土耳其索玛电厂飞灰成分的变化

A. Karayiğit, Y. Bulut, X. Querol, A. Alastuey, S. Vassilev
{"title":"土耳其索玛电厂飞灰成分的变化","authors":"A. Karayiğit, Y. Bulut, X. Querol, A. Alastuey, S. Vassilev","doi":"10.1080/009083190523811","DOIUrl":null,"url":null,"abstract":"The Soma power plant in western Turkey consists of six 165-MW units (B1–4 and B5-6) and two small 22-MW units (A1–2), the first four units (B1–4) of which burn Early-Middle Miocene feed coals from the lower seam in central mines (southern Soma village), two units (B5–6) use Early-Middle Miocene and Upper Miocene feed coals from the lower and upper seams in Denis mines (northern Soma village), and the later unit A burns relatively clean coals after a washing plant from the lower seam in central mines. Characterization and chemistry of fly ashes in hoppers 1 and 2 from unit B1, and hoppers 1–4 from unit B5 have been studied to determine the variation in fly ash constituents/compositions between the two units. Twenty-four fly ash samples were collected from the hoppers in an array of electrostatic precipitators at 12 h intervals in two days. Data of proximate analysis showed that the fly ash samples have very low volatile matter contents and very high ash yields, as we expected. The ash yield in unit B1 slightly increases from coarser particles (hopper 1) to finer fly ash particles (hopper 2). Lower increase has been also detected in hoppers 1–4 of unit B5. X-ray diffraction (XRD) traces of six fly ash samples selected from each hopper showed that the forming minerals and phases are glass and quartz, the major minerals and phases include lime, anorthite, mullite, anhydrite, hematite, while the minor and accessory minerals are portlandite and gehlenite. Slightly greater contents of lime, portlandite and gehlenite, and lower contents of quartz have been determined in hoppers of unit B1 than in hoppers of unit B5. Results of elemental analysis showed that unit B5 has greater concentrations of Al, Na, K, Ti, Fe, S, As, B, Ba, Be, Bi, Cd, Co, Cr, Cs, Cu, Ga, Ge, Hf, Li, Mo, Nb, Ni, Pb, Rb, Sb, Sn, Ta, Th, Tl, V, W, Y, Zn, Zr, REEs, and lower concentrations of Ca and U than unit B1. Despite these distinctions the mean values for Mg, P, Mn, Sc, and Sr do not show significant variations in the two units. In addition, the mean values for hoppers in both units indicate that some volatile element concentrations, notably As, B, Bi, Cd, Pb, Zn, increases from coarse to finer particle size fly ashes. This implies that the Soma fly ash has variations between units B1 and B5, depending on feed coals and combustion conditions.","PeriodicalId":11841,"journal":{"name":"Energy Sources","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2005-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"16","resultStr":"{\"title\":\"Variations in Fly Ash Composition from the Soma Power Plant, Turkey\",\"authors\":\"A. Karayiğit, Y. Bulut, X. Querol, A. Alastuey, S. Vassilev\",\"doi\":\"10.1080/009083190523811\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The Soma power plant in western Turkey consists of six 165-MW units (B1–4 and B5-6) and two small 22-MW units (A1–2), the first four units (B1–4) of which burn Early-Middle Miocene feed coals from the lower seam in central mines (southern Soma village), two units (B5–6) use Early-Middle Miocene and Upper Miocene feed coals from the lower and upper seams in Denis mines (northern Soma village), and the later unit A burns relatively clean coals after a washing plant from the lower seam in central mines. Characterization and chemistry of fly ashes in hoppers 1 and 2 from unit B1, and hoppers 1–4 from unit B5 have been studied to determine the variation in fly ash constituents/compositions between the two units. Twenty-four fly ash samples were collected from the hoppers in an array of electrostatic precipitators at 12 h intervals in two days. Data of proximate analysis showed that the fly ash samples have very low volatile matter contents and very high ash yields, as we expected. The ash yield in unit B1 slightly increases from coarser particles (hopper 1) to finer fly ash particles (hopper 2). Lower increase has been also detected in hoppers 1–4 of unit B5. X-ray diffraction (XRD) traces of six fly ash samples selected from each hopper showed that the forming minerals and phases are glass and quartz, the major minerals and phases include lime, anorthite, mullite, anhydrite, hematite, while the minor and accessory minerals are portlandite and gehlenite. Slightly greater contents of lime, portlandite and gehlenite, and lower contents of quartz have been determined in hoppers of unit B1 than in hoppers of unit B5. Results of elemental analysis showed that unit B5 has greater concentrations of Al, Na, K, Ti, Fe, S, As, B, Ba, Be, Bi, Cd, Co, Cr, Cs, Cu, Ga, Ge, Hf, Li, Mo, Nb, Ni, Pb, Rb, Sb, Sn, Ta, Th, Tl, V, W, Y, Zn, Zr, REEs, and lower concentrations of Ca and U than unit B1. Despite these distinctions the mean values for Mg, P, Mn, Sc, and Sr do not show significant variations in the two units. In addition, the mean values for hoppers in both units indicate that some volatile element concentrations, notably As, B, Bi, Cd, Pb, Zn, increases from coarse to finer particle size fly ashes. This implies that the Soma fly ash has variations between units B1 and B5, depending on feed coals and combustion conditions.\",\"PeriodicalId\":11841,\"journal\":{\"name\":\"Energy Sources\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2005-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"16\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Energy Sources\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/009083190523811\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy Sources","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/009083190523811","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 16

摘要

土耳其西部索马电厂由6台165-MW机组(B1-4和B5-6)和2台22-MW小型机组(A1-2)组成,其中前4台机组(B1-4)使用中部矿区(索马村南部)下煤层早-中中新世和上中新世煤,2台机组(B5-6)使用丹尼斯矿区(索马村北部)下煤层和上煤层早-中中新世和上中新世煤。后一单元A从中部矿井的下煤层经过洗厂后燃烧相对清洁的煤。研究了B1机组1、2料斗和B5机组1 ~ 4料斗中粉煤灰的表征和化学性质,以确定两个机组间粉煤灰组分/组成的变化。在2天内,每隔12 h从一组静电除尘器的漏斗中收集24份粉煤灰样品。近似分析数据表明,粉煤灰样品的挥发分含量非常低,灰分产率非常高,与我们预期的一致。从粗颗粒(料斗1)到细颗粒(料斗2),B1机组的灰分产量略有增加。B5机组的料斗1 ~ 4的灰分产量也有较低的增加。每个料斗中选取的6个粉煤灰样品的x射线衍射(XRD)示谱表明,其形成矿物和物相为玻璃和石英,主要矿物和物相为石灰、钙长石、莫来石、硬石膏、赤铁矿,次要矿物和副矿物为波特兰矿和辉长石。B1单元料斗中石灰、波特兰铁矿和辉长石的含量略高于B5单元料斗中石英的含量。元素分析结果表明,B5单元的Al、Na、K、Ti、Fe、S、As、B、Ba、Be、Bi、Cd、Co、Cr、Cs、Cu、Ga、Ge、Hf、Li、Mo、Nb、Ni、Pb、Rb、Sb、Sn、Ta、Th、Tl、V、W、Y、Zn、Zr、REEs的浓度高于B1单元,Ca、U的浓度低于B1单元。尽管存在这些差异,Mg、P、Mn、Sc和Sr的平均值在两个单位中没有显着变化。此外,两个单元料斗的平均值表明,一些挥发性元素的浓度,特别是As, B, Bi, Cd, Pb, Zn,从粗到细粒度的粉煤灰增加。这意味着Soma飞灰在B1和B5单元之间存在差异,这取决于原料煤和燃烧条件。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Variations in Fly Ash Composition from the Soma Power Plant, Turkey
The Soma power plant in western Turkey consists of six 165-MW units (B1–4 and B5-6) and two small 22-MW units (A1–2), the first four units (B1–4) of which burn Early-Middle Miocene feed coals from the lower seam in central mines (southern Soma village), two units (B5–6) use Early-Middle Miocene and Upper Miocene feed coals from the lower and upper seams in Denis mines (northern Soma village), and the later unit A burns relatively clean coals after a washing plant from the lower seam in central mines. Characterization and chemistry of fly ashes in hoppers 1 and 2 from unit B1, and hoppers 1–4 from unit B5 have been studied to determine the variation in fly ash constituents/compositions between the two units. Twenty-four fly ash samples were collected from the hoppers in an array of electrostatic precipitators at 12 h intervals in two days. Data of proximate analysis showed that the fly ash samples have very low volatile matter contents and very high ash yields, as we expected. The ash yield in unit B1 slightly increases from coarser particles (hopper 1) to finer fly ash particles (hopper 2). Lower increase has been also detected in hoppers 1–4 of unit B5. X-ray diffraction (XRD) traces of six fly ash samples selected from each hopper showed that the forming minerals and phases are glass and quartz, the major minerals and phases include lime, anorthite, mullite, anhydrite, hematite, while the minor and accessory minerals are portlandite and gehlenite. Slightly greater contents of lime, portlandite and gehlenite, and lower contents of quartz have been determined in hoppers of unit B1 than in hoppers of unit B5. Results of elemental analysis showed that unit B5 has greater concentrations of Al, Na, K, Ti, Fe, S, As, B, Ba, Be, Bi, Cd, Co, Cr, Cs, Cu, Ga, Ge, Hf, Li, Mo, Nb, Ni, Pb, Rb, Sb, Sn, Ta, Th, Tl, V, W, Y, Zn, Zr, REEs, and lower concentrations of Ca and U than unit B1. Despite these distinctions the mean values for Mg, P, Mn, Sc, and Sr do not show significant variations in the two units. In addition, the mean values for hoppers in both units indicate that some volatile element concentrations, notably As, B, Bi, Cd, Pb, Zn, increases from coarse to finer particle size fly ashes. This implies that the Soma fly ash has variations between units B1 and B5, depending on feed coals and combustion conditions.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信