Recently, the State Ministry released the 2017 list of China's first demonstration of green manufacturing system, Wanhua chemical (Ningbo) Co. Ltd. (hereinafter referred to as the "Ningbo Wanhua") was included in the first national green plant.

It is understood that in "made in China 2025", the state will focus on building green plants, and put forward the goal of building thousands of green demonstration plants in 2020. Building green factory, as the key link of building green manufacturing system in China, is the key task of implementing green manufacturing engineering.

Building a green factory and developing a circular economy

Wanhua made remarkable achievements

作为重要临港制造业企业，万华宁波主要从事异氰酸酯产品、芳香多胺系列产品的研究开发、生产和销售，公司的MDI开发及产业项目被评为“国家科技进步一等奖”，这使中国成为继德、美、日之后第4个拥有该技术的国家。

At present, the company has become the world's largest and the most reasonable, lowest cost and quality leading MDI manufacturing base, which is the development paradigm of China's national industry.

All along, Ningbo Wanhua has made remarkable achievements in the development of circular economy and build a green factory. Adhering to the enterprise from the beginning of the design of the circular economy to determine the theme, Ningbo Wanhua in production process, optimize the process, promote the reduction and recycling of production waste, improve the depth of the use of resources and energy, and strive to "eat dry pressing to do".

Building energy management center

Effectively improving the utilization of energy

Wanhua chlor alkali by-product hydrogen as raw materials by Ningbo Wanhua steam boiler, process transformation, become the company of aniline production of raw materials, the company can reduce the annual energy consumption of 50 thousand tons of standard coal. The company also optimizes the use of the steam in depth and cascade, and the waste heat recovery and utilization, saving the product cost by nearly 100 million yuan per year.

Through the establishment of energy management center, Ningbo Wanhua of scientific management of energy scheduling optimization, from 2006 to 2016 in ten years, energy consumption decreased by 60%, effectively improve the utilization efficiency of energy.

In waste treatment, Ningbo Wanhua do fugitive emissions to zero, organized discharge 100% qualified, waste emissions continued to decrease to zero. By reducing and controlling waste production and constantly changing waste into treasure.

A perfect industrial chain of circular economy

To become a sample of the whole province

Wanhua Ningbo focus on the development of circular economy, establish the Wanhua Ningbo circular economy industrial park, the park has Hanwha chemical, Linde, and more than 10 large-scale chlor alkali enterprises, through the introduction of upstream and downstream projects and supporting enterprises, established a relatively perfect circular economy industry chain, forming a "benign ring cycle waste resources renewable resources".

This circular economy model saves the business cost of the enterprise, and reduces the pollutant discharge effectively. The park has won the title of "major industrial circular economy demonstration project", which has become a model for the development of green circular economy in the whole province.

Independent research and development, scientific and technological innovation

192 items of authorized patent have been obtained

The construction of circular economy can not be separated from the contribution of scientific and technological innovation.

Ningbo Wanhua in the use of independent research and development, the world's advanced level of hydrogen chloride oxidation technology, MDI by-product hydrogen chloride into chlorine, for the enterprises in the park can be used for enterprises to save 30 thousand tons of standard coal consumption per year. The company also with independent research and development of waste water reuse technology, MDI byproduct waste brine re used in chlor alkali plant, each year for the enterprise to save 75 thousand tons of raw salt, the annual cost savings 12 million yuan. At the same time, the company also uses ultrafiltration and reverse osmosis technology for wastewater treatment plant. After the production of wastewater treatment, it turns into a qualified circular industrial water, which is used for the park and saves water cost.

It is reported that through scientific and technological innovation, the company has applied for 311 patents at home and abroad, including 307 patents at home and abroad, and 192 authorized patents have been obtained.