QQuestionChemistry
QuestionChemistry
Explain what a byproduct is and give an example of one not discussed in the unit.
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Answer
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Step 1: Define a byproduct
A byproduct is a secondary or indirect result that occurs during the production of something else. It is a secondary product derived from the main process, often as an incidental or auxiliary outcome.
Step 2: Provide an example of a byproduct
An example of a byproduct in industry is the production of hydrogen gas during the process of steam reforming of natural gas to produce synthetic nitrogen fertilizers. In this process, methane reacts with steam at high temperatures in the presence of a catalyst to produce hydrogen and carbon monoxide, which are then separated and further processed. The hydrogen can be used as a fuel or feedstock in various industrial processes, while the carbon monoxide can be converted into other chemicals or used as fuel.
Final Answer
One example of a byproduct not discussed in the unit is the production of biochar during the process of pyrolysis of biomass. Pyrolysis is a thermochemical decomposition of organic materials in the absence of oxygen, which results in the production of biochar, bio-oil, and syngas. Biochar is a carbon-rich material that can be used as a soil amendment to improve soil fertility, carbon sequestration, and water retention. Bio-oil can be further refined into biofuels or chemicals, while syngas can be used as a fuel or converted into other chemicals. In this example, biochar is a byproduct of the pyrolysis process, which is primarily intended for the production of bio-oil and syngas.
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