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- W2378085339 abstract "Inner Mongolia lignite has some shortcomings such as high moisture,easy weathering disintegration and oxidation,spontaneous combustion,low utilization rate.In order to upgrade the quality of liginite,do experimental study with thermal dehydration method.Investigate the influence of upgrading temperature,residence time,particle size of raw coal on upgrading effect.The results show that first two factors have obvious effect,while the last one is opposite.When the residence time is 20 minutes and the upgrading temperature is 300 ℃,the upgrading effect shows best.The content of hydrogen,carbon,nitrogen has been improved respectively by 153%,72.46%,26.09%,while the content of moisture and oxygen has been reduced respectively by 79.75% and 62.47%.The gross calorific value and low calorific value has been increased respectively by 108.50% and 161.86%.Upgrading process significantly reduces the moisture content and oxygen content of coal,the carbon content and calorific value also has been greatly improved,which is the basis for thermal upgrading of lignite." @default.
- W2378085339 created "2016-06-24" @default.
- W2378085339 creator A5067107304 @default.
- W2378085339 date "2012-01-01" @default.
- W2378085339 modified "2023-09-23" @default.
- W2378085339 title "Study on primary thermal upgrading of Inner Mongolia Huolinhe lignite" @default.
- W2378085339 hasPublicationYear "2012" @default.
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