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Comparison Between Distillation And Karl Fischer Crude Oil Pdf

comparison between distillation and karl fischer crude oil pdf

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The most commonly used technique for water content determination is Karl-Fischer titration with electrometric detection, requiring specialized equipment. When appropriate equipment is not available, the method can be performed through visual detection of a titration endpoint, which does not enable an analysis of colored samples. Here, we developed a method with spectrophotometric detection of a titration endpoint, appropriate for moisture determination of colored samples.

Analyzing Water in Oil

These metrics are regularly updated to reflect usage leading up to the last few days. Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts. The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online.

Clicking on the donut icon will load a page at altmetric. Find more information on the Altmetric Attention Score and how the score is calculated. The efficiency of azeotropic distillation and oven evaporation techniques for trace determination of water in oils has recently been questioned by the National Institute of Standards and Technology NIST , on the basis of measurements of the residual water found after the extraction step.

A procedure is described that makes it possible to correct the results for dilution errors as well as for chemical interference effects caused by the oil matrix. The corrected values were found to be in the range of 0. Corresponding author. View Author Information. Cite this: Anal. Article Views Altmetric -. Citations Abstract The efficiency of azeotropic distillation and oven evaporation techniques for trace determination of water in oils has recently been questioned by the National Institute of Standards and Technology NIST , on the basis of measurements of the residual water found after the extraction step.

Cited By. This article is cited by 20 publications. Frink and Daniel W. Analytical Chemistry , 88 16 , Analytical Chemistry , 85 2 , A lanthanide doped metal-organic framework demonstrated as naked eye detector of a trace of water in organic solvents including alcohols by monitoring the turn-on of luminescence. Journal of Photochemistry and Photobiology A: Chemistry , , Determination of water content of crude oil by azeotropic distillation Karl Fischer coulometric titration.

Analytical and Bioanalytical Chemistry , 19 , An interdigitated impedance microsensor for detection of moisture content in engine oil. Nanotechnology and Precision Engineering , 3 2 , Luminescent macrocyclic Sm III complex probe for turn-off fluorescent and colorimetric water detection in organic solvents and liquid fuels. Sensors and Actuators B: Chemical , , Patil , Daniel W. Commercial Applications of Ionic Liquids. Microchemical Journal , , Nanomaterials for luminescent detection of water and humidity.

The Analyst , 2 , Maji , K. Sundararajan , K. Uranyl tris nitrato as a luminescent probe for trace water detection in acetonitrile.

Luminescence , 33 3 , A simple method to determine the water content in organic solvents using the 1 H NMR chemical shifts differences between water and solvent. Fuel Processing Technology , , The Journal of Chemical Thermodynamics , , Journal of Food Quality , 39 4 , Fluid Phase Equilibria , , Investigation on hydrogen production by catalytic steam reforming of maize stalk fast pyrolysis bio-oil.

International Journal of Hydrogen Energy , 39 26 , Ghanadzadeh Gilani , A. Ghanadzadeh Gilani , S. Pair your accounts. Your Mendeley pairing has expired. Please reconnect. This website uses cookies to improve your user experience. By continuing to use the site, you are accepting our use of cookies. Read the ACS privacy policy. Recently Viewed.

Fuels – Paraffins, aromatics, naphthenes, olefins

For decades the accepted method for measuring water content in crude oils and other hydrocarbon stocks has been the centrifuge method. The centrifuge method is relatively quick and easy. However, it sometimes is limited ability to accurately measure water content, particularly if the hydrocarbon stock has a high solubility for water. Similar records in OSTI. GOV collections:.

The determination of water content in crude oil is important for oil transportation, refining, and trade. However, the sensitivity and accuracy of the conventional azeotropic distillation AD method are inadequate. Karl Fischer titration methods may give false high results because of the reducing sulfur compounds in crude oil. The present study developed an azeotropic distillation Karl Fischer coulometric titration AD-KFCT method which required a modified instrument and a new calibration procedure. The method was modified to decrease the interference caused by reducing sulfur compounds. A certified reference material for water content in liquid was used to determine the recovery of water mass achieved using the AD-KFCT method.

These metrics are regularly updated to reflect usage leading up to the last few days. Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts. The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric. Find more information on the Altmetric Attention Score and how the score is calculated. The efficiency of azeotropic distillation and oven evaporation techniques for trace determination of water in oils has recently been questioned by the National Institute of Standards and Technology NIST , on the basis of measurements of the residual water found after the extraction step.


Request PDF | Determination of water content of crude oil by Water content of pyrolysis oil: Comparison between Karl Fischer titration.


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Ritz, Charles L. This paper will outline a procedure for the rapid determination of water content in the effluents obtained from laboratory core floods. The procedure makes use of the Karl Fischer method, an established procedure for the quantitative analysis of water. It procedure for the quantitative analysis of water.

Lize M. Rita C. Nunes c.

High water content of lubricating oils negatively impacts the operation and longevity of the oils and the mechanical equipment components being lubricated.

В шифровалке они считались людьми второго сорта и не очень-то ладили с местной элитой. Ни для кого не было секретом, что всем в этом многомиллиардном курятнике управляли шифровальщики. Сотрудников же лаборатории безопасности им приходилось терпеть, потому что те обеспечивали бесперебойную работу их игрушек. Чатрукьян принял решение и поднял телефонную трубку, но поднести ее к уху не успел. Он замер, когда его взгляд упал на монитор.

 Куда мы едем. Парень расплылся в широкой улыбке. - А то ты не знаешь.

 Данные? - спросил Бринкерхофф.  - Какие такие данные. Танкадо отдал кольцо. Вот и все доказательства.

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