FGD Plant Project In Liaoning

This project is designed for flue gas desulfurization(FGD). In order to further improve environmental protection and reduce sulfur oxide emissions, Dalian Jinyuan Petrochemical Co., Ltd. has introduced a 40000 ton/year sulfur recovery unit tail gas treatment unit from Ruichang in its 60 ton/year chemical light hydrocarbon upgrading project. This FGD system adopts a semi dry flue gas desulfurization process aimed at efficiently removing sulfur dioxide (SO2) and dust from flue gas, meeting strict emission requirements.

The semi dry flue gas desulfurization process adopted in this project utilizes acid-base reactions and gas-solid mass transfer in a circulating fluidized bed to absorb the acidic gas SO ₂ in the flue gas under the activation and humidification effect of water. The desulfurizer is calcium hydroxide powder, which is circulated repeatedly between the desulfurization tower and the dust collector to fully contact and react with SO ₂ in the flue gas, thereby achieving efficient desulfurization. The exhaust temperature is 80 ℃, with no white smoke or corrosion occurring, and no wastewater generated, avoiding secondary pollution.

Equipment and Contracting Scope

The design, manufacturing, and installation of this desulfurization unit are all the responsibility of Ruichang Company, covering equipment, pipelines, electrical, instrumentation, insulation, corrosion prevention, protection, and other aspects of the entire desulfurization boundary area. Ruichang Company is also responsible for system debugging and training of operators.

Construction period

The project construction period is approximately 180 days.

Semi-dry flue gas desulfurization technology

Technical principles

The semi-dry flue gas desulfurization technology mainly uses calcium hydroxide (Ca (OH) ₂) powder as a desulfurizer to remove SO ₂ from flue gas through the following reaction:

Ca(OH)₂+SO₂→CaSO₃+H2OCa(OH)₂+SO ₂→CaSO₃+H₂O

In practical operation, desulfurizer and flue gas are fully mixed and reacted in a circulating fluidized bed. The activation and humidification effect of water enhances the reaction efficiency and improves the desulfurization efficiency. The exhaust temperature of the processed flue gas is 80 ℃, with no white smoke or corrosion phenomenon.

Technological advantages

• Efficient desulfurization: With high desulfurization efficiency, it can effectively reduce SO ₂ and dust emissions, meeting strict environmental requirements.
• No secondary pollution: No wastewater is generated, avoiding the problem of secondary pollution.
• Stable operation: The process runs stably, is easy to maintain, and has strong adaptability.
• Economy: Low investment and operating costs, with significant economic benefits.

FGD system market analysis

With the increasingly strict environmental regulations, industrial enterprises have a growing demand for flue gas desulfurization technology. Especially in industries such as chemical, metallurgical, and power, flue gas desulfurization technology has become an important means of environmental governance. The semi dry flue gas desulfurization technology has broad application prospects in the market due to its high efficiency, stability, and economic characteristics.

• Policy promotion: Governments around the world continue to strengthen environmental regulations and require industrial enterprises to reduce pollutant emissions, which has brought huge development space to the flue gas desulfurization market.
• Technological progress: With the continuous advancement of technology, the efficiency and economy of flue gas desulfurization equipment continue to improve, further driving market growth.
• Industry demand: The increasing demand for flue gas desulfurization technology in industries such as chemical, metallurgical, and power provides strong impetus for market development.

At present, the competition in the flue gas desulfurization market is fierce, and various technical solutions are emerging one after another. In contrast, the semi dry flue gas desulfurization technology has strong competitiveness in the market due to its high efficiency, economy, and environmental protection. In the future, through continuous improvement of technological level and service quality, semi dry flue gas desulfurization technology will occupy a larger market share.

The tail gas treatment project of Dalian Jinyuan Petrochemical Co., Ltd. adopts advanced semi dry flue gas desulfurization technology, successfully achieving efficient desulfurization and meeting strict environmental protection requirements. The successful implementation of this project not only brings significant environmental benefits to the enterprise, but also provides valuable experience for the application and promotion of flue gas desulfurization technology. With the continuous growth of market demand, semi dry flue gas desulfurization technology will usher in a broader development prospect. Ruichang Company has accumulated rich experience through this project and will continue to be committed to technological innovation and service improvement in the future, providing high-quality flue gas desulfurization solutions for more enterprises.