Project Background: Tackling Complex Emissions from Gasification Coal Grinding Chemical Waste Gas Treatment
In chemical new materials production, coal slurry preparation is a critical front-end process. However, the intense collision and grinding of raw coal with water inside mills—which raises temperatures to 48-50°C—volatilizes a complex mixture of harmful gases. A leading chemical new materials manufacturer faced a significant environmental challenge: exhaust from its coal grinding building contained coal dust particulate, Hydrogen Sulfide (H₂S), Ammonia (NH₃), Methanol, and trace VOCs, creating pungent odors. The original direct venting method failed to meet increasingly stringent national and local emission standards, posing an ongoing concern for both employee working conditions and community impact.Chemical Waste Gas Treatment
The exhaust parameters were particularly demanding: 24/7 continuous operation, a total flow rate as high as 57,000 m³/h, wide temperature fluctuations (30-80°C), and containing corrosive and odorous compounds. The client urgently needed an efficient, stable, and reliable “turnkey” exhaust gas treatment solution.Chemical Waste Gas Treatment
Yuanfang Solution: A Three-Stage Purification Process for Ultra-Low Emissions & Stable Operation
Henan Yuanfang Environmental Protection Equipment Co., Ltd., as a professional “Integrated Industrial Air Pollution Control Solution Provider”, leveraged its deep expertise in chemical exhaust treatment to design and successfully deliver a customized “Pre-Scrubbing + Deep Demisting + Activated Carbon Adsorption” combined process system.Chemical Waste Gas Treatment
Our engineering team precisely addressed the three core needs: “dust removal, acid/alkali absorption, and odor control”, ensuring the system’s exceptional performance and operational economy when handling high-volume, multi-component exhaust streams.Chemical Waste Gas Treatment
Chemical Waste Gas Treatment Core Process Breakdown:
-
Primary Cyclone Scrubber (Pretreatment Stage)
-
Function: Serves as the first line of defense, specifically targeting water-soluble pollutants (e.g., ammonia, some methanol) and hydrogen sulfide for chemical absorption, while efficiently removing coal dust particulate.
-
Technical Highlight: The cyclone tray tower design maximizes gas-liquid contact efficiency, providing significant cooling to create ideal conditions for downstream stages while removing pollutants.
-
-
Secondary Demisting Scrubber (Safeguard Stage)
-
Function: Thoroughly removes entrained fine mist droplets from the gas stream, ensuring a substantial reduction in humidity.
-
Client Value: This stage is critical to effectively protect the downstream activated carbon adsorbent from deactivation due to moisture, thereby significantly extending carbon service life and reducing overall operational maintenance costs.
-
-
Tertiary Activated Carbon Adsorption System (Deep Polishing Stage)
-
Function: As the final purification unit, it utilizes high-performance activated carbon with its vast surface area to powerfully adsorb residual trace VOCs, odor molecules, and other organic pollutants from the pre-treated gas.
-
Engineering Detail: The system is equipped with bypass lines and manual isolation valves, allowing for safe and convenient carbon inspection and replacement without interrupting the main process, ensuring production continuity.
-
Chemical Waste Gas Treatment Project Outcome & Client Value: From Compliance Burden to Environmental Asset
The system is now successfully operational, delivering results beyond expectations:
-
Stable Compliance, Peace of Mind: Exhaust emissions consistently meet and exceed requirements of the “Integrated Emission Standard of Air Pollutants” (GB16297-1996) and local regulations, facilitating smooth environmental acceptance for the client.
-
Improved Environment, Social Responsibility: Pungent odors inside the workshop and around the plant boundary have been completely eliminated, fundamentally improving the working environment for employees and significantly enhancing the company’s green image and social responsibility.
-
Reliable Design, Operational Economy: The system, designed for a high flow rate of 57,000 m³/h with sufficient margin, uses high-quality corrosion-resistant materials (e.g., PP/FRP) to handle corrosive media. This ensures long-term, continuous, and stable operation (24/7), with simple maintenance and optimal lifecycle cost.
Why Choose Yuanfang EP as Your Air Pollution Control Partner?Chemical Waste Gas Treatment
The success of this coal grinding exhaust treatment project reaffirms Yuanfang EP’s professional capability in solving complex industrial air pollution challenges:
-
Process-Aware Engineering Design: We deeply understand the process characteristics of the chemical, coal chemical, and new materials industries. Our designs target the pollution source directly, offering custom, precise, and efficient solutions.
-
End-to-End Project Execution: We provide EPC (Engineering, Procurement, Construction) services encompassing diagnosis, design, equipment manufacturing (in-house core scrubbers & adsorbers), installation, and commissioning, ensuring seamless project integration and single-point responsibility.
-
Results-Driven Commitment: We promise not just equipment delivery, but the ultimate outcome of “compliant emissions, stable operation, and client satisfaction.”
If you are seeking a reliable solution for process exhaust (VOCs, acid gases, odors, dust) treatment in the chemical, new materials, coal chemical, or pharmaceutical industries, contact us today.
Yuanfang EP — Specializing in Industrial Air Pollution Control. Making Every Breath Cleaner. Chemical Waste Gas Treatment