As the reporter stepped into the production area of Sinopec Zhenhai Refining & Chemical Co., Ltd., they were immediately captivated by the towering, modern refinery that stood as a symbol of China’s industrial progress. According to company officials, Zhenhai Refining & Chemical has a primary oil processing capacity of 20 million tons per year and an integrated crude oil processing capacity of 18.5 million tons annually. This makes it not only the largest crude oil processing base in China but also a major hub for importing crude oil, processing sour crude, exporting refined products, and serving as a key distribution center for crude oil.
During the Tenth Five-Year Plan period, the company significantly expanded its refining capabilities. Through continuous upgrades and technological improvements, the daily crude oil processing capacity reached 20 million tons per year. Last year alone, actual refining volume exceeded 16 million tons, accounting for about 10% of Sinopec's national total and 6% of the country's overall output. The company consistently ranks first in profitability within China's refining industry.
By the end of 2004, Zhenhai Refining & Chemical had total assets of 15.89 billion yuan, with net assets reaching 11.57 billion yuan. Its debt-to-asset ratio remained stable and healthy. In the 2004 "Top 100 Listed Companies in China" ranking published by Fortune China, the company ranked 13th. According to a performance evaluation by Salomon Consulting, Zhenhai Refining & Chemical is among the top 72 refineries in the Asia-Pacific region. Its advanced processing technology, especially in handling high-sulfur crude oil, represents the cutting edge of China’s refining sector.
Hong Bo, head of the Technology Development Section at the company's management department, participated in the “15†refinery expansion project. He emphasized that each previous project focused on the development and application of new technologies and self-researched processes. During the expansion, most equipment was domestically produced, while key processes used in-house developed methods. The company also introduced innovative models emphasizing low resource consumption, high utilization, and minimal emissions, paving the way for a circular economy within the refinery and chemical industries.
Zhenhai Refinery has implemented hundreds of clean production initiatives, with environmental investments accounting for 11% of total capital. By treating and reusing sulfur-containing wastewater, the plant recycles industrial water for cooling systems and collects all hydrogen gas for reuse. Water, gas, petrochemical by-products, and solid waste are all maximized for reuse, protecting the environment while delivering significant economic benefits.
Currently, the sulfur recovery rate at Zhenhai Refining & Chemical exceeds 99.8%, effectively controlling sulfur dioxide emissions. The wastewater reuse capacity reaches 600 tons per hour, with a reuse rate of over 90%, approaching the goal of zero discharge for industrial wastewater. After process optimization and facility upgrades, fresh water consumption per ton of crude oil has been reduced to 0.54 tons, and wastewater discharge per ton of crude oil has dropped to 0.18 tons—both reaching international standards. Despite doubling the crude oil processing volume, emissions of sulfur dioxide and chemical oxygen demand have significantly decreased, achieving both production growth and pollution reduction.
Zhenhai Refining & Chemical has become one of the first eight companies to receive the title of “National Environmental Friendly Enterprise.†It is the only such company in Sinopec and Zhejiang Province. After expanding its refining capacity, the company has driven growth in downstream industries, supplying products to enterprises outside the province via pipelines, including Shanghai Secco’s 900,000-ton-per-year ethylene project, which uses naphtha from Zhenhai Refining through an underwater pipeline.
In addition, Zhenhai Refining & Chemical actively develops downstream chemical products, currently producing 600,000 tons/year of urea, 500,000 tons/year of paraxylene, and 200,000 tons/year of polypropylene. The paraxylene project was listed as a key provincial initiative under the “15†plan. The company places great emphasis on the chemical market, adjusting its strategy during the Tenth Five-Year Plan to focus on larger refining and expanding chemical production. High-value-added products continue to be developed, and the Donghai brand asphalt has become the only domestic road asphalt brand used in Formula 1 racing tracks.
Concrete Reclaimer System
Concrete Reclaimer System
The Concrete Reclaimer System is the core equipment of concrete recycling system.
It is mainly used to separate the sewage in washing tanker and gravel remaining in concrete.
The equipment combines drum-type with spiral separation character.
It greatly improves former damageable parts.
Simple Operation & Intelligent Control
The washing system can be divided into one truck and double trucks system. It can increase or decrease according to customer`s requirements. The system allows increasing to five trucks at the same time utmost.
When the mixer car back to the set parking, the system will inject water and flush automatically. After roller washing, pour the waste water into the feeding hopper directly. Then clean and separate in the separator, and the separated materials were sent to the outlet respectively. Overflow water flows into sedimentation tank from the drainage ditch, then withdraw back by pump after three stages precipitation, and then recycle. The whole cleaning process of the mixing truck is about five minutes.
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Zhengzhou XinFeng machinery manufacturing Co. Ltd , https://www.xinfengmachinery.com