Effect of Water Vapour on Explosions of Carbon Monoxide

Abstract Drops of molten cast iron were placed on moulding sand substrates. The composition of the forming gaseous atmosphere was examined. It was found that as a result of the cast iron contact with water vapour released from the sand, a significant amount of hydrogen was evolved. In all the examined moulding sands, including sands without carbon, a large amount of CO was formed. The source of carbon monoxide was carbon present in cast iron. In the case of bentonite moulding sand with seacoal and sand bonded with furan resin, in the composition of the gases, the trace amounts of hydrocarbons, i.e. benzene, toluene, styrene and naphthalene (BTX), appeared. As the formed studies indicate much higher content of BTX at lower temperature it was concluded that the hydrocarbons are unstable in contact with molten iron.

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Effect of water vapour on the porous structure of activated carbon produced from lignite

Fuel ◽

10.1016/0016-2361(93)90653-j ◽

1993 ◽

Vol 72 (5) ◽

pp. 712

Author(s):

N. Petrov ◽

K. Gergova ◽

S. Eser

Keyword(s):

Activated Carbon ◽

Porous Structure ◽

Water Vapour ◽

Effect Of Water

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CCXXI.—The relative influences of water vapour and hydrogen upon the explosion of carbon monoxide–air mixtures at high pressures

Journal of the Chemical Society Transactions ◽

10.1039/ct9232302008 ◽

1923 ◽

Vol 123 (0) ◽

pp. 2008-2021 ◽

Cited By ~ 2

Author(s):

William A. Bone ◽

Dudley M. Newitt ◽

Donald T. A. Townend

Keyword(s):

Carbon Monoxide ◽

Water Vapour ◽

High Pressures

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Chemical reactions during sintering of Fe-Cr-Mn-Si-Ni-Mo-C-steels with special reference to processing in semi-closed containers

Science of Sintering ◽

10.2298/sos1501061c ◽

2015 ◽

Vol 47 (1) ◽

pp. 61-69 ◽

Cited By ~ 5

Author(s):

A. Cias

Keyword(s):

Mechanical Properties ◽

Carbon Monoxide ◽

Special Reference ◽

Water Vapour ◽

Chemical Reactions ◽

Thermodynamic Data ◽

Alloying Elements ◽

Bearing Steels ◽

Kinetics Of

Sintering of Cr, Mn and Si bearing steels has recently attracted both experimental and theoretical attention and processing in semiclosed containers has been reproposed. This paper brings together relevant thermodynamic data and considers the kinetics of some relevant chemical reactions. These involve iron and carbon, water vapour, carbon monoxide and dioxide, hydrogen and nitrogen of the sintering atmospheres and the alloying elements Cr, Mn, Mo and Si. The paper concludes by presenting mechanical properties data for three steels sintered in local microatmosphere with nitrogen, hydrogen, nitrogen-5% hydrogen and air as the furnace gas.

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Strahlenchemie von Alkoholen XVII

Zeitschrift für Naturforschung B ◽

10.1515/znb-1972-0108 ◽

1972 ◽

Vol 27 (1) ◽

pp. 41-46 ◽

Cited By ~ 6

Author(s):

C. v. Sonntag

Keyword(s):

Carbon Monoxide ◽

Molecular Hydrogen ◽

Reaction Scheme ◽

Quantum Yields ◽

Effect Of Water ◽

Formed Hydrogen

In the 185 nm photolysis of liquid O2-free isopropanol the following products (quantum yields) are formed: hydrogen (0.75), acetone (0.72), pinacol (0.036), methane (0.046), acetaldehyde (0.04), propane (0.02β), ane (0.0023) and carbon monoxide (0.0015). A detailed reaction scheme is proposed. The major primary processes are the formation of H-atoms by homolytic scission of the O —H-bond (61 — 69%), elimination of molecular hydrogen (21%) and molecular methane (5%). Φ(Η2) is strongly decreased by adding water which does not absorb an appreciable portion of the 185 nm light in the mixtures down to 1 mole/l isopropanol (Φ(Η2) =0.21). In contrast to the strong effect of water there is no effect on Φ(Η2) by diluting isopropanol with n-hexane. From experiments with isopropanol-OD and 2-deutero-isopropanol it is tentatively concluded that H-atoms stemming from the O—H-group of the alcohol are to about 65% the precursors of the hydrogen in these mixtures.

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