• +86 15570717995
  • chenwayprocess@gmail.com
  • Tianyuan District, Zhoujiu City, Hunan Province, China
Wet sulfuric acid production technology
Technical developments

Wet sulfuric acid production technology

Hunan Chenwei Environmental Engineering Co., Ltd.(Chenwei, Hunan Province) has its background in Changsha Chemical and Environmental Equipment Factory. In 2005, the company completed the restructuring process. Today, it is a specialized general contracting company accredited by the former Ministry of Environment and Natural Resources of the People's Republic of China, which is engaged in integrated industrial emission problem solving and chemical environmental equipment manufacturing.
The main strategic direction of the company's development is resource utilization of industrial exhaust gases. The company focuses its main efforts on industrialization of wet sulfuric acid production technology by WSA-method, in parallel covering such areas as desulfurization and denitrification of industrial flue gases, treatment of highly concentrated organic wastewater, as well as resource utilization of hazardous waste. The company offers comprehensive EPC general contracting services (design, equipment supply, installation, commissioning) with a full cycle of support - from development of design documentation and equipment manufacturing to installation, commissioning and after-sales maintenance.

One of the leading companies in the WSA wet sulfuric acid production industry in the PRC. Its key product, WSA-Ⅲ type wet sulfuric acid production equipment, has achieved a breakthrough in industrial validation. The self-developed high-efficient low-temperature WSA-method sulfuric acid production system has a transformation degree of 99.8%. It is capable of processing industrial exhaust gases with sulfur content from 0.5% to 15%, the maximum daily throughput capacity of one set of equipment is 300,000 m³/h. The concentration of the finished product (sulfuric acid) is stable above 98%, and the concentration of harmful substances in the purified exhaust gas does not exceed 50 mg/Nm³, which significantly exceeds the state emission standards.

At present, the company's business covers many industries, including non-ferrous metallurgy, carbon chemistry, petrochemistry, steel and coke production, and fine chemicals. Domestically, the company has implemented more than 60 general contracting projects of wet sulfuric acid production by WSA method (turnkey), the cumulative capacity of industrial exhaust gas treatment has exceeded 50 million m³/h, the annual volume of recovered sulfuric acid has reached more than 3 million tons, and the reduction of sulfur dioxide emission has reached more than 2 million tons. In the external market, the company expanded its presence in countries such as Zambia, Peru, Kazakhstan and others.

For many consecutive years, the company has been awarded titles such as «State High-tech Enterprise», «Hunan medium and small enterprise with specialized, precise, unique and new profile», «Enterprise with AAA credit rating» and «Key Enterprise of Hunan Provincial Environmental Industry».
The company is headquartered in Zhoujiu Hi-Tech Park, located in the core of the Changsha-Zhoujiu-Tanjiu agglomeration. It has convenient transportation and perfect production infrastructure, providing the company with excellent geographical advantages for business expansion and technological innovation.