Reduction of nitrogen oxides in diesel exhaust: Prospects for use of synthesis gas

Кириллов, В. А.; Smirnov, E. I.; Amosov, Yu. I.; Bobrin, A. S.; Belyaev, V. D.; Sobyanin, V. A.

doi:10.1134/s0023158409010030

Cited by 13 publications

(7 citation statements)

References 21 publications

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“…In particular, methanol is considered as the most promising alternative energy source. For instance, methanol can be used both in classical internal combustion engines and in special fuel cells for electricity production. , It is also known that spark and diesel engines operated on fuel with addition of hydrogen or synthesis gas generate much lower level of harmful exhausts at an even higher engine efficiency. , The latter is of special interest due to the possibility of hydrogen and synthesis gas production from methanol right on board of the car. Previously, it was shown that both hydrogen and synthesis gas can be produced by the catalytic conversion of methanol on platinum.…”

Section: Introductionmentioning

confidence: 99%

Mechanistic Study of Methanol Decomposition and Oxidation on Pt(111)

et al. 2013

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Decomposition and oxidation of methanol on Pt(111) have been examined between 300 and 650 K in the millibar pressure range using in situ ambient-pressure X-ray photoelectron spectroscopy (XPS) and temperature-programmed reaction spectroscopy (TPRS). It was found that even in the presence of oxygen, the methanol decomposition on platinum proceeds through two competitive routes: fast dehydrogenation to CO and slow decomposition via the C–O bond scission. The rate of the second route is significant in the millibar pressure range, which leads to a blocking of the platinum surface by carbon and to the prevention of further methanol conversion. As a result, without oxygen, the activity of Pt(111) converted to a turnover frequency is ∼0.3 s–1 at 650 K. The activity strongly increases with oxygen content, achieving 20 s–1 in an oxygen-rich mixture. The main products of methanol oxidation were CO, CO2, H2, and H2O. The CO selectivity as well as the H2 selectivity decrease with the increase in oxygen content. It means that the main reaction route is the methanol dehydrogenation to CO and hydrogen; however, in the presence of oxygen, CO oxidizes to CO2 and hydrogen oxidizes to water. At room temperature, the C1s spectra contain weak features of formate species. This finding points out that the “non-CO-involved” pathway of methanol oxidation realizes on platinum as well. However, the TPRS data indicate that at least under the oxygen-deficient conditions the methanol dehydrogenation pathway dominates. A detailed reaction mechanism of the decomposition and oxidation of methanol agreeing with XPS and TPRS data is discussed.

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Section: Introductionmentioning

confidence: 99%

Mechanistic Study of Methanol Decomposition and Oxidation on Pt(111)

et al. 2013

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“…The technology provides stable ICE starting in winter due to combined effect of warmed up heat-carrier and hydrogenenriched fuel. Synthesis gas can be produced from diesel and biodiesel fuels, bioethanol, other biomass-derived fuels that widens its application opportunities as ICE fuel additive and NO x reducing agent [20]. The proposed technology represents initial step of widescale works on the development of energy-efficient engines.…”

Section: Resultsmentioning

confidence: 99%

Synthesis gas generation on-board a vehicle: Development and results of testing

Кириллов

Sobyanin

Kuzin

et al. 2012

International Journal of Hydrogen Energy

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“…The technology provides stable ICE starting in winter due to combined effect of warmed up heat-carrier and hydrogen enriched fuel. Synthesis gas can be produced from diesel and biodiesel fuels, bioethanol, other biomass-derived fuels that widens its application opportunities as ICE fuel additive and NOx reducing agent [14,15]. The proposed technology represents initial step of wide scale works on the development of energy-efficient engines.…”

Section: Discussionmentioning

confidence: 99%

Prospects of engine building transformation to the hydrogen-containing fuel

et al. 2021

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Promising developments in the field of engine building, associated with increasing of natural gas usage as a motor fuel for internal combustion engines (ICE), are presented. Technology of hydrogen-containing fuel composition forming created. Advantages of motor transport based on ICE with GHA: lower amount of toxic (reduction of CO release) of about 7 times; retention of existing infrastructure of fuel supply with decrease of fuel consumption of 12-17%; safety; reasonable combination of advantages of hydrocarbon and hydrogen power engineer. The perspectives of modified engines for the various interested organizations and ministries operating gasoline and diesel vehicles are discussed.

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Reduction of nitrogen oxides in diesel exhaust: Prospects for use of synthesis gas

Cited by 13 publications

References 21 publications

Mechanistic Study of Methanol Decomposition and Oxidation on Pt(111)

Mechanistic Study of Methanol Decomposition and Oxidation on Pt(111)

Synthesis gas generation on-board a vehicle: Development and results of testing

Prospects of engine building transformation to the hydrogen-containing fuel

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