以CFB副產石灰作為水淬爐石粉激發劑之可行性探討

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Title:	以CFB副產石灰作為水淬爐石粉激發劑之可行性探討
Authors:	楊舒予;Yang,Shu-Yu
Contributors:	土木工程學系
Keywords:	CFB 副產石灰;鹼激發;水淬爐石粉
Date:	2013-08-28
Issue Date:	2013-10-08 09:31:45 (UTC+8)
Publisher:	國立中央大學
Abstract:	循環式流體化床鍋爐(Circulating Fluidized Bed Boiler，簡稱 CFB)，以燃燒石油焦來發電，為避免燃燒高含硫量之燃料產生硫氧化物之過量排放，故混合石灰石進行脫硫，其製程所產生之工業副產物，即為CFB 副產石灰。本研究係以ASTM C821及C593之規範，測定CFB副產石灰做為激發劑之可行性。再以CFB副產石灰搭配水淬爐石粉、水泥組合成混合水泥，依CNS 15286進行符合度試驗，提供CFB 副產石灰資源化之利用。另一方面，依CFB副產石灰及其反應過程中所產生具有激發效果之物質，分別以單一成分方式對水淬爐石粉進行激發作用，以檢視各成分對於激發效果的貢獻及其對砂漿膨脹行為與混合水泥健度之影響。研究結果顯示，CFB 副產石灰具有作為激發劑之可行性，當進行摻配製成水硬性混合水泥時，其最高摻配量需小於20 %，方可滿足各規範之需求。單一成分激發部分，以石膏系材料對強度貢獻較大，但對砂漿膨脹行為之影響也較為顯著。 Circulating Fluidized Bed (CFB) Boiler is a means of energy-generating process by burning petroleum coke. In order to avoid blazed petroleum coke with high sulfur content from emitting overdosed sulfur dioxide, limestone is introduced in the boiler for desulfuration. The residue collected from the boiler is called CFB Byproduct Lime. In this study, According to specifications ASTM C821and ASTM C593? measured in CFB byproduct lime as activators of feasibility. Then, used CFB byproduct lime with granulated blast furnace slag and cement to form blended cement, according to the specification CNS 15286 for conformance testing, providing CFB byproduct lime of resource utilization basis. On the other hand, according to CFB byproduct lime produced during the reaction and its activating effect of substances having, respectively, a single component manner granulated blast furnace slag for stimulating effect, to view the effects of each component's contribution to the excitation and its effect on mortar expansion behavior and the impact of blended cements health degrees. The results show that, CFB byproduct lime as activator with the feasibility, when the mixed preparation of hydraulic blended cement, its highest blending amount must be less than 20%, only to meet the specification requirements. Single component excitation part on the strength of gypsumsystem material contribution to the larger, but the effect on mortar expansion behavior is also more significant.
Appears in Collections:	[Graduate Institute of Civil Engineering] Electronic Thesis & Dissertation

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