焦化轻蜡油掺炼加氢柴油试验研究

doi:10.11962/1006-4990.2019-0446

Abstract

Abstract:

The narrow distillates of different distillation temperature range were obtained by true boiling point distillation apparatus to precise separation of hydrogenated diesel,and the yield distribution and hydrocarbon composition distribution of narrow distillates were analyzed.The analysis results showed that with the distillation range temperature rise,narrow distillate yield reduced gradually,alkane in hydrogenated diesel mainly enriched in the narrow distillate of high distillation range temperature,and cyclanes and aromatic hydrocarbons mainly enriched in the narrow distillate of low distillation range temperature.After the coker light gas oil hydrocracking blending different narrow distillates,the distillate yield of hydrocrackate at 65~175 ℃ was increased and the distillate yield was decreased after the temperature above 175 ℃.The properties of hydrocrackate were different due to the different hydrocarbon compositions of narrow distillates.The aromatic potential value of 65~175 ℃ distillate obtained by blending narrow distillate rich in cycloalkanes and aromatics was the highest,and the hexadecane index of >175 ℃ distillate obtained by blending narrow distillate of alkanes was the highest.

Key words: hydrotreating, hydrocracking, coker light gas oil, hydrogenated diesel, naphtha

CLC Number:

TE624.4

Xiao Han,Nan Jun,Yang Tao,Song Guoliang,Zeng Huan,Zhang Jingcheng,Zhu Jinjian,Zhang Guohui. Experimental study on coker light gas oil hydrocracking by blending hydrogenated diesel[J]. Inorganic Chemicals Industry, 2020, 52(7): 94-98.

Figures/Tables 11

References 9

[1]	柯晓明. “十三五”时期中国炼油工业发展环境和发展思路探讨[J]. 国际石油经济, 2015,23(5):32-42.
[2]	吴子明, 曹正凯, 曾榕辉, 等. FDHC柴油中压加氢裂化技术的开发[J]. 石油炼制与化工, 2015,48(2):12-15.
[3]	蒋东红, 任亮, 辛靖, 等. 高选择性灵活加氢改质MHUG-Ⅱ技术的开发[J]. 石油炼制与化工, 2012,43(6):25-30.
[4]	赵广乐, 赵阳, 董松涛, 等. 大比例增产喷气燃料、改善尾油质量加氢裂化技术的开发与应用[J]. 石油炼制与化工, 2018,49(4):1-7.
[5]	邵为谠, 罗智, 蒋东红, 等. 兼产喷气燃料和重整原料MHUG技术的工业应用[J]. 石油炼制与化工, 2011,42(2):14-18.
[6]	曹正凯, 孙洪江, 牟帅, 等. 掺炼催化裂化柴油对蜡油加氢裂化反应的影响[J]. 石油炼制与化工, 2018,49(11):33-39.
[7]	李保良. 加氢裂化装置柴油回炼增产喷气燃料和石脑油[J]. 石油炼制与化工, 2018,49(3):71-74.
[8]	肖寒, 于海斌, 张景成, 等. THHC-Ⅰ轻油型加氢裂化催化剂的研究开发与工业化生产[J]. 化工进展, 2017,36(5):1946-1952.
[9]	韩崇仁. 加氢裂化工艺与工程[M]. 北京: 中国石化出版社, 2001: 589-592.

分析项目	形状	催化剂直径/mm	w （总金属）%	孔容/ （cm³·g^-1）	比表面积/ （m²·g^-1）	表观密度/（g·mL^-1）
THHN-1	齿球形	2.2~2.5	24.0~26.0	≥0.38	≥180	0.90~0.92
THHC-3	齿球形	2.2~2.5	20.0~22.0	≥0.34	≥260	0.78~0.80
分析方法分析方法	目测	游标卡尺	X射线荧光	氮气吸附脱附	氮气吸附脱附	量筒法

项目	密度/ （kg·m^-3）（20 ℃）	硫含量/ （μg·g^-1）	氮含量/ （μg·g^-1）	溴价/ g	w（10% 残炭）/ %	馏程范围/℃	烃类组成
							w（链烷烃）/%	w（总环烷烃）/%			w（总芳烃）/%
							w（链烷烃）/%	一环烷烃	二环烷烃	三环烷烃	总单环芳烃	总双环芳烃	三环芳烃
焦化轻蜡油	896.2	4 230	3 820	22.0	0.05	226~428	24.2	23.7	8.8	5.9	18.4	15.2	3.8
加氢柴油	828.6	3.4	40.0	—	—	160~381	38.1	26.5	8.4	2.8	20.9	2.9	0.4

原料	组分-1	组分-2	密度/ （kg·m^-3）	氮含量/ （μg·g^-1）		烃类组成
					w（链烷烃）/%	w（总环烷烃）/%			w（总芳烃）/%
					w（链烷烃）/%	一环烷烃	二环烷烃	三环烷烃	总单环芳烃	总双环芳烃	三环芳烃
C1	焦化轻蜡油	—	896.2	3 820	24.2	23.7	8.8	5.9	18.4	15.2	3.8
C2	焦化轻蜡油	<240 ℃馏分	874.5	2 678	24.9	26.2	8.9	4.5	21.9	10.9	2.7
C3	焦化轻蜡油	240~300 ℃馏分	876.7	2 685	29.0	22.7	9.8	5.1	19.1	11.6	2.7
C4	焦化轻蜡油	>300 ℃馏分	873.2	2 700	33.0	22.0	8.7	6.0	15.3	12.1	2.8

反应器	催化剂	反应氢分压力/MPa	平均反应温度/℃	体积空速*/h^-1	氢油体积比
R1	THHN-1	8.5	375~385	0.75/1.0	800
R2	THHC-3	8.5	385	0.75/1.0	800

原料	密度/ （kg·m^-3）	S含量/ （μg·g^-1）	N含量/ （μg·g^-1）	烃类组成
原料	密度/ （kg·m^-3）	S含量/ （μg·g^-1）	N含量/ （μg·g^-1）	w（正构烷烃）/%	w（异构烷烃）/%	w（环烷烃）/%
C1	636.5	<0.5	<0.5	9.8	85.8	4.4
C2	637.4	<0.5	<0.5	9.7	85.4	4.9
C3	635.9	<0.5	<0.5	10.6	85.6	3.8
C4	635.2	<0.5	<0.5	11.2	85.3	3.5

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Experimental study on coker light gas oil hydrocracking by blending hydrogenated diesel

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Figures/Tables 11

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原料	密度/ （kg·m^-3）	S含量/ （μg·g^-1）	N含量/ （μg·g^-1）	烃类组成				十六烷值指数
				w（链烷烃）/ %	w（环烷烃）/ %	w（芳烃）/%
				w（链烷烃）/ %	w（环烷烃）/ %	单环芳烃	多环芳烃
C1	833.6	8.0	4.0	44.3	35.3	16.5	3.9	54
C2	826.4	2.0	0.8	43.9	38.7	15.0	2.4	57
C3	825.5	3.0	1.0	49.2	35.6	12.7	2.5	59
C4	824.7	2.0	1.0	53.5	32.0	11.7	2.8	60

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