双酚A酚胺树脂嵌段聚醚的合成及破乳性能研究

doi:10.3969/j.issn.1001-1803.2020.12.004

Abstract

Abstract:

Phenol-amine resin （BPA） was synthesized from bisphenol A and polyethylene polyamine. At the PO/EO mass ratio of 3:1, eight kinds of bi-block polyethers with different BPA/PO mass ratios were synthesized. The results showed that the drainage rate and drainage volume for the bi-block polyether with the BPA/PO mass ratio of 1:99 were higher than others. Then, at the BPA/PO mass ratio of 1:99, bi-block polyethers with different PO/EO mass ratios and multi-block polyethers with different PO/EO orders were synthesized. The properties of these oil demulsifiers were evaluated using bottle-testing method at 50 ℃ with the demulsifier mass concentration of 50 mg/L. The results showed that the demulsifying properties of BPA99 demulsifiers reached a maximum at the PO/EO mass ratio of 1.5:1. With the increase of EO content, the hydrophilicity of the demulsifier increased gradually, and thus these molecules would have an appropriate partition coefficient between the oil and aqueous phases. This would benefit the coalescence of water droplets and the decrease of strength of oil-water interfacial film. Dynamic interfacial tension curves indicated that these demulsifiers exhibited rapid interfacial diffusion. With the increase of EO content, the interfacial activity and the ability of interfacial displacement of the demulsifier increased gradually. For the multi-block polyethers with different PO/EO orders, the demulsifying properties of BPA9915 and BPA9910 with the structure of BPA-PO-EO were higher than others. The demulsifiers with the structure of BPA-EO-PO had harmful demulsifying properties. Compared with the bi-block polyethers （BPA9915 and BPA9910）, the tri-block polyethers and tetra-block polyethers showed a low drainage volume and a slow drainage rate. When the EO content in the terminal block was increased （the total number of EO units was fixed）, the demulsifying properties of the tetra-block polyether became excellent. Compared with TS-P100A and DM-4002 used in the oilfield, BPA9915 showed better demulsifying properties.

Key words: low-temperature demulsifier, phenol-amine resin, bisphenol A, block polyether

CLC Number:

TE868

ZENG Hao-jian,CHANG Zhen,JI Wen-xiong,TIE Lei-lei,LI Xiang. Study on the synthesis and demulsification of phenol-amine resin block polyether based on bisphenol A[J].China Surfactant Detergent & Cosmetics, 2020, 50(12): 833-841.

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References 20

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物质	w/%
饱和烃	48.0
芳香烃	17.4
蜡	5.8
胶质	25.2
沥青质	2.8

产品名称	BPA/PO质量比	PO/EO质量比
BPA4930	1: 49	3.0:1.0
BPA6930	1: 69	3.0:1.0
BPA9930	1: 99	3.0:1.0
BPA12930	1:129	3.0:1.0
BPA16930	1:169	3.0:1.0
BPA19930	1:199	3.0:1.0
BPA24930	1:249	3.0:1.0
BPA29930	1:299	3.0:1.0
BPA9935	1: 99	3.5:1.0
BPA9930	1: 99	3.0:1.0
BPA9925	1: 99	2.5:1.0
BPA9920	1: 99	2.0:1.0
BPA9915	1: 99	1.5:1.0
BPA9910	1: 99	1.0:1.0

原油破乳剂		50 ℃不同时间脱水量/mL					界面状况	水相清洁度	挂壁程度
名称	加药质量浓度/（mg·L^-1）	5 min	10 min	15 min	20 min	30 min	界面状况	水相清洁度	挂壁程度
BPA4930	50	1	2	3	3	3	齐	清	微挂
BPA6930	50	2	4	7	7	19	齐	清	微挂
BPA9930	50	3	5	10	10	24	齐	清	严重
BPA12930	50	2	4	6	7	12	齐	清	微挂
BPA16930	50	1	2	3	4	7	齐	清	微挂
BPA19930	50	2	2	3	4	6	齐	清	微挂
BPA24930	50	2	2	3	4	5	齐	清	微挂
BPA29930	50	1	2	3	3	4	齐	清	微挂
空白	0	0	0	0	0	0	—	—	—

原油破乳剂		50 ℃不同时间脱水量/mL					界面状况	水相清洁度	挂壁程度
名称	加药质量浓度/（mg·L^-1）	5 min	10 min	15 min	20 min	30 min	界面状况	水相清洁度	挂壁程度
BPA9935	50	4	4	4	4	11	齐	清	微挂
BPA9930	50	3	3	4	4	15	齐	清	微挂
BPA9925	50	4	4	4	5	19	齐	清	微挂
BPA9920	50	5	9	11	16	30	齐	清	微挂
BPA9915	50	8	16	20	25	31	齐	清	微挂
BPA9910	50	6	10	13	18	29	齐	清	微挂
空白	0	0	0	0	0	0	—	—	—

产品名称	嵌段方式	嵌段质量比例
BPA9915	BPA-PO-EO	1.5 :1.0
BPA9910	BPA-PO-EO	1.0 :1.0
BPA9915R	BPA-EO-PO	1.0 :1.5
BPA9910R	BPA-EO-PO	1.0 :1.0
BPA115	BPA-PO-EO-PO	1.0 :1.0 :0.5
BPA717	BPA-PO-EO-PO	0.75:1.0 :0.75
BPA511	BPA-PO-EO-PO	0.5 :1.0 :1.0
BPA1653	BPA-PO-EO-PO-EO	1.0 :0.67:0.5 :0.33
BPA1555	BPA-PO-EO-PO-EO	1.0 :0.5 :0.5 :0.5
BPA1356	BPA-PO-EO-PO-EO	1.0 :0.33:0.5 :0.67

Study on the synthesis and demulsification of phenol-amine resin block polyether based on bisphenol A

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