...Abstract Material selection for Monoethylene glycol (MEG) regeneration units is a challenge due to the high temperature combined with high salt content. The oxygen level is low, and carbon steel is a cost-effective choice. The corrosion rate of carbon steel is too high in neutral or acidic...

...INTRODUCTION ABSTRACT High pH (11-11.5) measured in Glycol units due to Monodiethanol amine (MDEA) carryover from sweetening units was a concern as it is generally considered that caustic cracking is possible at these conditions in equipment not subject to post weld heat treatment (PWHT). However...

...Gas Booster station (BS-170) was commissioned in 1978 and both Glycol reboiler and surge drum are in operation since commissioned. Both the vessels are horizontal and material of construction is carbon steel. During major shutdown, both the vessels were opened for internal inspection. After opening...

... in several multiphase flow software packages on the market. Glycol injection is applied to many gas transport pipelines to avoid hydrate formation. Mono Ethylene Glycol (MEG) is commonly used for this purpose; typically about 80 wt.% MEG is injected at the well head and the aqueous phase at the end...

... that have not been given much attention are how glycol and the consumption and replenishment rate of organic acids in the condensed water affects TLC. Abstract When the gas contains ethylene glycol (MEG) and organic acids these components will also dissolve in the water condensing on the pipe wall...

... heaters use 40% triethylene glycol (TEG) in the temperature range 220 to 400°F (104 °C to 204 °C) to aid separation of water from crude oil in the arctic. Specified pH range of the TEG is 8-10, but recent KOH additions produced pH from 12 to 14 in some of the heaters. This laboratory study evaluated...

...corrosion inhibitor micelles surfactant fluorescence critical micelle concentration emulsion flow loop MEG glycol INTRODUCTION Organic film-forming corrosion inhibitors used in oil and gas production usually contain active ingredients defined by a small number of chemical classes which...

... systems ”. Chemical Engineering Science , 55 , 2673 - 2686 , ( 2000 ). 11 Flaten , E. and Andreassen , J.-P. : “ The effect of Mono Ethylene Glycol on the Precipitation of Calcium Carbonate ”, Presented at 18th International Oil field Chemistry Symposium , 25.-28. March 2007 . 12...

... diffusion problems. CO2 corrosion models wet gas pipelines Mixed solvent electrolyte diffusion extension of Nernst-Planck equation activity coefficient extended UNIQUAC thermodynamic factor thermodynamic correction factor glycol The aim of this study has been to show the improvements of using...

.... corrosion problems related to tank manufacturing, transport and on-site erection, welding of stainless steel pipes, cleaning in place (CIP) and disinfection procedures, glycol systems and carbon dioxide recovery systems. Breweries Corrosion Fatigue Transport Welding CIP Disinfection Glycol Carbon...

... will make BioPDO very prospective and competitive as a bio-based glycol alternative to regular PG and EG heat transfer fluids for process cooling or heating applications. Corrosion data are needed in developing new BioPDO heat transfer fluid products. In this study, electrochemical and glassware immersion...

...Ethylene glycol is manufactured by the hydration of ethylene oxide. Diethylene glycol and triethylene glycol are manufactured by reaction of ethylene glycol with ethylene oxide. Glycols are characterized by their complete range of water solubility, affinity for water (hygroscopicity), moderate...

... that should be evaluated as part of a closed system treatment program. cleaning closed system filtration glycol molybdate nitrite corrosion control microbiological control deposition/scale control These factors are fundamental to any treatment program, however, there are other factors which must...

... pump modifications filtration corrosion fouling underdeposit corrosion fatigue odors glycol brine chemical cleaning biocides vapor phase corrosion inhibitors INTRODUCTION Industry has always been concerned with improving reliability of process equipment and avoiding unscheduled production...

...Abstract The pH-stabilization method is a cost effective and reliable way to control bottom of line corrosion in gas/condensate pipelines where glycol is used as hydrate preventer. Increasing the pH to 6.5-7.5 facilitates the formation of a protective iron carbonate film on the steel surface...

... technologies and highlights their advantages and disadvantages. azole closed system glycol molybdate nitrite phosphate phosphonate INTRODUCTION The dramatic rise in the number of electronic devices in the office place and the heat they put into the environment, coupled with demands for a comfortable...

.... Temp. °C Max. pCO₂ MPa Max. Glycol % Italiana Mineraria ^* 10″/12 km 1973 MBTNa + inh. 50 .17 70-80 Petroland (Netherlands) ^* 1979 MBTNa + inh. 75 .07-.31 80 Pecorade, glycol contactor ^* 1982 MBTNa 15%H₂S+9...

...Numerical values of f are listed in Table 1 . In the present paper the mass percentage M% of monoethylene glycol and D% of diethylene glycol in the solution will be used rather than the percentage of water. As shown, high concentrations of glycol are needed to obtain...

... protection criteria which may be much more stringent than an open system such as a cooling tower. Because of government regulations on ethylene glycol based fluids, various types of fluids and inhibitors were evaluated as potential substitutes. None of these performed as well as existing inhibited glycol...

...Table 1 provides details on the dehydration inhibitors tested. Inhibitor N was used as a base for all inhibitor packages. Two of the inhibitors, S and M, incorporated nitrite, as well as "N." Nitrite is a ferrous metal corrosion inhibitor, common to both water and glycol systems. Inhibitor M added...