Academic literature on the topic 'Caustic wash tower'

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Journal articles on the topic "Caustic wash tower"

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Mehdi, Seifollahi, Forootan Ashkan, and Bahrami Reyhan Sajjad. "Examination of the Reasons for the Formation of Red Oil in Spent Caustic from Olefin Plant." April 1, 2017. https://doi.org/10.5281/zenodo.1130381.

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Due to the complexity of olefinic plants, various environmental pollutants exist such as NO<sub>x</sub>, CO<sub>2</sub>, Tar Water, and most importantly Spent Caustic. In this paper, instead of investigating ways of treating this pollutant, we evaluated the production in relation to plant&rsquo;s variable items. We primarily discussed the factors affecting the quality of the output spent caustic such as impurities in the feed of olefin plant, the amount of injected dimethyl disulfide (DMDS) in furnaces, variation in feed composition, differences among gas temperatures and the concentration of
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Conference papers on the topic "Caustic wash tower"

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Wills, Kathleen Armistead, and Kwadwo O. Sarpong. "Survey on Crude Unit Overhead Corrosion Control Practices." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13109.

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Abstract This paper summarizes the survey results on crude unit overhead corrosion control practices. The survey was conducted by TG 342 which was assigned to update NACE(1) publication 34109 “Crude Distillation Unit – Distillation Tower Overhead System Corrosion”. As part of the survey, refiners provided responses about their respective chemical injection and monitoring practices. The survey focused mainly on atmospheric towers and included the following topics: overhead water wash, caustic addition, desalter acidification, filming/corrosion inhibitor and neutralizer injection, salt point and
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Tracy, Robert P., and Barry R. Chuba. "Corrosion Resistance, Application, and Economics of Electroless Nickel Coatings in Sodium Hydroxide Production." In CORROSION 1987. NACE International, 1987. https://doi.org/10.5006/c1987-87462.

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Abstract Laboratory testing under static and controlled velocity conditions show that electroless nickel (EN) coatings have excellent corrosion resistance in brine, cooling tower water, and caustic environments employed in the production of sodium hydroxide. Corrosion rates of EN coatings are lower than other alloys presently used and economics for their use in process equipment is shown to be extremely favorable. Heat treatment was found to improve the corrosion/erosion resistance of the coating in brine and cooling tower water but no advantage was detected in caustic environments.
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Baumert, K. L., A. W. Devaux, and B. K. Heft. "Continuing Safe Operation of a Stress Cracked Distillation Tower." In CORROSION 1991. NACE International, 1991. https://doi.org/10.5006/c1991-91174.

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Abstract A code repair was effected on the pressure shell of a stainless clad column which was damaged by caustic stress cracking. The clad liner was adequately repaired before the tower was placed back in service. Crack growth monitoring was done using angle beam UT while the vessel was on stream for about one and one half years to insure that cracks were not propagating into the pressure shell.
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Al Rabie, Yousif A., and Iyad Al-Buraiki. "Hydrochloric Acid Corrosion of a Venturi Gas Scrubber in a Continuous Catalyst Regeneration (CCR) Unit." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17770.

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Abstract A venturi gas scrubber (ejector) made of Nickel-Chromium-Molybdenum (Ni-Cr-Mo) alloy UNS N06200 located in a Continuous Catalyst Regeneration (CCR) unit. failed prematurely after 1.5 years in operation. The scrubber was used to neutralize hydrochloric acid (HCl) and chlorine present in the regeneration tower vent gas using caustic injection (1 wt.% NaOH). A metallurgical failure analysis investigation concluded that the scrubber had failed due to hydrochloric acid (HCl) corrosion. In general, many alloys are susceptible to HCl corrosion at different acid concentrations. Originally, th
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