The ‘Squeaky Clean Domestic Chemicals Co.’ has another process onsite that is has been running for many years. This process produces 20 kg per hour of a coke residue (pure carbon) as a byproduct which is separated by a cyclone and sent to landfill. This process runs continuously 24 hours a day, 7 days a week, 365 days a year.The company uses natural gas to run a system of boilers to provide hot water at 90°C for many of its processes. A recent graduate joins the company and suggests that they might be wasting a valuable resource by simply disposing of the coke. Approximately how much could the company save by using combustion of the carbon to heat its process water given that the standard enthalpy of combustion of carbon is - 397 kJmol-1 and that the cost of natural gas (methane) is £0.12 kWh?
The ‘Squeaky Clean Domestic Chemicals Co.’ has another process onsite that is has been running for many years. This process produces 20 kg per hour of a coke residue (pure carbon) as a byproduct which is separated by a cyclone and sent to landfill. This process runs continuously 24 hours a day, 7 days a week, 365 days a year.
The company uses natural gas to run a system of boilers to provide hot water at 90°C for many of its processes. A recent graduate joins the company and suggests that they might be wasting a valuable resource by simply disposing of the coke. Approximately how much could the company save by using combustion of the carbon to heat its process water given that the standard enthalpy of combustion of carbon is - 397 kJmol-1 and that the cost of natural gas (methane) is £0.12 kWh?
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