水泥產業:廢棄物的水泥原料化，削減成本和碳

水泥產業，佔人為二氧化碳排放量的6％。為了削減二氧化碳排放量的技術選擇中，尤以工業廢棄物(粉煤灰、高爐礦渣等)的水泥原料化，為終端用戶帶來成本效益。其結果是，粉煤灰系水泥市場，從目前230億美元，預計到2018年擴大到470億美元規模。

本報告以水泥產業上廢棄物的水泥原料為焦點，為您概述為以下內容。

摘要整理

法規形勢

• 企業的永續性目標和碳價格，促進低碳水泥的轉變。廢棄物的水泥原料化，是最具高成本效益的的方法

分析

• 粉煤灰系水泥市場，預計2018年擴大到470億美元規模。轉換為天然氣、OPC替代品，為了維持絕對排放量是必要

尾註

The cement industry is responsible for 6% of anthropogenic carbon emissions. Among the technology options to reduce the carbon footprint, incorporation of industrial waste materials like fly ash and blast-furnace slag provide a cost benefit to the end user, even in absence of a price on carbon. As a result, fly-ash-based cement will grow from a $23 billion market today to $47 billion market by 2018. The higher growth rates for such low-carbon blended cement means an overall rise in carbon emissions, despite a decrease in carbon intensity. However, even moderate penetration of natural gas fuel and concentrated solar thermal energy, as well as higher rates of ordinary portland cement (OPC) substitution, can keep the carbon emissions from rising, despite a 34% rise in cement production over five years. Innovative technologies from companies like Ash Improvement Technology and Ceratech would be needed to increase OPC substitution and reduce capital expenditure via co-generation of treated fly ash in coal power plant boilers.

Table of Contents

LANDSCAPE

Corporate sustainability goals and carbon pricing are driving the transition to low-carbon cement. Incorporation of industrial waste is the most cost-effective means to achieve this.

ANALYSIS

Fly-ash-based cement will rise to a $47 billion market in 2018, but a switch to natural gas and higher OPC substitution may be needed to keep the absolute emissions under check.

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