Anti-coking application of TiO2-Al2O3 composite coating prepared by MOCVD

Gong, Xianlong; Zou, Tengxiu; Deng, Songhui; Zhu, Quan

doi:10.1080/00202967.2020.1692535

Cited by 9 publications

(3 citation statements)

References 24 publications

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“…11 Oxidation could also be effectively inhibited by coating a tube with antioxidation layers. 12,13 Compared with the previous efforts, using antioxidants is considered to be the most convenient way to improve the oxidative stability of hydrocarbon fuels. 14−16 However, antioxidants with small molecules are easy to volatilize at high temperatures, which limits the effect in practical application.…”

Section: Introductionmentioning

confidence: 99%

“…It has been reported that the deterioration of hydrocarbon fuels could be alleviated by deoxygenation or desulfurization . Oxidation could also be effectively inhibited by coating a tube with antioxidation layers. , Compared with the previous efforts, using antioxidants is considered to be the most convenient way to improve the oxidative stability of hydrocarbon fuels. − However, antioxidants with small molecules are easy to volatilize at high temperatures, which limits the effect in practical application . Therefore, further efforts have been directed toward macromolecular antioxidants with exceptional thermal stability. , Hyperbranched polymer-based materials have captured extensive attention in various fields over the past few years owing to tailorable structures and correspondingly unique properties. − Due to their modifiable potential, the polymers are expected to be endowed with new functions in synthesis to meet the actual demand of high-temperature antioxidation.…”

Section: Introductionmentioning

confidence: 99%

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Strategically Designed Hyperbranched Polyglycerol as an Efficient Integrated Additive for Hydrocarbon Fuels

Jiang

Shao

et al. 2023

J. Phys. Chem. C

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In this study, palmitoyl and hindered phenolic hyperbranched polyglycerol (CBHPG), with hyperbranched polyglycerol (HPG) as the structural core and hindered phenol or alkyl chain as the decorated shell, has been strategically designed and synthesized as an efficient integrated additive to enhance the energy efficiency and inhibit the oxidation coking of hydrocarbon fuels. The superior thermal stability and solubility of CBHPG were confirmed by thermal gravimetric analysis and dynamic light scattering. In the presence of CBHPG with high antioxidant activity, the oxidation induction time of n-undecane increased more than 2-fold at 170 °C. In deposition tests, the amphiphilic macromolecule CBHPG showed excellent performance with 58% oxidation coking inhibition rate of Chinese Jet Fuel (RP-3). The Jet Fuel Thermal Oxidation Stability test at 355 °C also exhibited that CBHPG could greatly reduce the deposit of RP-3 by decreasing the deposit rating from >4 to <1. In cracking experiments, the addition of 0.1 wt % CBHPG with sufficient polymerization could increase the conversion of n-undecane by 17.6%, with the corresponding heat sink by 6.1% at 675 °C. The above results indicated that CBHPG could efficiently enhance the performance of hydrocarbon fuels due to multipurposes in antioxidation, coking inhibition, and cracking promotion. CBHPG with a strategically designed structure as an integrated additive shows great promise in improving the energy efficiency and safety in future advanced aircraft.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Strategically Designed Hyperbranched Polyglycerol as an Efficient Integrated Additive for Hydrocarbon Fuels

Jiang

Shao

et al. 2023

J. Phys. Chem. C

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“…In Zhang et al 20 and Gong et al, 21 the TiO 2 coating was deposited on the surface of the 310S stainless steel by atmospheric pressure chemical vapor deposition. An atmospheric pressure cracking system was set up for evaluating the anti‐coking property of TiO 2 coating with n ‐hexane, cyclohexane, benzene, and RP‐3 as feedstock.…”

Section: Introductionmentioning

confidence: 99%

Ti–Mn coating prepared by tungsten inert gas cladding and its inhibiting coking property

Wang

et al. 2020

Asia-Pacific J Chem Eng

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The Ti–Mn cladding layers with different ratios were prepared on the surface of 310S steel using tungsten inert gas (TIG) technology for inhibiting coking in ethylene cracking, and the cladding specimens were oxidized by muffle furnace for 10 h at 800°C. The coking evaluation tests of the oxidized specimens with different Ti–Mn powder ratios were carried out with light naphtha at 850°C. The results show that when the ratio of Ti to Mn was 3:1, a protective layer of TiO2–TinO2n‐1–Mn5O8 was formed on the surface of specimen, and with the decrease of Ti element content, unstable Fe‐Ti spinel compounds appeared on the surface. When the ratio of Ti to Mn is 1:3, 1:2, and 1:1, the coking inhibition rate was 40%, 46%, and 59%, respectively. Catalytic coke formed on the surface of coating. When the ratio of Ti to Mn was 3:1, the inhibiting coking rate on the surface of the coating reached 80%, and the inhibiting coking performance was optimal, which inhibited the catalytic coking of Fe and Ni metal particles. With the increase of Ti content and the decrease of Mn content, the graphitization degree of coke decreased according to Raman spectrum.

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Anti-Coking Performance of Ethyl Benzene Pyrolysis of Silicon-Based Films Prepared through Plasma-Enhanced Chemical Vapour Deposition

Wang

Tang

et al. 2022

Silicon

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Anti-coking application of TiO₂-Al₂O₃ composite coating prepared by MOCVD

Cited by 9 publications

References 24 publications

Strategically Designed Hyperbranched Polyglycerol as an Efficient Integrated Additive for Hydrocarbon Fuels

Strategically Designed Hyperbranched Polyglycerol as an Efficient Integrated Additive for Hydrocarbon Fuels

Ti–Mn coating prepared by tungsten inert gas cladding and its inhibiting coking property

Anti-Coking Performance of Ethyl Benzene Pyrolysis of Silicon-Based Films Prepared through Plasma-Enhanced Chemical Vapour Deposition

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