A State‐of‐the‐art Review on a Thermochemical Conversion of Carbonaceous Materials: Production of Synthesis gas by Co-gasification ProcessPart I

Objective: Energy is one of the most significant inputs for development and economic growth. Jordan faces big internal and regional challenges concerns. One of these challenges is the growing Electricity demand, which accompanied by a shortage of available natural resources. Locally, Jordan is generating very limited Electrical energy that contributes only 2.4% of total energy consumption. Therefore, providing reliable and affordable Electricity in Jordan is considered one of the National Energy Strategy. The off-grid energy generating technologies can provide a more reliable supply and has a great potential to supply power to remote and rural areas. It is more environmentally friendly, cost-efficient, and operates independently without relying on multiple public utilities. The purpose of this research is to study gasification technology as one of a renewable energy source that can provide a more reliable supply and has a great potential to supply power to remote and rural areas. The gasification of the carbonaceous material is a method to produce syngas. Such technology is a process used to converts carbonaceous materials to synthetic gas to use as energy. In the gasification process, the most common materials used are Biomass. This technology has many challenges, such as low energy density, low heating value, higher tar content, and unstable supply. To overcome these disadvantages, Biomass and coal have been employed in a single process called the co-gasification. Although this method improved the process of co-gasification various factors influenced such a process. These factors include flow geometry, where the gasifier is classified for several types: entrained flow gasifier, moving bed gasifier, and fluidized bed gasifier. Other factors are gasification agent, operation conditions (temperature, pressure), heating rate, feedstock composition, fuel blending ratio, and particle size, where it is influenced by the percentage of the gases and ratio between produced (CO, CO2, CH4, H2). Methods: Previous works and research. of the gases and ratio between produced (CO, CO2, CH4, H2). Results: Compared the production of synthesis gas by co-gasification process. of the gases and ratio between produced (CO, CO2, CH4, H2). Conclusion: This paper presented the co-gasification process from the literature. Then, the comparison was made between the co-gasification process and normal gasification to determine the main factors that impact these processes, which will attend to future improving gasification. The gasification agents is one of factors that influence the gasification process, which depends on the gasifier design and operation. The other factor that can affect the co-gasification is temperature.