生物质焦油裂解催化剂研究进展

对生物质焦油裂解催化剂的研究发展近况进行了阐述，总结了白云石、碱金属催化剂和镍基催化剂三大类催化剂的特点和应用情况，以及展望了焦油裂解技术的发展前景。     

一种可用于多组分分离的新型双固相吸附剂

Preparative or large scale adsorption chromatographies as separation technologies have been widely used in pharmacy,boichemicals, fine chemicals and food industries. Adsorbents are the core of the adoption and chromatographic separation techniques. The study and dLvelopment of the higher selectivity adsorbent and the higher mass transfer performance adsorbent are very active subjects in the field of adsorption separation science and technology.     

有机锡聚合物的合成与结构分析

利用双三丁基氧化锡与顺丁烯二酸酐聚甲基丙烯酸共聚物及三元共聚物的反应，叙述有机锡聚合物的合成与结构特性。对聚合物及其低分子模型化合物的ＩＲ光谱进行分析。     

合成气液相一步法制备二甲醚

介绍了二甲醚的液相合成气一步法制备工艺及其应用。     

不同环境条件下白腐菌漆酶生物修复土壤DDT污染的动力学(英文)

Biodegradation of 2,2-bis(p-chlorophenyl)-1,1,1-trichloroethane(DDT)in soil by laccase extract from white rot fungi under different experimental conditions was investigated.DDTs,which stands for the sum of p,p′-DDE,o,p′-DDT,p,p′-DDD and p,p′-DDT in soil was degraded efficiently,and the residue decreased rapidly during the first 15 days and then slowly during the period of 16-25 days.The biodegradation of DDTs in soil fitted the pseudo-first-order kinetics.For 5,10,15 and 25 days of incubation with laccase,the residue of DDTs in soil under different atmospheres was decreased by 20%-33%,34%-52%,41%-61%and 41%-69%respectively,under different flooding conditions that was decreased by 12%-17%,17%-30%,30%-45%and 35%-52%respectively, and for different soils that was decreased by 25%-34%,39%-53%,44%-58%and 47%-62%respectively.The half-life of DDTs in soil ranged from 15.07 to 32.95 days under O2,air or N2 atmospheres,23.07 to 40.71 days under different flooding conditions,and 18.78 to 28.88 days for different soils.Laccase is an efficient and safe agent for bioremediation of DDT-contaminated soil.     

超临界CO2流体从紫菜中萃取EPA和DHA的研究

采用超临界CO2 流体萃取技术从紫菜中萃取EPA和DHA ,研究了紫菜粉碎粒度、萃取温度、萃取压力和萃取时间对萃取率的影响。结果表明 :超临界CO2 流体从紫菜中萃取EPA和DHA的工艺可行 ,最佳的萃取条件为 :紫菜粉碎粒度为 2 0～ 80目 ,萃取温度 3 5℃ ,萃取压力 2 5MPa ,萃取时间 1 .5h。     

NOVEL DUAL SOLID PHASE ADSORBENT FOR MULTI-COMPONENT SEPARATION

Ｐｒｅｐａｒａｔｉｖｅｏｒｌａｒｇｅｓｃａｌｅａｄｓｏｒｐｔｉｏｎｃｈｒｏｍａｔｏｇｒａｐｈｉｅｓａｓｓｅｐａｒａｔｉｏｎｔｅｃｈｎｏｌｏｇｉｅｓｈａｖｅｂｅｅｎｗｉｄｅｌｙｕｓｅｄｉｎｐｈａｒｍａｃｙ ,ｂｏｉｃｈｅｍｉｃａｌｓ,ｆｉｎｅｃｈｅｍｉｃａｌｓａｎｄｆｏｏｄｉｎｄｕｓｔｒｉｅｓ.Ａｄｓｏｒｂｅｎｔｓａｒｅｔｈｅｃｏｒｅｏｆｔｈｅａｄｓｏｒｐｔｉｏｎａｎｄｃｈｒｏｍａｔｏｇｒａｐｈｉｃｓｅｐａｒａｔｉｏｎｔｅｃｈｎｉｑｕｅｓ.Ｔｈｅｓｔｕｄｙａｎｄｄｅｖｅｌｏｐｍｅｎｔｏｆｔｈｅｈｉｇｈ…     

一种新的与LDF模型相容的颗粒内浓度分布模型

提出一种新的n(t)次方浓度分布模型 ,不仅能从数学上导出线性推动力 (LDF)模型 ,而且在任何时刻都不会产生负的浓度分布剖面 .使用新的浓度分布积分计算的颗粒体积平均浓度完全等于由LDF模型直接计算的颗粒体积平均浓度 ,并且在整个时间域内 ,新的浓度分布曲线形状比经典的抛物线浓度分布和 5次方浓度分布曲线更接近和类似于颗粒内准确的浓度分布曲线 .     

生物质催化气化合成甲醇

生物质合成甲醇是CO2零排放的能量转换技术，避免了由于燃烧化石能源带来的温室气体效应问题。文章对生物质合成气的制备、净化、化学当量比调整等技术进行了介绍和分析，对生物质合成甲醇的经济性和前景进行了分析评价。