Equilibrium data for carbon dioxide and methane adsorption on nanoporous metal organic framework Cu‐BTC powder and tablets were measured in a magnetic suspension balance in the temperature range of 308–373 K and a pressure range of 0–7 bar and fitted with Langmuir model. The tablets adsorption loading is 0.63 mol kg–1 for methane and 3.1 mol kg–1 for carbon dioxide at 1 bar and 308 K, while these values are 0.77 and 3.9 mol kg–1 for powder in the same conditions. Isosteric heats of adsorption were 22.8 and 15.0 kJ mol–1 for carbon dioxide and methane, respectively, on both adsorbents, which indicates a strong adsorption of carbon dioxide. Also, single and binary breakthrough curves were measured in the same temperature range and atmospheric pressure by using Cu‐BTC tablets as adsorbent. A complete model was used in the simulation of breakthrough curves and good agreement was observed with experimental data.

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Carbon dioxide is one of the flue gases emitted from fossil fuels that are harmful to the environment and humans. Producing valuable methanol from syngas is a proper method to recover CO 2 without requiring pretreatment. In this study, a new method is developed to produce methanol from flue gases emitted from fossil fuels. This process is simulated using Aspen Plus 8.0 software, and the results are compared with the data obtained by previous researches. Results confirmed the accuracy of the calculations and efficiency of the newly designed process. The purity of the produced methanol and the operational conditions are improved in this simulation.

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This research deals with the study of the irreversibility of three-dimensional mixed convection flow in an inclined duct with step. To reach this goal, an analysis of entropy generation is carried out according to the second law of thermodynamics. The effects of buoyancy force on the flow irreversibility are analyzed with all details. The results show that the values of entropy generation number and Bejan number are intensively dependent on the Grashof number and duct inclination angle, so that the effects of Grashof number on the mentioned parameters are much higher for the vertical ducts.

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