Question

Determine how much cement manufacture and gas flares contribute to the emission of $\mathrm{CO}_2$. Describe why cement manufacture is a source of $\mathrm{CO}_2$ emission and what a gas flare is and why it is performed. Hint: The data from Oak Ridge National Laboratory are quite useful.

Name: Problem 14, Chapter 1: Solar Energy: An Introduction
Uploaded: 2020-09-17T12:01:48-08:00
Duration: 1 min 41 s
Channel: Reed Mckee
Description: Determine how much cement manufacture and gas flares contribute to the emission of CO2. Describe why cement manufacture is a source of CO2 emission and what a gas flare is and why it is performed. Hint: The data from Oak Ridge National Laboratory are quite useful.

   Determine how much cement manufacture and gas flares contribute to the emission of $\mathrm{CO}_2$. Describe why cement manufacture is a source of $\mathrm{CO}_2$ emission and what a gas flare is and why it is performed. Hint: The data from Oak Ridge National Laboratory are quite useful.

Solar Energy: An Introduction

Michael E. Mackay 1st Edition

Chapter 1, Problem 14

Instant Answer

Solved by Expert Reed Mckee

09/17/2020

Step 1

Cement manufacture is a major source of $\mathrm{CO}_2$ emissions because it involves the chemical process of calcination, where limestone (calcium carbonate) is heated to produce lime (calcium oxide). This process releases $\mathrm{CO}_2$ as a byproduct. Show more…

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Determine how much cement manufacture and gas flares contribute to the emission of $\mathrm{CO}_2$. Describe why cement manufacture is a source of $\mathrm{CO}_2$ emission and what a gas flare is and why it is performed. Hint: The data from Oak Ridge National Laboratory are quite useful.

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Key Concepts

Cement Manufacture

Cement manufacture is a significant source of CO2 emissions primarily due to the chemical conversion of limestone into clinker, which releases CO2 as a byproduct of calcination, and the combustion of fossil fuels required to heat the kilns. This industrial process not only generates a large percentage of global CO2 emissions but also has a substantial energy footprint, influencing the overall climate impact of construction and infrastructure development.

Gas Flares

Gas flares refer to the intentional burning of excess or waste gas produced during oil and gas extraction processes. This practice is performed to safely remove unwanted hydrocarbons, prevent the buildup of pressure in equipment, and minimize the risk of explosions. However, the combustion process in gas flares emits CO2 and other pollutants, contributing to greenhouse gas emissions even as it serves as a safety and operational measure in the industry.

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