In the East China Sea Chemical Base, for example, visitors are greeted by a garden-like enterprise where no towering chimneys emit smoke. The sky remains clear and blue, with white clouds drifting above. All the green water seen here comes from a recycled wastewater treatment system, saving more than 250,000 tons of water annually and significantly reducing energy consumption and emissions. This is just one of the many highlights of the energy conservation and emission reduction efforts at the China Eastern Chemical Base.
According to the person in charge of China National Chemicals, the company has made remarkable progress not only in water conservation but also in wastewater treatment and carbon dioxide reduction. As part of its Eleventh Five-Year Development Plan, the company has set clear targets for energy efficiency and environmental protection. Each subsidiary has signed a responsibility agreement with the headquarters to ensure these goals are met.
One of the most effective ways for a chemical company to reduce energy use and emissions is to maintain long-term, stable operations. When a plant runs continuously, it achieves the lowest overall energy consumption and minimizes waste generation. To support this, China National Chemicals has focused on improving staff operating skills through training and standardized management practices. As a result, operational efficiency has greatly improved.
In the past six months, the 600,000-ton methanol plant achieved a 150-day record, while the Fudao-II plant completed its second 100-day continuous operation last year. These achievements reflect the company’s commitment to sustainable development.
Last year, CNOOC invested nearly 30 million yuan to build an 8,000-cubic-meter emergency sewage pool, which helps manage large volumes of unexpected wastewater and ensures zero pollution in discharge. Due to low daily emissions, the sewage treatment system operates at full capacity, further enhancing environmental performance.
The Eastern 1-1 gas field is one of the largest identified and developed gas reserves in China, known for its high carbon dioxide content. To address this, the company has invested in environmental projects. In 2006, they launched a food-grade carbon dioxide project with an annual output of 30,000 tons, capable of recycling 24 million standard cubic meters of exhaust gas each year. Additionally, a project to produce 3,600 tons of biodegradable plastics using carbon dioxide started last year. This technology pilot project aims to promote the large-scale utilization of carbon dioxide and is expected to be completed by June 2008.
CNOOC also pays attention to small energy-saving points, such as minimizing unnecessary lighting in the facility area. During summer, lighting schedules are adjusted according to daylight changes, and air conditioning is set to 26 degrees Celsius or higher. Office spaces make full use of natural light throughout the day.
Yang Yexin, CEO of China Shipping Chemical Co., Ltd., emphasized that while developing industries is important for economic growth, the company would rather avoid projects that waste resources or harm the environment.
China Shipping Chemicals is one of the key enterprises located in Dongfang Chemical City. Currently, the company operates three chemical plants at its Hainan base: the 520,000-ton Phase I Fuzhou urea plant, the 800,000-ton Phase II Fudao urea plant, and the 60-million-ton methanol facility. These facilities exemplify the company's ongoing efforts to balance industrial growth with environmental responsibility.
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