桦甸油页岩有机岩相特征及其富集特性

王越; 高燕; 白向飞; 武琳琳

桦甸油页岩有机岩相特征及其富集特性

王越^{1, 2, ,},
高燕^{1, 2},
白向飞^{1, 2},
武琳琳^{1, 2}

1.
煤炭科学技术研究院有限公司煤化工研究分院, 北京 100013
2.
煤炭资源高效开采与洁净利用国家重点实验室, 北京 100013

基金项目:

国家重点基础研究发展规划 973 program

国家重点基础研究发展规划 2014CB744302

详细信息

通讯作者:
王越, Tel: 010-84262972, E-mail: wangyue8211@sina.com

中图分类号: P618.12
计量
- 文章访问数: 73
- HTML全文浏览量: 57
- PDF下载量: 8
- 被引次数: 0
出版历程
- 收稿日期: 2015-09-15
- 修回日期: 2015-11-26
- 网络出版日期: 2021-01-23
- 刊出日期: 2016-03-30

Petrology and enrichment characteristics of organic matters in Huadian oil shale

WANG Yue^{1, 2
, ,},
GAO Yan^{1, 2},
BAI Xiang-fei^{1, 2},
WU Lin-lin^{1, 2}

1.
Beijing Research Institute of Coal Chemistry, Coal Science and Technology Research Institute Co., Ltd. Beijing 100013, China
2.
State Key Laboratory of Coal Mining and Clean Utilization, Beijing 100013, China

Funds:

Major State Basic Research Development Program of China 973 program

Major State Basic Research Development Program of China 2014CB744302

摘要

摘要: 为了研究油页岩中有机组分结合特性对有机质分离富集的影响, 利用薄片透射光、反射单偏光、反射荧光等煤岩学研究手段研究桦甸油页岩中有机组分的种类、含量及赋存状态, 并利用两种密度分离手段研究油页岩中有机质的解离特性.结果表明, 桦甸油页岩有机质的变质程度较低, 有机显微组分以沥青质体为主, 占85.8%, 镜质组和惰质组含量较低; 有机质与矿物结合紧密, 形成有机-矿物复合体, 密度分离方法对有机质与矿物质分离效果有限; 浮沉实验小于1.40g/cm³密度级样品的热解失重量及失重速率均低于较高密度级产物, 这与颗粒状镜质组、惰质组与矿物质结合程度相对较差, 在较低密度级产物中富集有关.
- 桦甸油页岩 /
- 矿物沥青基质 /
- 分离富集
Abstract: The enrichment characteristics of organic matters were determined by its petrology. The types and contents of macerals in Huadian oil shale were examined with 3 common microscope lighting conditions (transmitted light, reflected polarized light and reflected fluorescent light). Then two separation methods based on density difference were used to study liberation of organic mattes from minerals. A low degree of metamorphism was found for organic matters in Huadian oil shale. The macerals were dominated by bituminite accounting for 85.8%. The contents of vitrinite and inertinite were low. Closely integrated with minerals, the organic matters were formed as organic-mineral aggregates. It was difficult to separate the organic matters from minerals using physical methods. Both the weight loss and differential weight loss of samples with density < 1.40g/cm³ were lower than that of higher density from float-and-sink analysis. This was attributed to that a small amount of vitrinite and inertinite particles was enriched in low density product due to their less integration with mineral matter.
- Huadian oil shale /
- mineral-bituminous matrix /
- separation and enrichment

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图 1 桦甸油页岩的透射光特征

Figure 1 Characteristics of Huadian oil shale in transmitted light (transmitted light ×50)

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图 2 桦甸油页岩中的有机显微组分

Figure 2 Macerals in Huadian oil shale

((a)-(d): Reflected polarized light, oil immersed, ×500; (e)、(f): Reflected fluorescent light under blue-violet light irradiation, oil immersed, ×500)
(a): Vitrinite; (b): Vitrinite; (c): Vitrinite, Liptinite; (d): Inertinite; (e): Bituminite; (f): Alginite, Bituminite

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图 3 桦甸油页岩浮沉实验

Figure 3 Results of float-and-sink analysis of Huadian oil shale

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图 4 桦甸油页岩离心分离

Figure 4 Results of centrifugal separation of Huadian oil shale

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图 5 桦甸油页岩的热解特性曲线

Figure 5 Weight loss and differential weight loss curves of Huadian oil shale

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图 6 桦甸油页岩浮沉产物的热解特性曲线

Figure 6 Weight loss and differential weight loss curves in products from the float-and-sink analysis

(a): TG curves; (b): DTG curves

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图 7 桦甸油页岩离心产物的热解特性曲线

Figure 7 Weight loss (TG) (a) and differential weight loss (DTG) (b) curves in products from the centrifugal separation

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表 1 桦甸油页岩的基本性质

Table 1 Properties of Huadian oil shale

Proximate analysis w/%					Ultimate analysis w/%						Gray-King assay w/%
M_ad	A_d	V_d	FC_d		C_daf	H_daf	N_daf	O_daf^*	S_{t, d}		water_ad	char_d	tar_d
4.91	73.29	25.11	1.6		57.28	7.60	1.46	29.99	3.39		5.00	84.71	11.23
Q_GCV^**/(MJ·kg^-1)			ash compositions w/%
Q_GCV^**/(MJ·kg^-1)			SiO₂	Al₂O₃	Fe₂O₃	TiO₂	CaO	MgO	K₂O	Na₂O	MnO₂	SO₃	P₂O₅
6.91			58.34	15.82	6.73	0.85	10.09	1.66	1.75	0.91	0.22	2.65	0.36
^: by difference; ^*: gross calorific value, dry basis

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表 2 桦甸油页岩岩相特征

Table 2 Petrological characteristics of Huadian oil shale

R_max^o /%	Maceral group w/%
R_max^o /%	alginite	bituminite	liptinite	vitrinite	inertinite
0.45	5.6	85.8	2.7	4.6	1.3

下载: 导出CSV

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