在温和条件下利用混凝土废料捕获硫和二氧化碳,通过将高硫石油焦与森林废料共处理,实现高硫石油焦的能源和燃料价值化

IF 3.1 2区 化学 Q2 CHEMISTRY, ANALYTICAL
D. Vamvuka, K. Zacheila
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引用次数: 0

摘要

目前的工作对高硫石油焦(PEC)及其与森林废弃物(FOP)的混合物的热解、燃烧和气化进行了全面评估。研究还探讨了废混凝土馏分捕集二氧化硫和二氧化碳排放的潜力。实验在固定床系统和热重质谱仪中进行。研究了固体材料的热行为、反应性、转化率、协同作用、结构和化学特征、产品定量分析和灰烬的热值、化学、矿物学和熔融性分析与温度、混合比和吸附剂/燃料比的函数关系。在 Ca/S = 2 的比例下添加吸附剂可使燃烧过程中的脱硫率达到 76-81%。采石场灰尘吸附剂可捕获高达 95.4% 的 700 °C 以下排放的 CO2。在 1000 °C 时,H2 含量为 64.8-72.9 % mol,合成气产量为 1.1-1.8 m3/kg。与 FOP 混合后,PEC 的气化性能得到改善。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Valorization of a high-sulfur petroleum coke for energy and fuels through its co-processing with a forest waste, using concrete wastes for sulphur and carbon dioxide capture under mild conditions

Valorization of a high-sulfur petroleum coke for energy and fuels through its co-processing with a forest waste, using concrete wastes for sulphur and carbon dioxide capture under mild conditions

Current work provided a comprehensive assessment on the pyrolysis, combustion and gasification of a high-sulfur pet coke (PEC) and its blends with a forest waste (FOP). The potential of waste concrete fractions to capture SO2 and CO2 emissions was explored. The experiments were conducted in a fixed bed system and a thermogravimetric-mass spectrometric unit. Thermal behavior, reactivity, conversion, synergy, structural and chemical characteristics of solid materials, quantitative analysis of products and heating value, chemical, mineralogical and fusibility analysis of ashes were studied as a function of temperature, blending ratio and sorbent/fuel ratio. Addition of sorbent at a ratio Ca/S = 2 resulted in a desulfurization extent of 76–81 % during combustion. Quarry dust sorbent captured up to 95.4 % of CO2 emitted below 700 °C. At 1000 °C H2 content was 64.8–72.9 % mol and syngas yield 1.1–1.8 m3/kg. The gasification performance of PEC was improved upon blending with FOP.

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来源期刊
Thermochimica Acta
Thermochimica Acta 化学-分析化学
CiteScore
6.50
自引率
8.60%
发文量
210
审稿时长
40 days
期刊介绍: Thermochimica Acta publishes original research contributions covering all aspects of thermoanalytical and calorimetric methods and their application to experimental chemistry, physics, biology and engineering. The journal aims to span the whole range from fundamental research to practical application. The journal focuses on the research that advances physical and analytical science of thermal phenomena. Therefore, the manuscripts are expected to provide important insights into the thermal phenomena studied or to propose significant improvements of analytical or computational techniques employed in thermal studies. Manuscripts that report the results of routine thermal measurements are not suitable for publication in Thermochimica Acta. The journal particularly welcomes papers from newly emerging areas as well as from the traditional strength areas: - New and improved instrumentation and methods - Thermal properties and behavior of materials - Kinetics of thermally stimulated processes
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