【炼化】源头减污，治水有方
[Refining] Reduce pollution at the source and control water well
石科院自主研发循环水系统长周期稳定运行水处理技术，入选国家节水技术目录。
Academy of Petroleum Sciences independently researched and developed the long-term stable operation water treatment technology of circulating water system, which was selected into the national water-saving technology catalog.
近日，国家工业和信息化部、水利部联合发布《国家鼓励的工业节水工艺、技术和装备目录(2025年)》，旨在加快先进节水工艺、技术和装备研发和应用推广，提升工业用水效率。中石化石油化工科学研究院有限公司(简称石科院)自主研发的“循环水系统长周期稳定运行水处理技术”名列其中，第五次入选该目录。
Recently, the Ministry of Industry and Information Technology and the Ministry of Water Resources jointly released the Catalogue of Industrial Water-saving Processes, Technologies and Equipment Encouraged by the State (2025), aiming at accelerating the research and development, application and promotion of advanced water-saving processes, technologies and equipment, and improving the efficiency of industrial water use. The "Water Treatment Technology for Long-term Stable Operation of Circulating Water System" independently developed by Sinopec Petrochemical Research Institute Co., Ltd. (referred to as Petrochemical Research Institute for short) was among them, and was selected into the catalogue for the fifth time.
早在1988年，石科院即在国内率先开展循环系统水处理剂研发，成为支撑炼化装置超长运行周期的关键水处理技术。30余年间，石科院先后完成循环水处理技术相关项目40余项，获得省部级科技进步奖6项。
As early as 1988, the Academy of Stone Sciences took the lead in the research and development of water treatment agents for circulating systems in China, which became the key water treatment technology supporting the ultra-long operation cycle of refining and chemical plants. In more than 30 years, the Academy of Stone Sciences has completed more than 40 projects related to circulating water treatment technology and won 6 provincial and ministerial scientific and technological progress awards.
开展自主创新
carry out independent innovation
循环水系统的用水量占企业总用水量的50%~90%，其稳定运行是保证工艺侧长周期运行的重要条件。为实现污水回用目标、提升节水效率，石化企业持续提高循环水系统的污水回用比和浓缩倍数，但也由此加剧了循环水系统运行中的三大痛点——腐蚀、结垢、微生物滋生。
The water consumption of the circulating water system accounts for 50% ~ 90% of the total water consumption of the enterprise, and its stable operation is an important condition to ensure the long-term operation of the process side. In order to achieve the goal of wastewater reuse and improve water-saving efficiency, petrochemical enterprises continue to improve the wastewater reuse ratio and concentration multiple of the circulating water system, but this also exacerbates the three major pain points in the operation of the circulating water system-corrosion, scaling, and microbial growth.
在无磷/低磷绿色缓蚀阻垢剂研制方面，石科院研发团队通过官能团构效关系分析等手段设计合成了多种类新结构的聚合物，并通过试验优选出兼具缓蚀、阻垢的多功能无磷聚合物，解决了传统药剂生产过程中反应剧烈、易暴聚的技术难题，实现了温和条件下的合成，且水处理剂生产过程中不产生“三废”，满足了绿色安全环保要求。
In the development of phosphorus-free/low-phosphorus green corrosion and scale inhibitor, the research and development team of China Academy of Sciences has designed and synthesized a variety of polymers with new structures by means of functional group structure-activity relationship analysis, and selected multifunctional phosphorus-free polymers with both corrosion inhibition and scale inhibition through experiments, which solved the technical problems of violent reaction and easy polymerization in the production process of traditional chemicals and realized the synthesis under mild conditions, and the water treatment agent does not produce "three wastes" in the production process, which meets the requirements of green safety and environmental protection.
研发团队又以该无磷聚合物为基础，针对不同水质开展了上百次动态模拟试验进行筛选验证，成功开发出包括RP系列、ZH系列循环水处理剂在内的系列高效无磷/低磷阻垢缓蚀剂及处理技术。
Based on the phosphorus-free polymer, the research and development team carried out hundreds of dynamic simulation tests for different water quality to screen and verify, and successfully developed a series of high-efficiency phosphorus-free/low-phosphorus scale and corrosion inhibitors and treatment technologies, including RP series and ZH series circulating water treatment agents.
“我们的阻垢缓蚀剂以无磷聚合物为核心剂，与使用含磷化合物的传统技术相比，不仅缓蚀阻垢效果更优，而且可以实现源头降磷，最大降幅可达70%。”石科院第二十五研究室主任赵锐介绍说。
"Our scale and corrosion inhibitor uses phosphorus-free polymer as the core agent. Compared with the traditional technology using phosphorus-containing compounds, it not only has better corrosion and scale inhibition effect, but also can reduce phosphorus at the source, with a maximum reduction of 70%." Zhao Rui, director of the 25th Research Office of the Academy of Stone Sciences, said.
在生物黏泥剥离降解技术方面，团队有针对性地开展技术创新，研发出既可高效将生物黏泥从设备表面剥离下来，又可将生物黏泥降解为水溶性小分子并随水排出系统的新技术，大幅提高了生物黏泥的剥离清洗效果，剥离率、降解率和杀菌率分别达到80%、80%和99.9%。
In terms of bio-slime stripping and degradation technology, the team has carried out targeted technological innovation and developed a new technology that can efficiently strip bio-slime from the surface of the equipment and degrade bio-slime into water-soluble small molecules and discharge the system with water, greatly improving the stripping and cleaning effect of bio-slime, with the stripping rate, degradation rate and sterilization rate reaching 80%, 80% and 99.9 respectively.
围绕性能优异的多功能无磷聚合物、无磷/低磷缓蚀阻垢剂和生物黏泥剥离降解技术等创新点，石科院累计获得国家授权专利50余件，发表论文15篇，出版专著1本，形成了完整的知识产权网络，技术自主可控。
Focusing on the innovative points of multi-functional phosphorus-free polymers, phosphorus-free/low-phosphorus corrosion and scale inhibitors and bio-slime stripping and degradation technologies with excellent performance, the Academy of Stone Sciences has obtained more than 50 national authorized patents, published 15 papers and 1 monograph, forming a complete intellectual property network with independent and controllable technology.
绿色效益显著
Significant green benefits
目前，石科院循环水系统长周期稳定运行水处理技术已在沧州炼化、中天合创等地处长江经济带、黄河流域、京津冀、沿海等不同区域的20余套循环水系统开展了工业试验和应用，为石化企业节水减排提供了重要的技术支撑。
At present, the long-term stable operation water treatment technology of the circulating water system of the Academy of Stone Sciences has been carried out in more than 20 sets of circulating water systems located in different regions such as the Yangtze River Economic Belt, the Yellow River Basin, Beijing-Tianjin-Hebei, and coastal areas, such as Cangzhou Refining and Chemical, Zhongtian Hechuang. Industrial tests and applications have provided important technical support for water conservation and emission reduction in petrochemical enterprises.
2022年5月起，长江流域某炼化一体化企业在炼油装置循环水系统中应用该技术，最高污水回用比超过90%，平均浓缩倍数达到5.41，每年减少磷排放量10.89 吨，碳钢试管平均腐蚀速率0.045 毫米/年，平均粘附速率5.31 毫克/(平方厘米·月)，显著优于行业平均水平，大幅降低了循环水场补新水量及磷排放量。
Starting from May 2022, a refining and chemical integration enterprise in the Yangtze River Basin will apply this technology in the circulating water system of the oil refining unit. The highest sewage reuse ratio exceeds 90%, the average concentration ratio reaches 5.41, the annual phosphorus emission reduction is 10.89 tons, the average corrosion rate of carbon steel test tubes is 0.045mm/year, and the average adhesion rate is 5.31 mg/(cm2/month), which is significantly better than the industry average, significantly reduced the amount of new water and phosphorus emissions from the circulating water field.
西北地区某煤化工企业应用该技术后，在平均污水回用比超过84%的情况下，碳钢试管平均腐蚀速率0.021毫米/年，仅为国家标准的三分之一，平均粘附速率5.442 毫克/(平方厘米·月)，各项指标显著优于行业平均水平。
After applying this technology to a coal chemical enterprise in northwest China, when the average sewage reuse ratio exceeds 84%, the average corrosion rate of carbon steel test tubes is 0.021mm/year, which is only 1/3 of the national standard, and the average adhesion rate is 5.442 mg/(cm2 · month), and various indicators are significantly better than the industry average.
京津冀地区某石化企业依托该技术，吨水处理药剂费用较应用前减少了约50%，循环水平均总磷质量浓度较应用前降低了70%以上。
Relying on this technology, a petrochemical enterprise in Beijing-Tianjin-Hebei region has reduced the cost per ton of water treatment chemicals by about 50% compared with that before application, and the average total phosphorus concentration in circulating water has decreased by more than 70% compared with that before application.
江西省某特大型炼化企业依托该技术，每年减少磷排放8.64 吨，节约新水约54.3万立方米，水冷器物料及循环水进出口温差均提高2℃~3℃，凉水塔供、回水温度分别降低2℃~3℃和1℃~2℃，有效降低了装置能耗，提高了冷却塔和换热器的能效。
Relying on this technology, a super-large refining and chemical enterprise in Jiangxi Province has reduced phosphorus emission by 8.64 tons per year, saved about 543000 cubic meters of new water, increased the temperature difference between the inlet and outlet of water cooler materials and circulating water by 2 ℃ ~ 3 ℃, and reduced the supply and return water temperatures of cooling tower by 2 ℃ ~ 3 ℃ and 1 ℃ ~ 2 ℃ respectively, effectively reducing the energy consumption of the device and improving the energy efficiency of cooling tower and heat exchanger.
“企业的实际应用证明，我们的技术实现了两个‘全覆盖’：补水水质从低钙硬碱度到超高钙硬碱度全覆盖，污水回用比从0%到100%全覆盖，甚至可以应对超标劣质回用水。企业循环水系统的腐蚀、粘附速率均远优于0.075毫米/年、15 毫克/(平方厘米·月)的管理标准。”赵锐表示。
"The practical application of the enterprise has proved that our technology has achieved two' full coverage': full coverage of water quality from low calcium hard alkalinity to ultra-high calcium hard alkalinity, full coverage of sewage reuse ratio from 0% to 100, and even can cope with excessive and inferior reuse water. The corrosion and adhesion rates of the enterprise circulating water system are far better than the management standards of 0.075mm/year and 15 mg/(cm2 · month)." Zhao Rui said.
打造绿色引擎
Building a Green Engine
从石科院循环水系统长周期稳定运行水处理技术的成功实践中不难看出，水处理技术早已不再是石化企业末端治理的“成本中心”，更是驱动水资源效率提升、环境负荷降低、经济效益增长的“绿色引擎”。
From the successful practice of the long-term stable operation of the water treatment technology of the circulating water system of the Academy of Sciences, it is not difficult to see that the water treatment technology is no longer the "cost center" of the end treatment of petrochemical enterprises, but also the "green engine" that drives the improvement of water resources efficiency, the reduction of environmental load and the growth of economic benefits ".
为进一步强化水处理领域“产学研用”一体化协同，推动水处理领域科技创新，服务石化企业水处理需求，中国石化于2024年7月正式成立中石化水质技术服务中心，由中国石化化工事业部归口指导，石科院承担日常工作，旨在围绕石化生产链构建绿色低碳的水处理技术创新链，实现“把企业研发落在实验室，把实验室建在产业链上”，加速科技成果从“研”到“产”的跨越。
In order to further strengthen the integration of "production, study, research and application" in the field of water treatment, promote scientific and technological innovation in the field of water treatment, and serve the water treatment needs of petrochemical enterprises, Sinopec officially established Sinopec Water Quality Technical Service Center in July 2024, under the guidance of Sinopec Chemical Division, and the Academy of Sciences undertakes daily work, aiming to build a green and low-carbon water treatment technology innovation chain around the petrochemical production chain, and realize "landing of enterprise R & D in the laboratory", accelerate the leap of scientific and technological achievements from "research" to "production.
据石科院副院长赵晓敏介绍，石科院将依托中石化水质技术服务中心，进一步强化自身“分子设计→定向合成→工业放大”的水处理剂研发全流程能力;建立水冷器生命周期管理系统，通过药剂性能评估与水冷器的状态识别与垢样垢型评价，为炼化企业循环水运行优化提供数据支撑;积极为石化企业提供水质集约化管理服务，及时诊断和解决企业水系统中存在的疑难问题;开展冷却塔能效测试评价、水务运行智能化提升、水网优化等专业技术服务，挖掘水务系统节能节水、绿色降碳的潜力，提升企业水资源利用水平。
According to Zhao Xiaomin, vice president of the Academy of Stone Sciences, the Academy of Stone Sciences will rely on Sinopec's Water Quality Technology Service Center to further strengthen its "molecular design → directional synthesis → industrial amplification" water treatment agent research and development capability in the whole process. A life cycle management system for water coolers will be established to provide data support for the optimization of circulating water operation in refining and chemical enterprises through reagent performance evaluation, state identification of water coolers and scale sample type evaluation; actively provide intensive water quality management services for petrochemical enterprises, timely diagnose and solve the difficult problems existing in the enterprise water system; carry out professional and technical services such as cooling tower energy efficiency test and evaluation, intelligent improvement of water operation, water network optimization, etc., tap the potential of energy saving and water saving and green carbon reduction of water system, and improve the utilization level of water resources in enterprises.
未来，石科院将继续把一滴滴科技创新“活水”汇入千万套炼化装置，汇聚成守护绿水青山、促进石化行业绿色低碳发展的广阔江河。
In the future, the Academy of Stone Sciences will continue to integrate drops of scientific and technological innovation "living water" into tens of millions of refining and chemical devices to form a vast river to protect green waters and mountains and promote the green and low-carbon development of the petrochemical industry.
责任编辑：郑 丹
Responsible editor: Zheng Dan
