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Influence Of Organic Acids Released During Hydrothermal Liquefaction Of Biomass On Corrosion Of Candidate Reactor Alloys

Picture for Influence Of Organic Acids Released During Hydrothermal Liquefaction Of Biomass On Corrosion Of Candidate Reactor Alloys
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Product Number: 51321-16612-SG
Author: Minkang Liu/ Yimin Zeng/ Xue Han/ Jing-Li Luo
Publication Date: 2021
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Hydrothermal liquefaction (HTL) is a promising thermochemical pathway developed to convert wet biomass or waste biomass into valuable bio-oil and biochemical products in hot pressurized water medium. Over the past few years, some studies have initiated to investigate the corrosion challenges under the HTL processes for the industrial-scale deployment of this conversion technology. Among them, the impact of organic acids generated during HTL processes on the corrosion of refinery reactor alloys remains as a puzzle. In this work, static autoclave tests under organic acid-containing HTL conditions were performed on candidate stainless alloys. The formed corrosion products after each exposure were characterized using advanced microscopic characterizations techniques to obtain the related corrosion modes and extents of the alloys. This paper presents the preliminary findings on this aspect.

Keywords: hydrothermal Liquefaction, biomass, biofuel, corrosion, organic acids, nickelbased alloys

Hydrothermal liquefaction (HTL) is a promising thermochemical pathway developed to convert wet biomass or waste biomass into valuable bio-oil and biochemical products in hot pressurized water medium. Over the past few years, some studies have initiated to investigate the corrosion challenges under the HTL processes for the industrial-scale deployment of this conversion technology. Among them, the impact of organic acids generated during HTL processes on the corrosion of refinery reactor alloys remains as a puzzle. In this work, static autoclave tests under organic acid-containing HTL conditions were performed on candidate stainless alloys. The formed corrosion products after each exposure were characterized using advanced microscopic characterizations techniques to obtain the related corrosion modes and extents of the alloys. This paper presents the preliminary findings on this aspect.

Keywords: hydrothermal Liquefaction, biomass, biofuel, corrosion, organic acids, nickelbased alloys

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