延迟焦化抑焦增液剂的研究

模拟延迟焦化反应，分别在395，405，415，460，500 ℃的条件下对辽河重油进行焦化反应，根据结焦率的不同筛选出最适合的条件加入抑焦增液剂，对加入抑焦增液剂抑焦效果最好的油样进行气体组分、各馏分段产率以及四组分分析，并对抑焦增液剂的抑焦效果进行评价。结果表明， 辽河重油中加入质量分数为0.5%的抑焦增液剂Ⅰ进行焦化反应，结焦率下降0.78百分点，(汽油+柴油)收率增加3.0~4.5百分点，稠油中(饱和分+芳香分)质量分数增加1.86~2.38百分点，气体产物中甲烷体积分数减少14.96百分点。表明抑焦增液剂起到减少焦炭、增加液体产品收率的作用。

STUDY OF ANTICOKING AND INCREASING LIQUID YIELD BOOSTER IN DELAYED COKING

The delayed coking reactions of Liaohe heavy oil was simulated in an autoclave reactor at 395 ℃，405 ℃, 415 ℃，460 ℃ and 500 ℃, respectively, with addition of different anticoking and increasing liquid yield boosters. With the best booster selected from above tests, the coking products gas, distillates and SARA of residue were analyzed. It is found that the addition of 0.5% booster I can reduce coke and methane in gas 0.78 percentage points and 14.96 percentage points, respectively. The yield of gasoline + diesel increases 3.0-4.5 percentage points，the amount of saturate+aromatics increases 1.86-2.38 percentage points, indicating the good functions of booster for anticoking and increasing liquid yield.