大型注水系统的运行优化

提出了油田大型注水系统优化运行的２类问题，１类是在注水单耗水于规定值的情况下，确定注水系统各注水站水泵运行台数，使注水系统中各注水站实际水量和分配注水量误差平方和最小；另１类是在注水系统各配水间配注误差不超过值的条件下，使注水系统总的能耗达到最小。     

双非贵金属催化nC_5异构化反应条件探索

考察正戊烷异构化应用双非贵金属丝光沸石催化剂的反应条件,实验在反应温度270～320℃,空速0.2～2.5h~(-1),氢油摩尔比2.0～6.0,反应压力1.4～4.0MPa的范围内进行。首先分析单因素对正戊烷异构化反应的影响,然后应用正交法获取了正戊烷异构化最佳反应条件和结果,即在反应温度300℃,反应压力3.0MPa,空速1.0h~(-1),氢油摩尔比4.0条件下,达到反应转化率0.6754,选择性0.9750;≥C_5异构烷产率0.6382;≥C_5液体收率0.9650。在100mL实验装置上连续进行1000h催化剂活性稳定性试验,证明双非贵金属丝光沸石异构化催化剂性能稳定。     

Curcumin loaded fish scale collagen-HPMC nanogel for wound healing application: Ex-vivo and In-vivo evaluation

The objective of the present investigation was to formulate curcumin loaded fish scale collagen (FSC)-hydroxypropyl methyl cellulose (HPMC K100) nanogel (CNG) for wound healing application. The curcumin nanoemulsion was prepared, characterized and loaded in FSC-HPMC nanogel. The nanogel was evaluated for ex-vivo permeation, in-vivo, skin irritation, and stability study. Ex-vivo permeation study demonstrated that CNG prolonged release and exhibited higher percent contraction value of wound compared to other formulations. In skin irritation study, formulation produced the score of less than 2 compared to control. It concluded that curcumin loaded FSC-HPMC nanogel could be prepared for wound healing applications.