosion inhibitors for Hel contained very hazardous chemicals including arsenic compounds and polyaromatic hydrocarbons. Over...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5826
... and the electrochemical reactions on the bare steel surface. As many sweet systems contain organic acids that affect the solution chemistry and the formation and stability of the FeCO 3 corrosion product films, some specific effect of organic acids is also addressed. pipeline corrosion riser corrosion materials...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5763
... the implementation of these new "green" CI successful and sustainable. materials and corrosion pipeline corrosion subsurface corrosion flowline corrosion riser corrosion chemistry concentration publication division upstream oil & gas organic acid corrosion rate texas 77084 houston permission...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5683
... solution publication division texas 77084 flowline corrosion riser corrosion organic acid sulfuric acid nitrogen immersion test manuscript alloy corrosion resistance permission houston acid solution materials and corrosion upstream oil & gas ni-cr-mo alloy acid test sample formic...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-6147
... permission wax inhibition co 2 water content asphaltene remediation publication division houston downhole condition organic acid concentration scale remediation brine water sample equilibrium wax remediation ion product formation brine acidizing remediation of hydrates scale inhibition...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5723
... that the lack of knowledge about possible impact of some important parameters, like small amount of H2S and organic acids, on the corrosion rate makes the interpretation of the data often questionable. Other discussed issues were the mechanism of localized corrosion and calculation of the corrosion rate based...
Proceedings Papers

Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-3729
... ABSTRACT With the recent increased development of advanced biofuel and bio-based chemical processing plants, materials selections need to be done for many novel plant designs. Organic acids are one of the corrosion-causing byproducts in these plants, along with aqueous carbonic acids...
Proceedings Papers

Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-4057
... to the solubility of iron in the condensing phase. Therefore, TLC rate modeling typically involves a combination of condensation rate calculations and chemical equilibrium calculations. The presence of organic acid will reduce the pH and increase the iron solubility in the condensing water. It is therefore...
Proceedings Papers

Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-4382
... ABSTRACT When the gas contains ethylene glycol ( MEG ) and organic acids these components will also dissolve in the water condensing on the pipe wall and affect the potential corrosion rate and the protective properties of the corrosion product film that forms on the pipe wall. The film...
Proceedings Papers

Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2185
... turnaround corrosion medium vacuum gasoil side cut side cut organic acid naphthenic acid corrosion morphology West Conshohocken Naphthenic Acid Corrosion on a Extra-Heavy Crude Oil Upgrader Medium Vacuum Gasoil Side cut Piping Hon C. Ng, Victor Gutiérrez, Diogmary Arreaza, and Fernando De Abreu...
Proceedings Papers

Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2290
... sensitive environments are proposed. The primary objective of the paper is to initiate discussions on the standardization of pipeline design for sweet TLC service. Subsurface Corrosion organic acid Pipeline Corrosion well integrity Publication Division flowline corrosion riser corrosion...
Proceedings Papers

Paper presented at the CORROSION 2012, March 11–15, 2012
Paper Number: NACE-2012-1129
... ABSTRACT ABSTRACT Loop testing has been carried out to identify the corrosion for 13Cr SS, modified 13Cr SS and 15Cr SS under 2 MPa CO 2 in 20,000 ppm NaCl solution with varying concentrations of H 2 S and organic acids at a temperature of 40°C. It is found that the corrosion behaviors...
Proceedings Papers

Paper presented at the CORROSION 2012, March 11–15, 2012
Paper Number: NACE-2012-1214
... rates due to organic acids (represented by acetic acid) and acidic pH corrosion through mechanistic modeling to show that APB are capable of very fast MIC pitting and mass transfer limitation on sulfate diffusion from the bulk-fluid phase to the biofilm cannot support very fast pitting caused by sulfate...
Proceedings Papers

Paper presented at the CORROSION 2011, March 13–17, 2011
Paper Number: NACE-11060
... Pipeline Corrosion well integrity adsorption Subsurface Corrosion oil phase materials and corrosion Upstream Oil & Gas droplet flowline corrosion organic acid steel nitrogen Corrosion Measurement riser corrosion model oil corrosion rate contact angle naphthenic acid...

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