*2.2.5 Gasification*

Gasification is the process of partially oxidizing an organic feedstock to generate syngas (a mixture of hydrogen, volatile short chain organic compounds, and carbon monoxide) [33]. The fuel is typically biomass or waste, and the chemical proportions in the syngas can be controlled by changing the process conditions. The conversion of CO2 from outside of a biomass into fuels such as the those in their synthetic forms are used in this technique for meet high carbon demands from renewable sources. The huge carbonate deposits on the planet and carbonates arising from the sea, containing about 360 parts per million (ppm) of CO2 by volume, might all be used as renewable carbon resources [21]. As demonstrated in **Figure 3**, it can be produced using biomass gasification techniques and then converted into a variety of chemicals and fuels. For continuous water splitting, these can be subjected to electrochemical, biochemical, thermochemical, microbial, photolytic, and biophotolytic operations. Biomass represents about 10.5% of total energy utilization in most developed countries, according to estimates provided by the International Energy Agency (IEA) from a study of 133 countries in 2000.
