Medicine raw material plant design from

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"Bulk chemicals already produced routinely from include urea to make nitrogen fertilizers, salicylic acid as a pharmaceutical ingredient, and polycarbonatebased plastics, Rayner said. Carbon dioxide also could be used more widely as a solvent, he added. For example, supercritical (the state existing at 31.0 C and 72.8 atm) offers advantages in terms of stereochemical control, product purification, and environmental issues for synthesizing fine chemicals and pharmaceuticals, Rayner noted.

Other avenues that he mentioned for using medicine raw material include oil and gas recovery, enhanced agricultural production, and ponds of genetically modified algae that can convert powerplant CO2 into biodiesel. are working on involves catalytic processes for reducing CO2 to formic acid (HCO2H). Formic acid has potential to power fuel cells for electricity generation and automobiles and as a precursor for other fuels and commodity chemicals, including polymers, he said. Hydrogen will be needed for the conversion and would have to be sourced from elsewhere, Rayner explained. "But compared with using hydrogen alone or methanol, we believe formic acid has much greater potential," he said.

Using medicine raw material directly as a chemical feedstock isn the only option, several chemists pointed out. The gas can be converted to carbon monoxide, which is considered a more versatile starting material than CO2. Carbon monoxide can be used in a host of organic syntheses, but it best known as a component of synthesis gas (a mixture of CO and H2), which is an important feedstock in the chemical industry for making hydrocarbons via FischerTropsch reactions.".