Syngas, or synthesis gas, is a mixture consisting principally of hydrogen (H₂) and carbon monoxide (CO). It may also contain methane (CH4) and other fuel gases, along with some CO2 and water vapor. Syngas is produced from carbon-containing materials such as biomass, waste products, coal, or natural gas. Syngas is a valuable building block for several industrial chemicals, polymers, ammonia and methanol, and is an important source of hydrogen gas. It serves as an intermediate in them production of renewable fuels such as substitute natural gas, renewable diesel, and sustainable aviation fuel. It is thus a crucial component in various industrial processes, particularly in the chemical industry and for energy production. Syngas and its derivatives are a vital part of building a low-carbon and circular economy.
The increasing inclination towards clean energy sources due to the negative effects of traditional fossil fuels on the environment is fostering the development of alternative fuel types in order to cater the surging energy requirements where syngas offers an innovative solution which involves integration of sustainability, flexibility and scalability owing to its production form carbon biomaterials. The product is used as a potential fuel source in the internal combustion engines of cars along with as a potential fuel type in power plants for power generation. The utilization of syngas as a fuel in internal combustion engines (ICE) is accessed as promising in nature owing to its cost competitiveness when compared with natural gas. The clean nature of syngas owing to the less presence of contaminants makes it potentially viable for use in gas turbines as the nature of gas turbines is more susceptible to impurities.
Syngas is converted to useful transportation bio-fuel where three methodologies are widely accepted like the catalytic conversion of syngas to methanol, followed by catalytic production of triptane from methanol where triptane will be used as a hydrocarbon blend in transportation fuels. Secondly, the catalytic conversion of syngas to mixed alcohols followed by catalytic conversion to produce hydrocarbon biofuels and oxygenate blend stocks and the fermentation of syngas to ethanol, followed by catalytic conversion of ethanol to produce hydrocarbon biofuel blend stocks. The wide availability of biomass and its potential as a feedstock element in the production of syngas makes it widely acceptable in fuel applications that are utilized across a diverse domain of industries.
Asia Pacific is the leading market of syngas owing to the presence of notable countries primarily China, India, Japan, India, etc. which are the prime producers and consumers of the synthesis gas across various end use industries. The use of syngas in the production of compounds like acetic acid, methanol, ammonia and as a potential fuel source exhibit the wide applicability of syngas in the region. The presence of agriculture-dominant countries in the region particularly China and India where demand for agrochemicals drive the growth of syngas which is attributed to their utilization in ammonia and methanol which are prime derivatives in the production of insecticides, fertilizers, herbicides etc. Additionally, the increasing emphasis of the region towards adoption of sustainable fuel sources which includes the utilization of biomass as a sustainable feedstock element makes the adoption of syngas more demanding across the power, transportation sector, and aviation industry owing to the use of syngas as a sustainable aviation fuel.
For instance, prominent energy producer TotalEnergies collaborated with Tree Energy Solutions (TES) for the development of a large-scale production unit in the United States for e-natural gas (e-NG), a syngas produced from renewable hydrogen and CO2. The project aimed at the production of 100,000 to 200,000 metric tons of e-NG annually which will facilitate the decarbonization of various end-use sectors in the region eventually leading the market development for syngas.