Corrosion of stainless steels in the riser during co-processing of bio-oils in a fluid catalytic cracking pilot plant

Brady, Michael P.; Keiser, James R.; Leonard, Donovan N.; Zacher, Alan H.; Bryden, Kenneth J.; Weatherbee, G.D.

doi:10.1016/j.fuproc.2017.01.041

Cited by 25 publications

(32 citation statements)

References 41 publications

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“…Characterization of the corrosion products followed procedures described by Brady, et al 12 The cross sections were prepared by standard metallographic techniques using nonaqueous polishing media to retain any aqueous soluble corrosion products (particularly chlorides) which may have formed. Characterization was initially accomplished using x-ray diffraction (XRD), scanning electron microscopy (SEM) equipped with energy dispersive x-ray spectroscopy (EDS) and electron probe microanalysis (EPMA) with EDS and wavelength dispersive spectroscopy (WDS) techniques.…”

Section: Methodsmentioning

confidence: 99%

“…Although corrosivity of biofuels is an active area of research, [6][7][8][9][10] comparatively few studies of process equipment corrosion have been pursued. [11][12][13] Process equipment will be exposed to temperatures as high as ∼550°C, with biomass feedstock decomposition products and aggressive O, S, C, H, Cl, etc. containing species potentially encountered.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, in situ alloy test sample exposures in operating biomass pyrolysis and related systems have been pursued, as well as study of operated components run in such systems. [10][11][12] The present work reports an advanced microstructural characterization study of the corrosion products formed on a 304L (UNS S30403 (1) ) stainless steel component operated in a biomass fast pyrolysis system.…”

Section: Introductionmentioning

confidence: 99%

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Degradation of Components After Exposure in a Biomass Pyrolysis System

et al. 2019

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X-ray diffraction, electron probe microanalysis, and scanning transmission electron microscopy with focused ion beam lift-out sample preparation techniques were used to study corrosion products in a 304L (UNS S30403) stainless steel fluidized-bed reactor segment from Iowa State University's Pyrolysis Process Development Unit Facility. This reactor segment is particularly valuable because a detailed history of operation time, temperature, and biomass feedstock was available. As previously reported for a range of stainless steel pyrolysis-related equipment, external scaling and internal attack along alloy grain boundaries were observed. The scaling was primarily associated with O, although S, Ca, K, Si, Mg, and P were also detected in the outer scale regions. However, unlike those other recent advanced characterization analyses, in this instance the internal alloy grain boundary attack was not directly related to S. Rather, only internal oxidation and localized nanoporosity were observed along the alloy grain boundaries, with associated local nanoscale Cr depletion and Ni enrichment. Mechanistic implications of this finding are discussed.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Degradation of Components After Exposure in a Biomass Pyrolysis System

et al. 2019

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“…In general, the results obtained were consistent with the experimental data published in the literature. On the other hand, Brady et al . pointed out the need to solve potential impacts of co‐feeding bio‐oil before the industrial implementation of the process, such as corrosion of materials used in the FCC unit.…”

Section: Bio‐oil Upgrading To Fuels and Platform Chemicals By Catalytmentioning

confidence: 99%

Recent research progress on bio‐oil conversion into bio‐fuels and raw chemicals: a review

Valle

Remiro

García-Gómez

et al. 2018

J of Chemical Tech & Biotech

139

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Recent advances in lignocellulosic biomass valorization for producing fuels and commodities (olefins and BTX aromatics) are gathered in this paper, with a focus on the conversion of bio-oil (produced by fast pyrolysis of biomass). The main valorization routes are: (i) conditioning of bio-oil (by esterification, aldol condensation, ketonization, in situ cracking, and mild hydrodeoxygenation) for its use as a fuel or stable raw material for further catalytic processing; (ii) production of fuels by deep hydrodeoxygenation; (iii) ex situ catalytic cracking (in line) of the volatiles produced in biomass pyrolysis, aimed at the selective production of olefins and aromatics; (iv) cracking of raw bio-oil in units designed with specific objectives concerning selectivity; and (v) processing in fluidized bed catalytic cracking (FCC) units. This review deals with the technological evolution of these routes, in terms of catalysts, reaction conditions, reactors, and product yields. A study has been carried out on the current state-of-knowledge of the technological capacity, advantages and disadvantages of the different routes, as well as on the prospects for the implementation of each route within the scope of the Sustainable Refinery. /jctb 2 -C 4 olefins 147 a % Relative area: Percentage of total peak area detected by GC/MS semi-quantitative analysis.

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“… An efficient method for energy transformation [17] (spares fuel wood).  Produces advanced natural compost which can supplement or even supplant concoction manures [18].…”

Section: Advantages Of Biogasmentioning

confidence: 99%

A Review on Biogas Plants and Bio energy Generation Methods: Merits and Demerits

Diaz¹

2017

SREYAS IJST

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The decrease and unreasonable utilization of petroleum derivatives and the effect of greenhouse gases on nature are driving exploration into sustainable power source development from natural assets and waste. The worldwide vitality request is high, and a large portion of this energy is developed from fossil fuels. Recent investigations report that Anaerobic Digestion (AD) is a proficient option innovation that joins bio-fuel yield with reasonable waste administration; and, different mechanical patterns exist in the biogas business which upgrades the generation and nature of biogas. Profound interests in AD are relied upon to meet with the expanding accomplishments because of the minimal effort of accessible nourish stocks and the extensive variety of employments for biogas (i.e., for warming, power and fuel). Biogas formation is urged in numerous countries to build up the commercial market and offers a conservative option for bio-energy generation. In India, many States are empowering their kin and supporting them financially to build bio plants. The goal of this paper is to give a review of biogas plants, sorts of waste used to deliver biogas, approaches to produce biogas and issues in the biogas generation.

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Corrosion of stainless steels in the riser during co-processing of bio-oils in a fluid catalytic cracking pilot plant

Cited by 25 publications

References 41 publications

Degradation of Components After Exposure in a Biomass Pyrolysis System

Degradation of Components After Exposure in a Biomass Pyrolysis System

Recent research progress on bio‐oil conversion into bio‐fuels and raw chemicals: a review

A Review on Biogas Plants and Bio energy Generation Methods: Merits and Demerits

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