This project has proved to be a successful one in that the amount of biogas maybe converted into methane. With the idea of having R-1’ implemented, the huge amount of unreacted methane and carbon dioxide has been reduced. Instead, they are being recycled and this brings a huge improvement in the conversions obtained. From the results obtained, the recycling effect have caused huge amount of hydrogen to be obtained. About 33.669 moles of hydrogen have been produced at the end of the whole process. The amount of hydrogen and carbon monoxide consumed will determined the amount of methane conversion. The greater the amount consumed, the more amount of liquid yield maybe obtained.
As the small-scale laboratory setup is only designed for operations at a maximum of 14 atm, therefore, the operation could not be operated beyond that as compared to industrial processes that operated at the same temperature but higher pressure. However, factors like the efficiency of the catalysts, the implementation of R-1’ has proved that some amount of liquid yield can still be collected. The Ni catalysts and Cu/ZnO catalysts proved to be working perfectly as good amount of syngas is consumed in both process to produce methanol and that the amount of unreacted methane and carbon dioxide has also greatly reduced. Ni catalysts also proved to exhibit longer life and stability in the process. The use of glass beads has also improved the sintering effect, which used to cause carbon to bind together to form large blocks of carbon that sticks to the inner walls of the reactors and caused blockage.
This project proves to be a success as not only good results were achieved, improvements had also been successfully implemented, ensuring a smoother operation.