Generation of hydrogen and light hydrocarbons for automotive exhaust gas purification: Conversion of n-hexane in a PACT (plasma and catalysis integrated technologies) reactor

Xing, Yu; Liu, Zhenxin; Couttenye, Richard A.; Willis, William S.; Suib, Steven L.; Fanson, Paul T.; Hirata, Hirohito; Ibe, Masaya

doi:10.1016/j.jcat.2007.05.021

Cited by 21 publications

(13 citation statements)

References 11 publications

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“…The values of input voltage and input current were measured by a TDS 3012B Tektronix oscilloscope using a high‐voltage (Tektronix 6015A), and a low‐voltage probe (Tektronix P3010), respectively. The voltage across a standard resistor (50 Ω) in series with the reactor was used to determine the input current, which could be calculated through the voltage value measured with the low‐voltage probe by taking the resistor into account 17. The input power value was calculated by the oscilloscope with the values of voltage and current.…”

Section: Methodsmentioning

confidence: 99%

Propene epoxidation with in‐site H₂O₂ produced by H₂/O₂ non‐equilibrium plasma

Zhao

Zhou

et al. 2007

AIChE Journal

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in Wiley InterScience (www.interscience.wiley.com).A novel in-site H 2 O 2 strategy is proposed for the liquid-phase epoxidation of propene catalyzed by titanium silicalite (TS-1). Said in-site H 2 O 2 strategy is based on the direct synthesis of H 2 O 2 from H 2 and O 2 under atmospheric pressure via nonequilibrium plasma reactions. Methanol is used to absorb H 2 O 2 from the dielectric barrier discharge (DBD) reactor. Methanol also serves as the desired solvent for the liquidphase epoxidation reactor. The efficiency of the integrated process for in-site synthesis of H 2 O 2 reached 69% selectivity, and 62% yield with a nonexplosive H 2 /O 2 mixture when the DBD reactor worked at an input power of 3.5 W (energy consumption 12.4 kWh/kg H 2 O 2 ). The liquid-phase epoxidation of propene using the in-site H 2 O 2 successfully proceeded over an 18 h time course under the conditions of 50 8C and 3.0 MPa, more than 92% H 2 O 2 conversion and more than 93% PO selectivity were obtained. The two-reactor integrated process worked smoothly during continuous operation, no performance decay was observed for both the DBD reactor and the epoxidation reactor. These facts mean that our in-site H 2 O 2 strategy for PO synthesis is promising.Nonequilibrium plasma reaction conditions: DBD reactor input power 3.5 W, AC power supply frequency 14 kHz, flow rate of feed gas 105 ml/min, O 2 content of feed gas 4.8 vol.%, room-temperature, 0.1 MPa. Epoxidation reaction conditions: catalyst 3 g, 3 MPa.

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Section: Methodsmentioning

confidence: 99%

Propene epoxidation with in‐site H₂O₂ produced by H₂/O₂ non‐equilibrium plasma

Zhao

Zhou

et al. 2007

AIChE Journal

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“…6(b). Also, selectivity of products was calculated by the following equation (Equation (2)): % Considered Product Selectivity ¼ ðrate of considered product producing Â 100Þ rate of total products producing (2) Additionally, production of C 4 as a light hydrocarbon and cracking of C 12 as a heavy hydrocarbon were analyzed in the liquid after treatment by plasma. According to Fig.…”

Section: Effect Of Working Gas Flowmentioning

confidence: 99%

“…They need high temperature and moderate pressure, a start-up stage and catalyst warm-up time, hydrogen sources, equipment expenses, and coke removal. In addition, conventional cracking may occur with the same probability at all CeC bonds; this reduces the control of product selectivity [1,2].…”

Section: Introductionmentioning

confidence: 99%

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Dielectric barrier discharge plasma torch treatment of pyrolysis fuel oil in presence of methane and ethane

Gharibi¹,

Khosravi

Khani

et al. 2015

Journal of Electrostatics

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“…Catalytic methods also require high temperatures to manage the active state for reforming. Thus, the traditional hydrocarbon cracking technologies are not efficient 3.…”

Section: Introductionmentioning

confidence: 99%

Conversion of Pyrolysis Fuel Oils by a Dielectric Barrier Discharge Reactor in the Presence of Methane and Ethane

Khani

Khosravi

Gharibi³

et al. 2015

Chem Eng & Technol

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Pyrolysis fuel oil cracking by low-temperature plasma was investigated in a dielectric barrier discharge reactor at ambient pressure. The promoting effect of methane and ethane in the formation of products was evaluated by altering the working gas from methane to ethane. In addition, the production of hydrocarbons and hydrogen was analyzed. The main parameters were working gas type, flow rate, and applied voltage. Increasing the applied voltage enhanced the production rate of valuable petrochemical compounds like gas and liquid. Alteration of the working gas flow rate led to a higher production rate of H 2 , C 2 , C 3 , and C 4 . Chemical investigations were performed by optical emission spectroscopy of plasma and the main mechanisms are described.

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Generation of hydrogen and light hydrocarbons for automotive exhaust gas purification: Conversion of n-hexane in a PACT (plasma and catalysis integrated technologies) reactor

Cited by 21 publications

References 11 publications

Propene epoxidation with in‐site H₂O₂ produced by H₂/O₂ non‐equilibrium plasma

Propene epoxidation with in‐site H₂O₂ produced by H₂/O₂ non‐equilibrium plasma

Dielectric barrier discharge plasma torch treatment of pyrolysis fuel oil in presence of methane and ethane

Conversion of Pyrolysis Fuel Oils by a Dielectric Barrier Discharge Reactor in the Presence of Methane and Ethane

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Generation of hydrogen and light hydrocarbons for automotive exhaust gas purification: Conversion of n-hexane in a PACT (plasma and catalysis integrated technologies) reactor

Cited by 21 publications

References 11 publications

Propene epoxidation with in‐site H2O2 produced by H2/O2 non‐equilibrium plasma

Propene epoxidation with in‐site H2O2 produced by H2/O2 non‐equilibrium plasma

Dielectric barrier discharge plasma torch treatment of pyrolysis fuel oil in presence of methane and ethane

Conversion of Pyrolysis Fuel Oils by a Dielectric Barrier Discharge Reactor in the Presence of Methane and Ethane

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Propene epoxidation with in‐site H₂O₂ produced by H₂/O₂ non‐equilibrium plasma

Propene epoxidation with in‐site H₂O₂ produced by H₂/O₂ non‐equilibrium plasma