A Cu/Cr-BDC@γ-Al2O3 granular bimetal-organic framework was synthesized for the first time, and its performance in adsorption of thiophene from isooctane was investigated. XRD, BET, FT-IR, SEM, and EDX analysis confirmed the successful synthesis of the adsorbent. The adsorption performances of Cr-BDC, Cu-BDC, and Cu/Cr-BDC were compared, and the bimetallic adsorbent had a better performance due to the synergetic effects of the simultaneous presence of metals. Furthermore, the granular adsorbent had a better performance due to the prevention of the particle’s agglomeration. The highest adsorption percentage and adsorbent capacity were 84% and 55 mg/g, respectively. Experimental data fitted with the pseudo-second-order kinetic model as well as the Langmuir and D–R isotherm models indicated that the adsorption was monolayer and chemisorption was the dominating mechanism. The adsorbents were regenerative up to 5 times. Adsorption was due to the weak bonding of lone pair electrons on sulfur atoms of thiophene and empty orbitals of metals.

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Nowadays, with the growing importance of environmental issues, especially greenhouse gases and global warming, carbon management became more crucial. Several organizations and agreements are being legislated and established in this regard. One of the most important steps in carbon management is the MRV. MRV consists of three sections: measurement, reporting, and verification, which are essential for validating emission reduction data. Natural gas distribution companies in Iran are one of the most significant sources of carbon emissions. So, in this project, an MRV document for carbon management activities in gas distribution sector was prepared. According to our investigations, consumers’ equipment plays a major role in methane emission and there is a significant amount of direct leakage from consumer regulators, which can be easily controlled and reduced. As a pilot and case study in the East Azerbaijan Province Gas Distribution Company, after monitoring common equipment and applying mitigation actions, it was observed that almost 50,000 kg/day of CO2 equivalent methane leakage could be prevented in a sample urban area of Tabriz, Iran. The IPMVP protocol was used to validate the data at all stages of the MRV document preparation. This protocol is comprehensive and sufficiently compatible with the project. It should be noted that up to now, no MRV documents have been prepared in Iran. This was the beginning of the comprehensive implementation of this MRV at the National Iranian Gas Company level.