T701添加剂生产中磺酸盐测定方法的改进及废醇水的回收利用

在T70 1石油磺酸钡防锈添加剂生产中 ,以滴定法代替渗透法测定磺酸盐的含量 ,用于生产控制 ,快速、稳定、可靠。对含磺酸盐质量分数 45 %的醇洗残液钡化 ,使磺酸钡对原料的收率由 18%提高到 2 0 %以上。钡化时 ,钡盐的加入质量分数最佳为 9%

Formulating Highway Paving Asphalts from the Vacuum Residue of a Paraffinic Crude

Many specifications of paving asphalts are closely related to their colloidal stability, which is, however, determined by their exact chemical compositions. The Yumen vacuum residue (YVR), the bottoms of a paraffinic crude oil is unfit for the production of highway paving asphalts directly, Neither are the de-oiled asphalts of the YVR. In this research a blending method and an optimal process of solvent de-asphalts are adopted to investigate the feasibility of formulating highway-paving asphalts from YVR. Results show that highway paving asphalts are formulated by blending solvent de-oiled asphalts with one or more of the materials including YVR, decanted oil from FCC process, and furfural extracts from lubricating base stocks. Further investigations indicate that adding oil decanted from FCC process to the solvent de-asphalting process can increase the de-asphalted oil production, improve the de-oiled asphalts quality, and thus optimize the refinery processes. The methodology of this research can be extended even to refineries processing non-paraffinic crude oils.

红外光谱法测定(乙醇)醚化催化汽油中残余乙醇的含量

建立了红外光谱法测定 (乙醇 )醚化汽油中残余乙醇的方法 ,运用可调厚度吸收池消除汽油背景所产生的影响。当乙醇质量浓度为 1 5～ 13g/dl时 ,其误差为 0 1%～ 1 5 % ,相对标准偏差小于 3 % ,回收率为 99 2 %～10 1 5 %。该方法简单、快速、准确 。