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The aim of this study is to show how fractal analysis can be effectively used to characterize the texture of porous solids. The materials under study were series of coals oxidized in air at various temperatures for different time intervals. Data from mercury porosimetry determinations of samples...
C 4 and C 5 cuts from FCC units can be useful in the preparation of oxygenates such as MTBE, ETBE, and TAME. However, these feedstocks typically contain nitriles and diolefins which poison the etherification catalyst. Albeit, in USA, strong concerns on oxygenate uses have given rise to...
This paper presents a general overview of petroleum biorefining or petroleum refining using biotechnology. An explanation is offered as to why modern biotechnology, due to important advances that have occurred in genetic engineering, the study of extremophilic microorganisms, protein engineering...
The hydrodenitrogenation efficiency of 14 types of coals and the reaction mechanism of Zalainouer coal were studied in an experimental entrained bed reactor by flash hydropyrolysis (FHP). The results showed that flash hydropyrolysis is an efficient method for denitrogenation, and that the...
The emission of ambient particulate matter that is less than 2.5 μm in aerodynamic diameter from commercial coal combustion sources may represent a greater risk of inhalation into human and animal respiratory systems than emission of larger particles. In addition, there is lower removal...
The influence of carbonisation temperature on the properties and the structure of sorbents obtained from the waste ion exchange resin were investigated. The resin carbonisation process has been carried out in the temperature ranges of 500–850 °C using the heating rate of 5 K/min and soaking...
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