چكيده به لاتين
In recent decades, the development of energy production processes with high efficiency and reduction of pollutants, especially in the field of synthesis gas and hydrogen production, has been proposed as an essential need of industries and a step towards environmental sustainability.This research has designed and simulated a new process based on SESMR (Steam Reforming with Enhanced Absorption) technology, which by using multi-purpose reactors, including biomass gasification and simultaneous endothermic and exothermic reactions and methane dry reforming, significantly increases hydrogen production efficiency. It increases and reduces the emission of carbon dioxide.The simulation of the process was done with Aspen Plus V14 software, and in all stages of the simulation, solid state equations were used to estimate the thermodynamic properties and behavior of compounds in the process. One of the key innovations of this process is the use of biomass gasification in self-heating reactors, which minimizes the need for external energy due to the thermal coupling between endothermic and exothermic reactions.In this part of the process, the energy released from the exothermic reactions is directly used to drive the endothermic reactions of biomass gasification, which not only improves energy efficiency, but also reduces pollutant emissions and operating costs.Biomass has also been used as one of the main feeds in the gasification process and its role in improving environmental sustainability and reducing dependence on fossil resources has been investigated.Studies show that in this process, carbon dioxide absorption is possible up to 97%, which is a significant improvement compared to conventional methods in the industry, such as the technochemical process, which has zero absorption. Also, the ratio of hydrogen to carbon dioxide in this process reaches 200, while this ratio is about 4 in traditional methods.The sensitivity analysis shows that increasing the temperature from 500 to 800 °C leads to a 23% increase in the hydrogen yield and 60% in the conversion rate. Comparing the designed process with the DPIZER process also indicates the superiority of the new process in reducing energy consumption. This research with a comprehensive comparison between the new processand conventional methods, while explaining the strengths, limitations and capabilities of the process, emphasizes that the use of these technologies can create a fundamental transformation in reducing pollutants and improving the efficiency of hydrogen and synthesis gas production.
