广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2014年
23期
51-53
,共3页
褐煤%次烟煤%过氧化氢%氧化
褐煤%次煙煤%過氧化氫%氧化
갈매%차연매%과양화경%양화
lignite%sub-bituminous coal%H2 O2%oxidation
在40℃利用5％H2 O2水溶液分别对神府次烟煤（ SF）、准东次烟煤（ ZD）、胜利褐煤（ SL）和先锋褐煤（ XF）四种低阶煤进行了氧解，计算其氧解转化率和CO2生成率，结合元素分析、红外光谱以及酸性官能团测定结果比较了四种低阶煤的氧解性能以及其结构特征对氧化解聚性能的影响。结果表明，煤的氧化解聚与变质程度密切相关，变质程度越高，氧化反应性降低。另外煤的氧含量越高，特别是羧基以及酚羟基含量较高时，氧化解聚程度增大。
在40℃利用5％H2 O2水溶液分彆對神府次煙煤（ SF）、準東次煙煤（ ZD）、勝利褐煤（ SL）和先鋒褐煤（ XF）四種低階煤進行瞭氧解，計算其氧解轉化率和CO2生成率，結閤元素分析、紅外光譜以及痠性官能糰測定結果比較瞭四種低階煤的氧解性能以及其結構特徵對氧化解聚性能的影響。結果錶明，煤的氧化解聚與變質程度密切相關，變質程度越高，氧化反應性降低。另外煤的氧含量越高，特彆是羧基以及酚羥基含量較高時，氧化解聚程度增大。
재40℃이용5％H2 O2수용액분별대신부차연매（ SF）、준동차연매（ ZD）、성리갈매（ SL）화선봉갈매（ XF）사충저계매진행료양해，계산기양해전화솔화CO2생성솔，결합원소분석、홍외광보이급산성관능단측정결과비교료사충저계매적양해성능이급기결구특정대양화해취성능적영향。결과표명，매적양화해취여변질정도밀절상관，변질정도월고，양화반응성강저。령외매적양함량월고，특별시최기이급분간기함량교고시，양화해취정도증대。
The oxidation of several low rank coals ( LRCs) , such as Shenfu sub-bituminous coal, Zhundong sub-bituminous coal, Shengli lignite and Xianfeng lignite, were carried out at 40 ℃ using 5%H2 O2 aqueous solution.The yields of the oxidized products and CO2 were calculated combined with element analysis and acidic functional groups contents of different LRCs.The results of coal oxidation depolymerization indicated that the oxidation activity of LRCs was related to its metamorphism degree.With the rise of coal rank, the aromaticity became higher and oxidation activity decreased.On the other hand, the oxidation activity of LRCs was related to the oxygen content of coal.With the rise of oxygen content, especially the content of carboxyl group and phenolic hydroxyl group increased, and the oxidation activity increased.
