Dioxin & Furan Filters for Crematoriums, Incinerations & Metals Processing

The GORE® REMEDIA® Catalytic Filtration System destroys up to 99% of gaseous dioxins and furans, provide dust control, reduce emissions and work with existing bag- houses in crematoriums, incineration plants, and metals processing plants.

Contact Us

North America

+1 800 437 5427

Australia

61 2 9473 6800

中国

8621 6247 1999

Germany

49 89 4612 0

India

+ 91-22-67687000

Italy

39 045 6209 250

Japan

81-3-6746-2572

Korea

82 2 393 3411

Netherlands

31 135074700

Scandinavia

46 31 7067800

Singapore

65 6 733 2882

South America

55 11 5502 7800

South Africa

27 11 894 2248

Taiwan

886 2 8771 7799

United Kingdom

44 1506 460123

Malaysia

60 603 732 3775

Resource Library

Dioxin & Furan Filters FAQ

Particle and Gas Filtration for Industrial Processes & Bag Houses

See answers to frequently asked questions about Catalytic Filtration Systems.

All Resources For Dioxin & Furan Filters for Crematoriums, Incinerations & Metals Processing

Overview

The Safest and Simplest Technology for Dioxin Control

W. L. Gore & Associates, the leader in filtration technology, brings you a revolutionary way to meet dioxin and furan emission regulations. You can destroy gaseous dioxins and furans simply by installing new filters in your baghouse. This innovative system is effective and cost-efficient — without requiring process changes or adding costly new equipment. Safer for the environment, safer for employees, simpler to use, our REMEDIA® D/F catalytic filter system is the safest and simplest way to destroy dioxin.

Meeting the Dioxin Challenge

The threat of dioxins is drawing increasing attention around the world. Governments are phasing in tougher dioxin restrictions, and reports about dioxin levels in food products have generated widespread concern. Issues related to dioxin emissions and disposal are moving up the environmental agenda.With heightened public awareness, stricter regulations, and potential penalties for non-compliance, it's more important than ever to avoid the risks associated with inadequate dioxin control.

Now, a safe and simple solution is available. Gore's REMEDIA D/F catalytic filter system helps you efficiently meet dioxin emission requirements without the burden of costly new equipment. It offers a broad range of benefits unmatched by any other dioxin control technology.

Filter Diagram

Combining the principles of surface filtration and catalysis.

Eliminating Dioxin with Remedia D/F

Combining the principles of surface filtration and catalysis, the REMEDIA D/F catalytic filter system is a unique dioxin control alternative that works in your existing baghouse to destroy gaseous dioxins and furans to levels far below regulatory limits — safely, economically, and with minimal maintenance.

The REMEDIA D/F catalytic filter system consists of GORE-TEX® membrane, an expanded polytetrafluoroethylene (ePTFE), laminated to a catalytic felt substrate. A leading and proven filter technology, GORE-TEX membrane is widely used to control and collect particulate matter in industrial applications.

Using a patented process, catalysts, consistently proven to destroy gaseous dioxins, are combined with PTFE to form a coherent catalytic fiber. The resulting catalyst/ePTFE fiber is needlepunched into a RASTEX® ePTFE scrim to create the felt substrate.

Here's how the REMEDIA D/F catalytic filter system works: the GORE-TEX membrane captures fine particulate on the surface of the filter. As the filter is cleaned, solids are released from the surface and collected in the bottom of the baghouse hopper. The gaseous dioxins and furans pass through the GORE-TEX membrane into the catalytic felt. The catalyst instantly reacts with the dioxin and furan molecules to convert them into insignificant amounts of CO2, H2O and HCl.

Making the move to single-step destruction of gaseous dioxins and removal of particulates is easy. Simply replace your existing filter bags with REMEDIA D/F catalytic filters. No process changes are required — no additional equipment, procedures or worker training are needed. Since the REMEDIA D/F catalytic filter system is a passive control technology that operates continuously, it offers reliable, consistent performance unequaled by any other alternative. The REMEDIA D/F catalytic filter system also offers low maintenance and better filter cake management.

The REMEDIA D/F Catalytic Filter System works in your existing baghouse, providing dioxin destruction without process modifications or changes to your physical plant.

Process Diagram

Features & Benefits

REMEDIA Catalytic Filter System is the only dioxin abatement technology with all of the following benefits:

Benefit Sorbent Injection (e.g. carbon) deDIOX Catalytic Reactor (e.g. SCR) Carbon Bed REMEDIA Catalytic Filters

Reliable and Consistent Operation:

-

Meets Dioxin Emission Regulations

X

X

X

X

-

Passive System - No Maintenance

.

X

.

X

Cost-Effective:

-

Lowest Total Cost of Ownership

.

.

.

X

-

Provides Dust Control

.

.

.

X

-

Lower Disposal Costs

.

X

.

X

Easy to Adopt and Use:

-

No Need to Purchase New Equipment

.

.

.

X

-

Uses Existing Facility Footprint

.

.

.

X

-

Reduces Corrosion

.

X

.

X

Environmentally Friendly:

-

Destroys Gaseous Dioxin

.

X

.

X

-

Reduces Total Dioxin Emissions

.

X

.

X

-

Safer for Employees

.

X

.

X

The REMEDIA D/F catalytic filter system offers substantial benefits over sorbent injection systems and other dioxin control technologies.

Destroys dioxins. Unlike sorbent based systems such as powdered activated carbon (PAC), the REMEDIA Catalytic Filter System does not merely move dioxin and furan molecules from the gas stream to the solid residue stream, it destroys them. REMEDIA Catalytic Filters use only the highest-performing, state-of-the-art catalysts to assure long life and levels of destruction that in many cases exceed 99 percent.

Lower disposal costs. With no dioxin contaminated sorbents to dispose of, the REMEDIA Catalytic Filter System minimizes the cost of hazardous waste disposal. It addresses concerns about existing or future landfill restrictions on the amount and toxicity of sorbent levels in fly ash. Reducing hazardous waste disposal with the REMEDIA Catalytic Filter System also demonstrates your company's commitment to environmental protection.

Meets Dioxin Emission Regulations. The REMEDIA Catalytic Filter System has been extensively proven in a wide variety of applications around the world. Thousands of analytical tests have shown that the REMEDIA Catalytic Filter System meets even the most stringent environmental regulations.

Passive System - No Maintenance. The REMEDIA Catalytic Filter System is completely passive in operation, continuously destroying gaseous dioxins and furans while in operation. With no additional equipment to operate, ongoing maintenance demands are kept to a minimum.

Lowest Total Cost of Ownership. By combining dioxin destruction and particulate control into one passive filter, the REMEDIA Catalytic Filter System provides the lowest total cost of ownership. Made of catalyst/PTFE fibers, REMEDIA catalytic filters have high mechanical strength and durability coupled with a proven long life catalyst, effectively assuring savings well into the future. Because it doesn't add to your operating costs, there are no hidden costs after the system is purchased.

Provides Dust Control. The GORE-TEX membrane's microporous structure filters dust, even submicron particles. By capturing fine particles it reduces total emissions of toxins, such as trace heavy metals to the atmosphere.

Lower Disposal Costs. With no dioxin contaminated sorbents to dispose of, the REMEDIA Catalytic Filter System minimizes the cost of hazardous waste disposal. It addresses concerns about existing or future landfill restrictions on the amount and toxicity of sorbent levels in fly ash. Reducing hazardous waste disposal with the REMEDIA Catalytic Filter System also demonstrates your company's commitment to environmental protection.

No Need to Purchase New Equipment. No new capital equipment is required. REMEDIA Catalytic Filters simply replace your current filters in your current baghouse so you can optimize your existing assets. In addition, no new equipment means there is no need to change your current process or add new maintenance requirements.

Uses Existing Facility Footprint. With no new equipment to buy there are also no new demands on your existing facility footprint. Injection equipment, storage silos, catalytic towers, heat exchangers, etc., all require additional space and related construction. By utilizing your existing baghouse, the REMEDIA Catalytic Filter System makes compliance easy and affordable.

Reduces Corrosion. The lower operating temperatures required with other dioxin control systems can cause corrosion in your baghouse. Since the REMEDIA Catalytic Filter System works at higher temperatures, there is less chance of corrosion.

Safer for Employees. Carbon-based systems create a risk of baghouse fires. Hazardous carbon dust also puts operators at risk, especially when it is contaminated with dioxin. With the REMEDIA Catalytic Filter System, avoiding carbon eliminates the risk of fires and minimizes potential health risks.

The REMEDIA D/F catalytic filter system provides an unmatched combination of benefits and value:

Cost Graph
A Tested and Proven Technology

Since 1995, Gore has performed more than 200 polychlorinated dibenzo-dioxin/furan (PCDD/F) measurements in combustion facilities around the world. In addition, more than 700 REMEDIA D/F catalytic filter samples have been tested in more than 70 facilities, including municipal waste incinerators, as well as crematoria, pyrometallurgical plants, and cement kilns burning hazardous waste.

Specifically, tests of the REMEDIA D/F catalytic filter system at a full-scale municipal waste combustor burning 200 tons of waste per day yielded dioxin emissions well below the required level of 0.1 ng (TEQ)/Nm3 over a three-year period. Raw gas concentrations of dioxins and furans were measured to be between 2.9 and 5.9 ng (TEQ)/Nm3, with subsequent emission concentrations as low as 0.002-0.04 ng (TEQ)/Nm3—substantially below the required 0.1 ng (TEQ)/Nm3 level.

Field tests over a long period of time confirm that the REMEDIA D/F Catalytic Filter System efficiently controls dioxins and furans below regulatory requirements.

Incinerator Chart

Furthermore, analysis revealed that the concentrations of dioxin in the fly ash using the REMEDIA D/F catalytic filter system were significantly lower than those achievable using a PAC system. The results are impressive. Total dioxin and furan emissions to the environment — including release of both gas and solids from the baghouse — were reduced more than 90% compared to PAC systems.

Emissions data from a variety of full scale applications confirm that the REMEDIA D/F catalytic filter system controls dioxins and furans below regulatory requirements.

Stack Emissions Graph

These results are consistent with numerous tests performed in both full-scale systems and pilot test programs. Tests were conducted at temperatures ranging from 180º to 250º C and at filtration velocities varying from 0.8 m/minute to 1.4 m/minute. Within these ranges, the REMEDIA D/F catalytic filter system is designed to perform with the same efficiency and reduce emissions of dioxins/furans to below 0.1 ng (TEQ)/Nm3.

At facilities operating under good combustion practices — a typical inlet dioxin concentration below 10 ng (TEQ)/Nm3  —  the REMEDIA D/F catalytic filter system is designed to meet and exceed dioxin regulations.

Gore: A Trusted Name

W. L. Gore & Associates is a worldwide leader in providing high technology solutions for demanding electronic, industrial, medical and fabric applications. GORE is a global manufacturer with worldwide sales and service. Our innovation and technical accomplishment in the application and use of fluoropolymers, particularly PTFE, has resulted in the development of thousands of diverse products.

As the pioneer in the use of expanded PTFE membrane technology for filtration, GORE benefits from more than 25 years of experience in particulate control. Expanded PTFE's inherent strength, chemical inertness, thermal stability and microporosity make it a versatile, highly efficient filter media. From vents and adsorbent modules to cartridges and filter bags, whether capturing contaminants in computer disk drives or industrial smokestacks, customers rely on the consistent performance of GORE filtration and separation products.

In order to keep up with environmental regulations and evolving customers' needs, GORE has pushed the frontiers of traditional filtration and separation technology. Catalytic processes yield higher purity output with less by-products and reduced environmental hazards.The microporosity, cleanability, and non-particulating properties of PTFE, combined with the chemically reactive properties of catalysts, provide particular value in applications like fuel cells and industrial filtration.

Now the REMEDIA D/F catalytic filter system, the first in a series of catalytic filtration products, is transforming the future of filtration and toxic emissions control.

Technical Specifications

REMEDIA D/F CATALYTIC FILTER SYSTEM*
Fiber content Staple — GORE ePTFE
Expanded PTFE/catalyst
Scrim — RASTEX
Expanded PTFE fiber
Felt construction Supported needlefelt
Membrane surface GORE ePTFE
Continuous operating temperature 500ºF / 260ºC (maximum)
Surge temperature 525ºF / 274ºC (maximum)
Acid resistance Excellent
Alkali resistance Excellent

*All specifications are subject to change without notice

Use in Crematoriums

Crematoriums often face the same stringent dioxin regulations as municipal waste incinerators. The vast experience of the GORE REMEDIA Catalytic Filter System in waste incineration has translated directly to success in over 15 crematorium applications throughout Europe. Performance, as illustrated in the graph, has become routine.

Crematorium App Graph

The GORE REMEDIA Catalytic Filter System is the logical choice for crematoriums small in size or limited in space. With the installation of new GORE REMEDIA catalytic filters, applications literally become compliant overnight. With no need for expensive new construction or equipment the financial burden of compliance is minimized.

Use in Metals Processing

GORE has the applications experience to effectively evaluate your process and work with you to commission a system that meets your needs in the most cost-effective manner.

When a leading aluminum recycling company needed dioxin control for a key process unit, they selected the GORE REMEDIA Catalytic Filter System for easy, reliable, and cost-effective operation. The system has been destroying dioxins since early 2000 and has experienced an aluminum production level equivalent to 90,000 tons/year.

Use in Incineration

Since 1995, Gore has performed more than 200 polychlorinated dibenzo-dioxin/furan (PCDD/F) measurements in combustion facilities around the world. In addition, more than 700 GORE REMEDIA Catalytic Filter samples have been tested in more than 70 facilities, including municipal waste incinerators, crematoriums, pyrometallurgical plants, and cement kilns burning hazardous waste.

In a variety of full scale installations, the GORE REMEDIA Catalytic Filter System yielded dioxin emissions at levels from .012 to .065 ng (TEQ)/Nm3 - well below the standard guideline of 0.1 ng (TEQ)/Nm3. Furthermore, analysis revealed that the concentrations of dioxin in the fly ash using the GORE REMEDIA Catalytic Filter System were significantly lower than those achievable using a powder activated carbon (PAC) system.

The results are impressive.
Waste Incinerators

Total dioxin and furan emissions to the environment - including release of both gas and solids from the baghouse - were reduced more than 90% compared to PAC systems.

These results are consistent with numerous tests performed in both full-scale systems and pilot test programs. Tests were conducted at temperatures ranging from 180° to 260°C and at filtration velocities varying from 0.8 m/minute to 1.4 m/minute. Within these ranges, the GORE REMEDIA Catalytic Filter System is designed to perform with the same efficiency and reduce emissions of dioxins/furans to below 0.1 ng (TEQ)/Nm3.

At facilities operating under good combustion practices - a typical inlet dioxin concentration below 10 ng (TEQ)/Nm3  - the GORE REMEDIA Catalytic Filter System is designed to meet and exceed dioxin regulations.

Waste Incinerators

Resources

FOR INDUSTRIAL USE ONLY

Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations