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- W2365744028 abstract "The low maturation coal in Shenshan Coal Mine,as the immature sample of the Carboniferous Benxi Formation,Ordos basin,is pyrolyzed under three different conditions in semi-open systems to identify the major source rocks of the natural gas in the Upper Ordovician weathered crust.We heated the sample rapidly up to a certain temperature point,and then cooled it immediately or cooled it after keeping the temperature for 120 minutes to temperatures below 100 ℃,separately.Then the sample was heated to higher temperatures and the procedure was repeated.The results show that the sample does not react entirely at each temperature under the first condition.Since reactants in the sample can only react partially during each heating process,the methane collected at higher temperatures is the mixture of the methane generated at lower and higher temperatures.In this case,the mechanism of the methane generation is like the hydrocarbon generation in closed systems.Under the second condition,reactants in the sample react entirely,so the methane collected at higher temperatures is generated only at the higher temperatures.The mechanism of the methane generation is like that in open systems.Under the two different isothermal conditions,the amounts of ethane,propane,butane,pentane are much less than that of methane,so their reactants have reacted entirely at each temperature.Thus,the ethane,propane,butane and pentane collected at higher temperatures are only generated at higher temperatures.The mechanism of their generation from the sample is like that in open systems." @default.
- W2365744028 created "2016-06-24" @default.
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- W2365744028 date "2007-01-01" @default.
- W2365744028 modified "2023-09-25" @default.
- W2365744028 title "EFFECTS OF CONSTANT TEMPERATURE TIME ON THE PYROLYSATE OF THE LOW MATURATION COAL SAMPLED FROM SHENSHAN COAL MINE,ORDOS BASIN" @default.
- W2365744028 hasPublicationYear "2007" @default.
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