Synthesis and perfomance evaluation of anionic reversed demulsification purifying agent

doi:10.11894/iwt.2018-0439

Industrial Water Treatment ›› 2019, Vol. 39 ›› Issue (8): 52-55. doi: 10.11894/iwt.2018-0439

• Research and Experiment • Previous Articles Next Articles

Synthesis and perfomance evaluation of anionic reversed demulsification purifying agent

Qing Wei(),Zhiyuan Li,Sufang Wang*,Houkai Teng,Hui Xu,Qiuwei Ding,Xiaowei Yu

CenerTech Tianjin Chemical Research and Design Institute Co., Ltd., Tianjin 300131, China

Received:2019-06-28 Online:2019-08-20 Published:2019-08-21
Contact: Sufang Wang E-mail:kaleidoscope@126.com
Supported by:
中国海洋石油总公司“十三五”重点科技项目(CNOOC-KJ135ZDXM)

阴离子型反相破乳净水剂的合成及性能评价

魏清(),李志元,王素芳*,滕厚开,徐慧,丁秋炜,于晓微

中海油天津化工研究设计院有限公司, 天津 300131

通讯作者: 王素芳 E-mail:kaleidoscope@126.com
作者简介:魏清(1980-),高级工程师。E-mail:kaleidoscope@126.com
基金资助:
中国海洋石油总公司“十三五”重点科技项目(CNOOC-KJ135ZDXM)

Abstract

Abstract:

A new anionic reversed demulsification purifying agent is synthesized from epichlorohydrin, diethylenetriamine and carbon disulfide. The infrared chromatographic characterization is carried out and the anion charge content and surface tension are tested. The results show that when used for oily wastewater treatment, when the purifying agent had a negative charge of -8 700 ueq/L and a surface tension of 5.0 mN/m, the temperature is 60℃, the dosage amount is 30 mg/L and the settling time is 30 min, the oil removal rate is as high as 95%. There is no negative impact on the demulsification and dehydration of heavy oil and could be used in conjunction with demulsifiers.

Key words: anion, reversed demulsification, water purifying agent, oil production sewage

摘要：

以环氧氯丙烷、二乙烯三胺和二硫化碳为原料，合成了新型阴离子型反相破乳净水剂，进行红外色谱表征、阴离子电荷含量与表面张力的测试。结果表明，用于含油污水处理，当净水剂产品的负电荷量为-8 700 μeq/L、表面张力为5.0 mN/m时，在温度为60 ℃、加药量为30 mg/L、沉降时间为30 min条件下，除油率高达95%，且对稠油原油的破乳脱水未产生不利影响，可与破乳剂配套使用。

关键词: 阴离子, 反相破乳, 净水剂, 含油污水

CLC Number:

TU991.2
X703

Qing Wei,Zhiyuan Li,Sufang Wang,Houkai Teng,Hui Xu,Qiuwei Ding,Xiaowei Yu. Synthesis and perfomance evaluation of anionic reversed demulsification purifying agent[J]. Industrial Water Treatment, 2019, 39(8): 52-55.

魏清,李志元,王素芳,滕厚开,徐慧,丁秋炜,于晓微. 阴离子型反相破乳净水剂的合成及性能评价[J]. 工业水处理, 2019, 39(8): 52-55.

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URL: https://www.iwt.cn/EN/10.11894/iwt.2018-0439

https://www.iwt.cn/EN/Y2019/V39/I8/52

Figures/Tables 4

References 6

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n（P）:n（A）	n（A）:n（C）	除油率/%
1:20	1:4	90
	1:3	89
	1:2	80
	1:1	70
	1:0.5	63
1:15	1:4	93
	1:3	85
	1:2	82
	1:1	73
	1:0.5	65
1:10	1:4	95
	1:3	87
	1:2	85
	1:1	75
	1:0.5	67
1:5	1:4	87
	1:3	78
	1:2	70
	1:1	68
	1:0.5	65

n（P）:n（A）	n（A）:n（C）	除油率/%
1:20	1:4	90
	1:3	89
	1:2	80
	1:1	70
	1:0.5	63
1:15	1:4	93
	1:3	85
	1:2	82
	1:1	73
	1:0.5	65
1:10	1:4	95
	1:3	87
	1:2	85
	1:1	75
	1:0.5	67
1:5	1:4	87
	1:3	78
	1:2	70
	1:1	68
	1:0.5	65

序号	破乳剂类型	反相破乳净水剂		原油脱水率/%	上层油中含水/%
序号	破乳剂类型	表面张力/（mN·m^-1）	电荷含量/（μeq·L^-1）	原油脱水率/%	上层油中含水/%
1	空白	/	/	3.0	40
2	聚醚	/	/	92.0	8.0
3	-	5.0	-8 700	3.2	44
4	聚醚	16.3	-8 700	52.0	11.0
5	聚醚		-8 000	52.0	11.2
6	聚醚		-7 000	53.0	11.0
7	聚醚		-3 000	53.0	7.8
8	聚醚	8.2	-8 700	54.0	9.2
9	聚醚		-8 000	54.0	9.0
10	聚醚		-7 000	58.0	9.0
11	聚醚		-3 000	58.0	7.8
12	聚醚	5.0	-8 700	90.0	8.0
13	聚醚		-8 000	90.0	7.8
14	聚醚		-7 000	91.0	7.8
15	聚醚		-3 000	91.0	7.8
16	聚醚	4.7	-8700	90.0	7.8
17	聚醚		-8 000	91.0	7.8
18	聚醚		-7 000	91.0	7.8
19	聚醚		-3 000	91.0	7.8

序号	破乳剂类型	反相破乳净水剂		原油脱水率/%	上层油中含水/%
序号	破乳剂类型	表面张力/（mN·m^-1）	电荷含量/（μeq·L^-1）	原油脱水率/%	上层油中含水/%
1	空白	/	/	3.0	40
2	聚醚	/	/	92.0	8.0
3	-	5.0	-8 700	3.2	44
4	聚醚	16.3	-8 700	52.0	11.0
5	聚醚		-8 000	52.0	11.2
6	聚醚		-7 000	53.0	11.0
7	聚醚		-3 000	53.0	7.8
8	聚醚	8.2	-8 700	54.0	9.2
9	聚醚		-8 000	54.0	9.0
10	聚醚		-7 000	58.0	9.0
11	聚醚		-3 000	58.0	7.8
12	聚醚	5.0	-8 700	90.0	8.0
13	聚醚		-8 000	90.0	7.8
14	聚醚		-7 000	91.0	7.8
15	聚醚		-3 000	91.0	7.8
16	聚醚	4.7	-8700	90.0	7.8
17	聚醚		-8 000	91.0	7.8
18	聚醚		-7 000	91.0	7.8
19	聚醚		-3 000	91.0	7.8

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