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二段抽
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     Steam Turboset Start by Intermediate Pressure Cylinder With Plant own Second Stage Extraction Steam of Neighour Set
     用邻机厂用二段抽汽进行中压缸启动
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     二.
     .
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     Two.
     .
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     PROCESS PROCEDURE FOR THE BAKING OF SECONDARY REFORMER
     转化炉烘炉工艺过程
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     COMPREHENSIVE UTILIZATION OF TWO\|STAGE PURIFIED RESIDUE
     净化渣综合利用
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     THE TECHNICAL REVAMPING OF TWO STAGE EXTRACTION IN LUBE OIL FURFURAL REFINING UNIT
     润滑油糠醛精制提工艺改造
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The technical revamping of two stage extraction in lube oil furfural refining unit with the capacity of 200000t/yr is performed by PetroChina Yumen General Petroleum Processing and Chemical Complex.A special process,that is the separated flowing of solvent and the combined flowing of extract oil,is adopted.After using the new process,the quality of the refined oil is improved,the colour is reduced by 0.5~1 unit,the acid number is reduced by 0.005~0.01 mgKON/g,the VI is increased by 1~2 unit,the yield of the...

The technical revamping of two stage extraction in lube oil furfural refining unit with the capacity of 200000t/yr is performed by PetroChina Yumen General Petroleum Processing and Chemical Complex.A special process,that is the separated flowing of solvent and the combined flowing of extract oil,is adopted.After using the new process,the quality of the refined oil is improved,the colour is reduced by 0.5~1 unit,the acid number is reduced by 0.005~0.01 mgKON/g,the VI is increased by 1~2 unit,the yield of the refined oil is increased by 2.45%,at the same time,the operation condition is improved also,and the total solvent-oil ratio is lowered by 0.23.

中国石油玉门炼油化工总厂对20万t/a润滑油糠醛精制装置进行二段抽提工艺改造,采用溶剂分流、抽出液合流的独特工艺。改造后精制油质量改善,比色下降0.5~1个比色号,酸值下降0.005~0.01mgKOH/g,粘度指数升高1~2个单位,精制油收率平均提高2.45%,同时操作条件改善,总溶剂比平均下降0.23。

To maximize the production of high added-value microcrystal wax, the existing 150,000 TPY super-critical butane deasphalting unit whose major product was FCC feedstock has been revamped into a 180,000 TPY propane deasphalting unit using 2-stage extraction-settlement process. The critical equipment of the unit is the high-efficiency solvent deasphalting extractor developed by Qinghua University. The operation of the unit shows that the unit is reliable in operation, high in light and heavy deasphalted oil yield...

To maximize the production of high added-value microcrystal wax, the existing 150,000 TPY super-critical butane deasphalting unit whose major product was FCC feedstock has been revamped into a 180,000 TPY propane deasphalting unit using 2-stage extraction-settlement process. The critical equipment of the unit is the high-efficiency solvent deasphalting extractor developed by Qinghua University. The operation of the unit shows that the unit is reliable in operation, high in light and heavy deasphalted oil yield and quality, low in solvent requirement and satisfactory in energy consumption.

为充分发挥南阳原油微晶蜡含量高的资源优势,最大限度生产高附加值微晶蜡产品,南阳石蜡精细化工厂将以生产催化裂化原料为主要目的产品的0.15 Mt/a超临界丁烷脱沥青装置改造为0.18 Mt/a丙烷脱沥青装置,改造采用脱沥青油二段抽提-沉降工艺,核心设备抽提塔应用清华大学开发的溶剂脱沥青高效萃取塔,几年来,装置运行安全平稳,产品轻、重脱沥青油的收率高且质量好,剂耗、装置能耗等技术经济指标均较理想。

 
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