华南理工大学学报(自然科学版)
華南理工大學學報(自然科學版)
화남리공대학학보(자연과학판)
JOURNAL OF SOUTH CHINA UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE EDITION)
2015年
6期
1-8
,共8页
邱学青%张志鸣%杨东杰%黄恺%周明松
邱學青%張誌鳴%楊東傑%黃愷%週明鬆
구학청%장지명%양동걸%황개%주명송
木质素磺酸钠%木质素羧酸钠%碳酸钙%吸附%牺牲剂
木質素磺痠鈉%木質素羧痠鈉%碳痠鈣%吸附%犧牲劑
목질소광산납%목질소최산납%탄산개%흡부%희생제
sodium lignosulfonate%carboxymethylated lignin%calcium carbonate%adsorption%sacrificial agent
研究了pH值、尿素、无机盐对木质素磺酸钠( SL)在碳酸钙表面的吸附特性的影响,发现静电作用和氢键作用不是SL在碳酸钙表面吸附的主要驱动力,而具有较强络合能力的盐类能显著降低SL的吸附量,采用氯化锂封闭SL的部分羧基也能使其吸附量有所降低,说明SL的羧基与碳酸钙之间的络合作用是控制其吸附的主要驱动力.文中还制备了高羧基含量(2.59 mmol/g)的木质素羧酸钠(CAL),发现CAL用作三次采油牺牲剂时,在较低含量下即具有显著的牺牲效果,最大牺牲值可达95.15%;同时CAL和SL都与十二烷基苯磺酸钠具有较好的协同效果.
研究瞭pH值、尿素、無機鹽對木質素磺痠鈉( SL)在碳痠鈣錶麵的吸附特性的影響,髮現靜電作用和氫鍵作用不是SL在碳痠鈣錶麵吸附的主要驅動力,而具有較彊絡閤能力的鹽類能顯著降低SL的吸附量,採用氯化鋰封閉SL的部分羧基也能使其吸附量有所降低,說明SL的羧基與碳痠鈣之間的絡閤作用是控製其吸附的主要驅動力.文中還製備瞭高羧基含量(2.59 mmol/g)的木質素羧痠鈉(CAL),髮現CAL用作三次採油犧牲劑時,在較低含量下即具有顯著的犧牲效果,最大犧牲值可達95.15%;同時CAL和SL都與十二烷基苯磺痠鈉具有較好的協同效果.
연구료pH치、뇨소、무궤염대목질소광산납( SL)재탄산개표면적흡부특성적영향,발현정전작용화경건작용불시SL재탄산개표면흡부적주요구동력,이구유교강락합능력적염류능현저강저SL적흡부량,채용록화리봉폐SL적부분최기야능사기흡부량유소강저,설명SL적최기여탄산개지간적락합작용시공제기흡부적주요구동력.문중환제비료고최기함량(2.59 mmol/g)적목질소최산납(CAL),발현CAL용작삼차채유희생제시,재교저함량하즉구유현저적희생효과,최대희생치가체95.15%;동시CAL화SL도여십이완기분광산납구유교호적협동효과.
By investigating the influences of pH value , urea and inorganic salts on the adsorption property of sodium lignosulfonate ( SL) on calcium carbonate ( CaCO3 ) , it is found that the electrostatic interaction and the hydro-gen bonding are not the main adsorption driving forces of SL adsorption on CaCO 3 surface , and that the salts with strong complexation ability as well as the blocking of some carboxyl groups of SL with lithium chloride may decrease the adsorption capacity of SL , which means that the complexation between the carboxyl of SL and CaCO 3 is the main adsorption driving force.Moreover, by using carboxymethylated lignin (CAL) with high carboxyl content (2.59 mmol/g) as a sacrificial agent in tertiary oil recovery , it is found that CAL is of outstanding sacrificial effect even at low mass concentration , with a maximum sacrificial effect value being up to 95.15%; and that both CAL and SL possess good compounding effect with sodium dodecyl benzene sulfonate .