Badania sorpcji wybranych węglowodorów na węglu kamiennym : rozprawa doktorska /

Recenzenci pracy: Jacek Machnikowski, Janina Milewska-Duda.Praca doktorska. Akademia Górniczo-Hutnicza im. Stanisława Staszica (Kraków), 2009.Bibliogr. k. 154-171.Wybrane pojęcia adsorpcji gazów, par na ciałach stałych, absorpcja, izostery adsorpcji, równania izoterm, termodynamika, podstawowe funkcje termodynamiczne, energetyka, ciepło, rodzaje, metody wyznaczania ciepła, węgiel kamienny jako sorbent naturalny, budowa, właściwości, geneza węgla kamiennego, wybrane modele budowy, chemiczna struktura, fizyczna, sorpcyjne właściwości, sorpcja par węglowodorów na sorbentach węglowych, węglowodorów na węglu kamiennym, adsorpcja węglowodorów na węglu aktywnym, badania eksperymentalne, metodyka badań doświadczalnych, wyznaczanie izoterm sorpcji, badania porowatości, powierzchniowych grup funkcyjnych, kalorymetryczne, charakterystyka sorbatów, sorbentów, węgla kamiennego, aktywnego, wyniki badań sorpcyjnych, kalorymetrycznych, izotermy sorpcji w układzie węgiel kamienny - węglowodory, aktywn

Energetic effects of adsorption of C6-C8 hydrocarbons on hard coal samples of different metamorphism

The analysis of sorption equilibrium of aliphatic saturated and unsaturated hydrocarbons on low and medium rank coals were performed. Isosteric sorption enthalpy correlation with the degree of fill of sorption capacity was presented for the low rank coal. There was found a crucial role of primary pore structure in the coal grains in the process of sorption, especially in case of temperature anomalies occurrence. Hexane differently than other hydrocarbons of longer chains, represent the property of micropore penetration. Due to literature the presence of double bound in other molecules causes difficulties with penetration into porous structure of coal

Sequestration of carbon dioxide – influence of coal surface chemistry

The physical gas adsorption is a widely used method for the characterisation of the solids porosity. The water steam, primarilydue to its physicochemical properties and ease of use in the experiment has great potential as a sorbate. When applied to coal, water steam allows to determine the quantity of primary adsorption centers as measurement of interaction of molecules adsorbed to the surface of the adsorbent. In order to determine the adsorption capacity and the chemical nature of the coal surface, adsorption / desorption of water vapour to the selected coals was examined at 303K, using a volumetric method. The presence of water in the coal may affect on the sorption properties of other molecules. The analysis of the results show that the coals of low rank and a high content of oxygen functional groups, which are the active sites, showed a greater affinity to absorbing water molecules. Adsorption isotherms were compiled through approximating the Langmuir and BET linear equation to measurement data. Based on the adsorption equation, the amount of adsorption centers have been specified, which can potentially be involved in the adsorption of CO2 during the injection of gas into the coal seams

Sequestration of carbon dioxide – influence of coal surface chemistry

The physical gas adsorption is a widely used method for the characterisation of the solids porosity. The water steam, primarilydue to its physicochemical properties and ease of use in the experiment has great potential as a sorbate. When applied to coal, water steam allows to determine the quantity of primary adsorption centers as measurement of interaction of molecules adsorbed to the surface of the adsorbent. In order to determine the adsorption capacity and the chemical nature of the coal surface, adsorption / desorption of water vapour to the selected coals was examined at 303K, using a volumetric method. The presence of water in the coal may affect on the sorption properties of other molecules. The analysis of the results show that the coals of low rank and a high content of oxygen functional groups, which are the active sites, showed a greater affinity to absorbing water molecules. Adsorption isotherms were compiled through approximating the Langmuir and BET linear equation to measurement data. Based on the adsorption equation, the amount of adsorption centers have been specified, which can potentially be involved in the adsorption of CO2 during the injection of gas into the coal seams