Abstract
Cement has a pivotal role in the construction industry. However, cement is one of the key contributors to global CO2 emission levels. This is due to the energy-intensive nature of cement production processes. This comparative-descriptive study focuses on the potential factors to reduce the CO2 emission level in cement production and the decision-making process of adopting new environmental-friendly technology in production. Particularly, this study compares alternative technologies in cement manufacturing to reduce CO2 emission. It collects both the industry data and the data from Texas, which is the biggest contributor to CO2 emission in the US, to analyze how a shift in production technology could affect CO2 emission and eventually improve the outcomes of environment protection and energy efficiency. This paper projects a possible improvement of implementing the method of preheater-precalciner in cement production in lieu of wet and long-dry process to upgrade kilns and reduce problematic CO2 emission. This study suggests shifting from wet and dry kilns to preheater-precalciner systems to obtain the potential benefits of CO2 emission reduction in the cement industry.
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