软土地基真空预压处理工艺现场试验对比研究

真空预压排水工法适用于处理厚度较大的软弱黏性土层,其施工方便,作业效率高,适于大规模软弱地基加固。但排水板间距和透水通道等工艺的选择直接影响到固结效果、工期和经济费用,因此,通过现场试验,对不同工艺试验区的试验过程、试验结果进行定性、定量对比分析,以取得工法分析模式的校正参数,为将来大面积地基处理提供参考。     

溶剂脱氮-低压缓和加氢精制重油催化柴油

本方法采用溶剂脱氮－低压缓和加氢精制组合工艺，在脱除重油催化柴油硫、氮等杂质，提高催化柴油安定性和油品质量的同时，可直接生产符合GB252－94一等品柴油。     

用ZnO处理含硫化碱污水

以ZnO为脱硫剂 ,在 70℃～ 90℃条件下与含硫化碱污水反应 1 0h ,得到的ZnS于 80 0℃～ 90 0℃煅烧后转化为ZnO和SO2 ,转化率可达 98%以上 ,NaOH和ZnO可以循环使用 ,并可回收单质硫。     

石化企业生产管理优化方案的实施

石化企业生产过程具有连续性、平行性、比例性、节奏性和适应性的特点，对生产工艺过程的优化管理尤为重要。文中结合大庆石化公司的生产装置的实际运行情况，阐述了生产管理优化方案的实施过程，对今后的生产管理提出了相应的建议。     

炼油厂重质馏分油加氢改质的研究

以炼油厂重质馏分油为原料，采用缓和的加氢裂化工艺将其改质为优质的轻质油品，同时也为蒸汽裂解制乙烯提供了优质的原料。因此，该研究具有很强的实用性。     

Influence of Modified Medical Stone on Behavior of Sulfur during Pyrolysis of Longma Coal

The influence of Co Mo P/medical stone and SO_4~(2-)/medical stone on sulfur behavior during the Longma coal pyrolysis was investigated in a fixed bed reactor. Moreover, the kinetics was also studied. It is found that adding SO_4~(2-)/medical stone was favorable to removal of volatile matter, while adding Co Mo P/medical stone could inhibit the emission of volatiles. Moreover, the results also showed that adding Co Mo P/medical stone made the total sulfur retention higher, while adding SO_4~(2-)/medical stone made the total sulfur retention lower. Adding modified medical stone was beneficial to removal of sulfate sulfur and pyritic sulfur, while it was beneficial to retaining organic sulfur in the residue. Furthermore, adding Co Mo P/medical stone and SO_4~(2-)/medical stone all could increase the emission of H_2S when the temperature was higher than 450℃. Judging from the kinetics study, it also can be known that addition of the natural minerals could result in a decrease of the pre-exponential factor and also change the apparent activation energy upon comparing the apparent activation energy and the pre-exponential factor of raw Longma coal at 435—537℃.     

ZnO处理含硫污水的技术探讨

以ZnO为脱硫剂在70－90℃条件下与含硫污水反应1．0h，可得到较满意的效果，NaOH和ZnO可以循环使用；并可回收单质硫。