在小试成熟工艺技术的基础上,建成1套年产1kt润滑油清净剂的超重力反应器中试装置,采用该装置进行生产高碱值石油磺酸钙润滑油清净剂的中试试验研究,并对高碱值石油磺酸钙合成过程中产生的"三废"进行处理。中试试验结果表明:碳酸化反应的最佳时间为58~62min,该时间内,反应产物的碱值最高达到315.2mgKOH/g,相应的运动黏度为35.6mm^2/s;采用卧式螺旋离心机对粗产品进行预处理的效果好于传统釜式法的预沉降脱渣方法;超重力反应器中试生产的高碱值石油磺酸钙润滑油清净剂的性能优于传统釜式工艺产品,且满足石化行业标准SH/T 0042—91中一级品的质量要求。确定的"三废"处理技术的应用效果良好,实现了超重力中试生产过程的低污染物排放。
Based on the mature laboratory test results,a 1 kt/a high gravity pilot plant unit was set up to produce overbased calcium petroleum sulfonate detergent for lube oil,optimum process conditions and the post treatments of "three wastes" from production were investigated.Results of pilot plant tests showed that the optimal reaction time of carbonation was in the range of 58—62 min,during this time,the base number and the kinetic viscosity of the product was 315.2 mgKOH/g and 35.6 mm^2/s,respectively.Using horizontal screw centrifuge to pre-treat the crude product was better than that of the conventional gravitational settling method with tank.The quality of the overbased calcium petroleum sulfonate detergent prepared by high gravity pilot plant could well meet the 1st class product requirements of SH/T 0042—91 trade standard,and its detergent performance was better than that of the conventional tank produced one.In addition,the adopting post treatments could ensure low discharge of pollutants during production.