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تشنغتشو ، الصين

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average inherent moisture content in coal ore

Insights into moisture content in coals of different ranks by

In this study, following the characterization of pore properties by MIP, N 2 GA and NMR experiments, the moisture content characteristics of coal reservoirs are illustrated by NMR experiments, with the influence on moisture occurrence in coal reservoirs discussed in depth.When the moisture content of the coal is increased gradually, the methane adsorption amount of coal decreases under the same pressure, which indicates that the existence of moisture has an inhibitory effect on the methane adsorption capacity of hard coal with different degrees of metamorphism.Experimental study on the effect of inherent moisture on hard coal

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Experimental study on the effect of inherent moisture on

moisture (inherent moisture). Coals with different degrees of metamorphism have different inherent moisture ranges; generally, the moisture range of lignite is 10–28%, the moisture range of long-flame coal is 3–12%, whereas the moisture in anthracite is lower (Tang et al. 2015; Wang et al. 2014a; Yu and Cheng 2012). The Reasons for the changing trend of inherent moisture are summarized below: (1) adsorption character of pore surface on moisture, the higher internal surface area is the high moisture absorbed. (2) The more Polarity oxygen-containing groups in coal, the larger inherent moisture content.Effects of coal rank on physicochemical properties of coal and

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Experimental study of the moisture content influence on CH

The experimental results show that the average original moisture content and average saturated moisture content of raw coal samples are 1.3 and 2.4%, respectively. On this basis, the gas adsorption experiments on samples with different moisture contents under different gas pressures were carried out.The effect of dynamic loss of moisture content, both on moisture and gas sorption-induced coal swelling/shrinkage strains, during the coalbed methane (CBM) production, is crucial. This study investigates the interactions among coal matrix, absorbed gas, and moisture content, based on the coal swelling/shrinkage strains and gas The influence of moisture content on coal deformation and coal

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Impact of inherent moisture on the methane adsorption characteristics

When the moisture content of the coal is constant, the moisture correction term decreases continuously with increasing volatile matter content, suggesting that the influence of the inherent moisture on the methane adsorption capacity depends on the degree of coal metamorphism.The experimental results show that the average original moisture content and average saturated moisture content of raw coal samples are 1.3 and 2.4%, respectively. On this basis, the...(PDF) Experimental study of the moisture content influence

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Impact of inherent moisture on the methane adsorption characteristics

The equilibrium moisture content of coals can be obtained at a temperature of 30 °C and a relative humidity (RH) of 96% (ASTM, 1975). And it is known as the maximum inherent moisture, which reflects the water-holding capacity of coal (Liu et al., 2015). The inherent moisture content of coal varies with different relative humidity (RHThe moisture content of low-rank coal is mainly controlled by elemental oxygen and specific surface area, whereas for medium- and high-rank coals, this is controlled mainly by minerals. Our...(PDF) Insights into moisture content in coals of

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Insights into moisture content in coals of different ranks by

In this study, following the characterization of pore properties by MIP, N 2 GA and NMR experiments, the moisture content characteristics of coal reservoirs are illustrated by NMR experiments, with the influence on moisture occurrence in coal reservoirs discussed in depth.When the moisture content of the coal is increased gradually, the methane adsorption amount of coal decreases under the same pressure, which indicates that the existence of moisture has an inhibitory effect on the methane adsorption capacity of hard coal with different degrees of metamorphism.Experimental study on the effect of inherent moisture on hard coal

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Experimental study on the effect of inherent moisture on

moisture (inherent moisture). Coals with different degrees of metamorphism have different inherent moisture ranges; generally, the moisture range of lignite is 10–28%, the moisture range of long-flame coal is 3–12%, whereas the moisture in anthracite is lower (Tang et al. 2015; Wang et al. 2014a; Yu and Cheng 2012). The Reasons for the changing trend of inherent moisture are summarized below: (1) adsorption character of pore surface on moisture, the higher internal surface area is the high moisture absorbed. (2) The more Polarity oxygen-containing groups in coal, the larger inherent moisture content.Effects of coal rank on physicochemical properties of coal and

احصل على السعر

Experimental study of the moisture content influence on CH

The experimental results show that the average original moisture content and average saturated moisture content of raw coal samples are 1.3 and 2.4%, respectively. On this basis, the gas adsorption experiments on samples with different moisture contents under different gas pressures were carried out.The effect of dynamic loss of moisture content, both on moisture and gas sorption-induced coal swelling/shrinkage strains, during the coalbed methane (CBM) production, is crucial. This study investigates the interactions among coal matrix, absorbed gas, and moisture content, based on the coal swelling/shrinkage strains and gas The influence of moisture content on coal deformation and coal

احصل على السعر

Impact of inherent moisture on the methane adsorption characteristics

When the moisture content of the coal is constant, the moisture correction term decreases continuously with increasing volatile matter content, suggesting that the influence of the inherent moisture on the methane adsorption capacity depends on the degree of coal metamorphism.The experimental results show that the average original moisture content and average saturated moisture content of raw coal samples are 1.3 and 2.4%, respectively. On this basis, the...(PDF) Experimental study of the moisture content influence

احصل على السعر

Impact of inherent moisture on the methane adsorption characteristics

The equilibrium moisture content of coals can be obtained at a temperature of 30 °C and a relative humidity (RH) of 96% (ASTM, 1975). And it is known as the maximum inherent moisture, which reflects the water-holding capacity of coal (Liu et al., 2015). The inherent moisture content of coal varies with different relative humidity (RHThe moisture content of low-rank coal is mainly controlled by elemental oxygen and specific surface area, whereas for medium- and high-rank coals, this is controlled mainly by minerals. Our...(PDF) Insights into moisture content in coals of

احصل على السعر

Insights into moisture content in coals of different ranks by

In this study, following the characterization of pore properties by MIP, N 2 GA and NMR experiments, the moisture content characteristics of coal reservoirs are illustrated by NMR experiments, with the influence on moisture occurrence in coal reservoirs discussed in depth.When the moisture content of the coal is increased gradually, the methane adsorption amount of coal decreases under the same pressure, which indicates that the existence of moisture has an inhibitory effect on the methane adsorption capacity of hard coal with different degrees of metamorphism.Experimental study on the effect of inherent moisture on hard coal

احصل على السعر

Experimental study on the effect of inherent moisture on

moisture (inherent moisture). Coals with different degrees of metamorphism have different inherent moisture ranges; generally, the moisture range of lignite is 10–28%, the moisture range of long-flame coal is 3–12%, whereas the moisture in anthracite is lower (Tang et al. 2015; Wang et al. 2014a; Yu and Cheng 2012). The Reasons for the changing trend of inherent moisture are summarized below: (1) adsorption character of pore surface on moisture, the higher internal surface area is the high moisture absorbed. (2) The more Polarity oxygen-containing groups in coal, the larger inherent moisture content.Effects of coal rank on physicochemical properties of coal and

احصل على السعر

Experimental study of the moisture content influence on CH

The experimental results show that the average original moisture content and average saturated moisture content of raw coal samples are 1.3 and 2.4%, respectively. On this basis, the gas adsorption experiments on samples with different moisture contents under different gas pressures were carried out.The effect of dynamic loss of moisture content, both on moisture and gas sorption-induced coal swelling/shrinkage strains, during the coalbed methane (CBM) production, is crucial. This study investigates the interactions among coal matrix, absorbed gas, and moisture content, based on the coal swelling/shrinkage strains and gas The influence of moisture content on coal deformation and coal

احصل على السعر

Impact of inherent moisture on the methane adsorption characteristics

When the moisture content of the coal is constant, the moisture correction term decreases continuously with increasing volatile matter content, suggesting that the influence of the inherent moisture on the methane adsorption capacity depends on the degree of coal metamorphism.The experimental results show that the average original moisture content and average saturated moisture content of raw coal samples are 1.3 and 2.4%, respectively. On this basis, the...(PDF) Experimental study of the moisture content influence

احصل على السعر

Impact of inherent moisture on the methane adsorption characteristics

The equilibrium moisture content of coals can be obtained at a temperature of 30 °C and a relative humidity (RH) of 96% (ASTM, 1975). And it is known as the maximum inherent moisture, which reflects the water-holding capacity of coal (Liu et al., 2015). The inherent moisture content of coal varies with different relative humidity (RHThe moisture content of low-rank coal is mainly controlled by elemental oxygen and specific surface area, whereas for medium- and high-rank coals, this is controlled mainly by minerals. Our...(PDF) Insights into moisture content in coals of

احصل على السعر

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