MPTR型原油脱金属剂的低温溶解性能及脱金属效果评价

摘要

对MPTR型高效原油脱金属剂在DMF单一溶剂或DMF-TB混合溶剂中的低温溶解性能进行研究,考察不同组成的原油脱金属剂溶液在低温环境中的使用性能.结果表明,m(MPTR)∶m(DMF)分别为1.05∶0.95,1.06∶0.94,1.07∶0.93,1.08∶0.92的原油脱金属剂溶液均具有良好的MPTR低温溶解性能.MPTR型原油脱金属剂的原油脱金属实验结果表明:当原油脱金属剂加量在120～180 μg/g范围内时,TB溶剂不能起到提高原油中金属元素脱除率的作用;未使用TB溶剂且原油脱金属剂溶液中有效物的质量分数在50％～54％范围内时,有效物质量分数为53.5％的原油脱金属剂溶液的脱金属效果最好,其中钙元素的脱除率达到其最大值55.8％.%The solubility of the active matter in MPTR demetallization agent for crude oil in DMF solvent and mixed solvent of DMF and TB at low temperature was investigated.The applicability of demetallization agent solutions with different composition at low temperature was discussed.Experimental results illustrate that the active matter in MPTR can well dissolve in DMF solvent when the MPTR/DMF mass ratios are 1.05 ∶ 0.95,1.06 ∶ 0.94,1.07 ∶ 0.93,and 1.08 ∶ 0.92 at low temperature.In the dosage range of 120-180 μg/g of MPTR,single solvent TB cannot improve demetallization rate.Among the concentrations of the active matter in the range of 50％-54％ in solutions without TB,the performance of demetallization agent solutions with 53.5％ of active matter is the best,the calcium removal rate reaches the maximum value of 55.8％.