Application of non-phosphorus formula in coal chemical circulating cooling water system

doi:10.11894/iwt.2019-0142

Industrial Water Treatment ›› 2019, Vol. 39 ›› Issue (12): 110-112. doi: 10.11894/iwt.2019-0142

• Exchanges of Experiences • Previous Articles

Application of non-phosphorus formula in coal chemical circulating cooling water system

Zhi Ouyang¹(),Zhiding Gong²,Jing Gao²,Jia He²,Yadong Li²,Changxi Zhang²,Ji Yuan²,Wenbin Su²

1. Water Treatment Center, Jinling Petrochemical Co., SINOPEC, Nanjing 210033, China
2. Jiangsu Kelien Water Purification Technology Co., Ltd., Changzhou 213145, China

Received:2019-10-31 Online:2019-12-20 Published:2019-12-21

无磷配方在煤化工循环冷却水系统中的应用研究

欧阳志¹(),弓志定²,高晶²,何佳²,李亚东²,张长喜²,袁吉²,苏文斌²

1. 中石化金陵石化公司水处理中心, 江苏南京 210033
2. 江苏科利恩净水科技有限公司, 江苏常州 213145

作者简介:欧阳志(1970-)高级工程师,站长。电话:025-58972037, E-mail:ouyz.jlsh@sinopec.com

Abstract

Abstract:

A new environmentally friendly non-phosphorus water treatment formula is developed. The formula performance is investigated through the static scale inhibition test, rotating coupon corrosion test and dynamic simulation test, respectively. The formula is applied on-site in the circulating water field of the coal chemical plant. The results prove that the treatment effect of the non-phosphorus formula can fully meet the technical requirements of the Code for Design of Industrial Recirculating Cooling Water Treatment(GB/T 50050-2017), and the sewage drainage reaches the first-level discharge standard, specified in the Integrated Wastewater Discharge Standard(GB 8978-1996).

Key words: coal chemical industry, circulating cooling water, non-phosphorus

摘要：

研制了一种新型环保无磷水处理配方，进行静态阻垢试验、旋转挂片腐蚀试验和动态模拟试验。煤化工装置循环水场现场应用证明，该无磷配方的处理效果完全能够达到GB/T 50050-2017《工业循环冷却水处理设计规范》的技术要求，排污水可达到GB 8978-1996《污水综合排放标准》中的一级排放标准要求。

关键词: 煤化工, 循环冷却水, 无磷

CLC Number:

TQ085+.4

Zhi Ouyang,Zhiding Gong,Jing Gao,Jia He,Yadong Li,Changxi Zhang,Ji Yuan,Wenbin Su. Application of non-phosphorus formula in coal chemical circulating cooling water system[J]. Industrial Water Treatment, 2019, 39(12): 110-112.

欧阳志,弓志定,高晶,何佳,李亚东,张长喜,袁吉,苏文斌. 无磷配方在煤化工循环冷却水系统中的应用研究[J]. 工业水处理, 2019, 39(12): 110-112.

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URL: https://www.iwt.cn/EN/10.11894/iwt.2019-0142

https://www.iwt.cn/EN/Y2019/V39/I12/110

项目	数值
循环水量/(m³·h^-1)	36 000
保有水量/m³	14 000
补充水量/(m³·h^-1)	约400
浓缩倍数(以K⁺计)	≥4.5
冷却水进出口温差/℃	10左右
冷换设备材质	主要为碳钢、不锈钢，少量铜

项目	数值
循环水量/(m³·h^-1)	36 000
保有水量/m³	14 000
补充水量/(m³·h^-1)	约400
浓缩倍数(以K⁺计)	≥4.5
冷却水进出口温差/℃	10左右
冷换设备材质	主要为碳钢、不锈钢，少量铜

项目	数值
pH	7.91
浊度/NTU	3.6
电导率/(μS·cm^-1)	302
总碱度(以CO₃计)/(mg·L^-1)	92.35
总硬度(以CO₃计)/(mg·L^-1)	121.03
钙硬度(以CO₃计)/(mg·L^-1)	92.67
镁硬度(以CaCO₃计)/(mg·L^-1)	28.36
总铁/(mg·L^-1)	0.23
氯化物/(mg·L^-1)	28.16
硫酸根/(mg·L^-1)	31.44
总溶解固体/(mg·L^-1)	251

项目	数值
pH	7.91
浊度/NTU	3.6
电导率/(μS·cm^-1)	302
总碱度(以CO₃计)/(mg·L^-1)	92.35
总硬度(以CO₃计)/(mg·L^-1)	121.03
钙硬度(以CO₃计)/(mg·L^-1)	92.67
镁硬度(以CaCO₃计)/(mg·L^-1)	28.36
总铁/(mg·L^-1)	0.23
氯化物/(mg·L^-1)	28.16
硫酸根/(mg·L^-1)	31.44
总溶解固体/(mg·L^-1)	251

药剂	阻垢率/%	腐蚀速率/(mm·a^-1)
空白	—	0.532 5
ZH482WP 90 mg/L	97.13	0.021 3
ZH482WP 110 mg/L	98.57	0.015 2

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无磷配方在煤化工循环冷却水系统中的应用研究

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项目	污垢沉积速度/(mg·cm^-2·月^-1)	不锈钢腐蚀速率/(mm·a^-1)	碳钢腐蚀速率/(mm·a^-1)
试验值	5.56	0.001 3	0.015 9
GB/T 50050—2017	≤15	≤0.005	≤0.075

项目	pH	NH₃-N/(mg·L^-1)	COD/(mg·L^-1)	总磷(以PO₄^3-计)/(mg·L^-1)
最高值	8.96	1.29	58.22	0.44
最低值	8.40	0.18	25.76	0.10
平均值	8.73	0.71	45.06	0.19

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