Influence of CaO2 additives on the properties of Fe–WB-based composite lining deposited by centrifugal SHS on the inner surface of steel pipe

Singsarothai, Saowanee; Khanghamano, Mathana; Rachphet, Vishnu; Niyomwas, Sutham

doi:10.3103/s1061386216030110

Cited by 2 publications

(1 citation statement)

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“…Unique materials were developed by controlled high-temperature combustion as a result of synthesis by SHS [24]. The SHS method offers a unique method for the preparation of modern, highly active ceramic catalysts, as well as carriers with controlled composition and properties which satisfy the special requirements of various types of reactions [25][26][27][28][29][30][31][32][33][34][35][36][37]. The combustion temperature can reach up to 3000 • C (depending on the composition of the system) due to the exothermic reactions that occur within just a few minutes after the start of SHS synthesis.…”

Section: Introductionmentioning

confidence: 99%

Direct Reduction in Greenhouse Gases by Continuous Dry (CO2) Reforming of Methane over Ni-Containing SHS Catalysts

et al. 2021

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The world of energy is on the cusp of profound transformation. Hydrogen or hydrogen-containing fuel mixtures in the form of synthesis gas, as carriers of clean energy, will be in the short term among the most efficient solutions to pressing environmental problems, reducing the amount of greenhouse gases as well as pollution of cities and dependence on oil-based fuels. Carbon dioxide conversion of methane is the most promising method for the production of synthesis gas due to the simultaneous consumption of two greenhouse gases and, accordingly, a successful solution to environmental problems. Ni/Mn-based catalysts have been prepared by self-propagating high-temperature synthesis (SHS) for this process. The samples were characterized by X-ray diffraction, scanning electron microscopy, and nitrogen porosimetry. The effects of the catalysts’ composition on activity, selectivity, and product yield were investigated. The influence of the content of Ni, Mn on the behavior of catalysts has been established. Comparison of spinels with different component ratios showed that they have a defective structure. Non-stoichiometric spinels with highly defective catalyst structures were obtained due to very high heating and cooling rates during SHS. They work as active sites, which underlies the high activity of the catalysts.

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