北疆稠油的延迟焦化轻质化加工  

UPGRADING XINJIANG BEUIANG HEAVY CRUDE OIL BY DELAYED COKING

作　　者：丛新兴[1] 肖知俊[1] 牛文俊[1] 

机构地区：[1]中国石油天然气股份有限公司克拉玛依石化公司,新疆克拉玛依市834003

出　　处：《炼油技术与工程》2006年第8期15-17,共3页Petroleum Refinery Engineering

摘　　要：产自克拉玛依油田的北疆稠油,其特点是密度、粘度、酸值、重金属含量、残炭和灰分均高,轻质油收率低,小于350℃馏出量17．55％,小于520℃馏出量52．13％。中国石油天然气股份有限公司克拉玛依石化公司直接将北疆稠油送延迟焦化装置加工,在大循环比操作条件下,汽油加柴油的收率达到70％以上,取得了很好的经济效益,在稠油轻质化加工方面进行了有意义的探索。装置在生产初期频繁出现弹丸焦,经过调整操作,抑制了弹丸焦的产生。生产表明,延迟焦化工艺应对环烷酸引起的设备腐蚀有其自身优势。The Beijiang crude oil from Karamay Oil Field is characterized by： high density, high viscosity, greater TAN, higher heavy metals, higher carbon residue and higher ash.. It is low in light oil yield （i. e. distillation at 350℃ is 17.55% and distillation at 520 ℃ is about 52.13% ）. To effectively process this crude oil, PetroChina Karamay Petrochemical Company directly feeds the Beijiang crude to detalyed coker. At the greater recycle ratio of the coker, the total yield of gasoline and diesel is greater than 70% , and good economic benefits have been achieved. In the initial stage of delayed coker operation, the unit was troubled with production of shot coke. After successful optimization of operating conditions, the shot coke production was minimized. The operation also shows that the delayed coking process has the unique advantages in preventing naphthenic acid corrosion.

关 键 词：北疆稠油 延迟焦化 电脱盐 循环比 弹丸焦 环烷酸腐蚀 

分 类 号：TE624.32[石油与天然气工程—油气加工工程]