Ceramic Filters

High-temperature dust removal from particulate-laden exhaust gases offers compelling advantages both economically and ecologically. Unlike synthetic fabric filters, which are limited to around 260 °C, ceramic filter elements allow filtration up to 1000 °C—eliminating the need for costly gas cooling.



Today, hot-gas filtration extends beyond air pollution control. By reclaiming valuable particulates from exhaust streams and reintegrating them into production processes, operators improve plant efficiency while conserving raw materials. Additionally, high-temperature dust removal enables effective heat recovery and even power generation.

Catalytically coated hot-gas filter cartridges provide a multifunctional solution for complex gas treatment. These filters tackle three pollutants simultaneously—dust (DeDust), sulfur compounds (DeSOx), and nitrogen oxides (DeNOx)—within a single step. The benefits include:

• Fewer interfaces
• Smaller plant footprint
• Significant CAPEX and OPEX savings
  

Textile filters serve smaller installations adequately, but ceramic filters outperform across broader temperature ranges—making them ideal for medium to large-scale systems. With ceramic filter cartridges, process temperatures up to 1000 °C are easily accommodated without altering downstream filtration stages.



Temperature ranges:

• Non-catalytic : 250–1,000 °C
• Catalytic-coated : 250–420 °C

Adaptation to evolving system requirements is straightforward. By increasing filter surface area with longer cartridges—up to 4 meters—existing setups can be upgraded with minimal structural changes (provided tank height allows). If ceiling constraints exist, the patented Screw-and-Glue® system enables on-site assembly from 1-meter segments, ensuring flexibility and cost-effective installation.

Compared with SCR+bag filter, CCF as following advantages：

• Low Energy Use: effective DeNOx and dust removal at 170–350 °C, reducing costs.
• Low-Temp Advantage: less gas expansion, lower equipment cost, competitive edge.
• Extended Catalyst Life: fiber filters protect and prolong catalyst use.
• Acid Removal Combo: reduces ammonium salts and protects filters with dry powder.
• Dual-Function Catalyst: removes NOx and dioxins, prevents dioxin reformation (de novo).