Effect of Different Synthesis Condition on the Covalent Organic Polymer-4 Properties as Adsorbent

CO2 content in some natural gas reserves is in high amount hence reduces the gas heating value. With the current high cost of separation technology, there is a need to separate the high CO2 content from the natural gas by a cheaper means. Adsorption technology is known for its cost efficiency for separation when compared to another separation processes. In this paper, an effort to synthesize a new adsorbent COP-4 which has good CO2 adsorption properties in high pressure is conducted. Review of recent literatures suggests that only a little research has been done in investigating the potential of adsorption to be used in the natural gas CO2 separation. The adsorbent is investigated of its optimum production temperature in order to optimize the production costs by altering the reaction temperature and time. The adsorbent then are characterized by using VPFESEM, TEM, Surface area and Porosity Analyzer in order to investigate its preliminary properties. The COP-4 samples are made by using microwave reactor method, which is different than the conventional solvothermal method. The solvothermal method is the conventional method in the production of organic material using solvent that took relatively long reaction time. The microwave reactor method, potential reduction of the reaction time can be done to when compared to the original method. Characterization result indicates that the surface area and pore size of the COP-4 adsorbent decreases when produced in an increasing temperature, while still keeping its high pressure adsorption potential.