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Effect Of Organic Acids In Pyrolysis Oils On The Corrosion Of Constructional Materials For Oil Storage And Transportation

Effect of Organic Acids in Pyrolysis Oils on the Corrosion of Constructional Materials for Oil Storage and Transportation
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Due to the increase in world’s population and technologies, and the limited fossil fuel reserves, efforts have been taken to seek alternative energy resources, such as bioenergy that is produced from renewable biomass, to meet the increasing need for energy. The feedstocks for bioenergy production can include the waste biomass from forestry and agricultural sectors and various industries such as food processing industry and pulp and paper industry, making a profit while saving costs from waste management. 

Product Number: 51322-18054-SG
Author: Xue Han, Kaiyang Li, Yimin Zeng
Publication Date: 2022
Industries: Corrosion Monitoring and Control , Coatings
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Pyrolysis oils contain various types of organic acids that may cause corrosion issues to the constructional materials of oil containers. In this work, immersion tests were performed at 60°C for 7 days to identify the corrosion susceptibility of a carbon steel UNS K02700 to pyrolysis oils provided by different suppliers. The acidity of pyrolysis oils was characterized using total acid number (TAN), carboxylic acid number (CAN) and phenolic acid number (PhAN). The corrosion rates were measured using weight loss method, and the corroded surfaces were examined using scanning electron microscopy combined with the energy dispersive X-ray spectroscopy (SEM/EDS). Acid corrosion seems to be influenced by CAN based on the preliminary results. Recommendations were made for future work. 

Pyrolysis oils contain various types of organic acids that may cause corrosion issues to the constructional materials of oil containers. In this work, immersion tests were performed at 60°C for 7 days to identify the corrosion susceptibility of a carbon steel UNS K02700 to pyrolysis oils provided by different suppliers. The acidity of pyrolysis oils was characterized using total acid number (TAN), carboxylic acid number (CAN) and phenolic acid number (PhAN). The corrosion rates were measured using weight loss method, and the corroded surfaces were examined using scanning electron microscopy combined with the energy dispersive X-ray spectroscopy (SEM/EDS). Acid corrosion seems to be influenced by CAN based on the preliminary results. Recommendations were made for future work. 

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Product Number: 51322-17759-SG
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Product Number: 51322-17552-SG
Author: Manuela Nimmervoll, Roland Haubner, Gregor Mori, Stefan Hönig
Publication Date: 2022
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Pyrolysis processes of post-consumer plastics are a promising chemical recycling route and a good alternative to disposal. Nevertheless, these processes are challenging for metallic materials since chlorine containing materials or biological components inside the feedstock can yield HCl and H2S, respectively, during cracking. In combination with high temperatures of the reactor zone metallic construction materials can be attacked by high-temperature corrosion.
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Product Number: 51322-17584-SG
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