How are synthesis gas ammonia and methanol connected to fertilizers plastics and fibres?

Synthesis gas serves as a foundational building block in the chemical industry, derived from fossil fuels like natural gas, coal, or petroleum to produce two primary intermediates: ammonia and methanol.123

Ammonia and Fertilizers

Ammonia is produced by combining nitrogen with hydrogen derived from synthesis gas. Its most significant application is in the production of fertilizers, such as ammonium nitrate and urea. Urea is created by reacting ammonia with carbon dioxide—a byproduct of synthesis gas preparation—and is also utilized in the production of resins and plastics when reacted with formaldehyde.143

Methanol, Plastics, and Fibres

Methanol is synthesized from a mixture of carbon monoxide and hydrogen. A major portion of methanol production is converted into formaldehyde, which is essential for manufacturing various plastics and resins. Furthermore, methanol is a direct precursor in the production of polyester fibres, plastics, and silicone rubber. While methanol itself is a solvent, its derivatives are critical components in the broader polymer industry, which encompasses the manufacturing of synthetic fibres, rubbers, and plastics.12536