Abatement of Vapour-Phase VOCs
ECT2 has developed advanced technology for the clean, safe, efficient, and cost-effective abatement of vapour-phase volatile organic compounds (VOCs), one of the primary elements of air pollution generated by the chemical process industries (CPI), including chemical plants, refineries, and factories that use toxic chemicals in the course of their production processes. The traditional methods of VOC abatement are thermal oxidation or adsorption via granular activated carbon (GAC). ECT2 has developed a patent-protected adsorption technology that allows for more efficient, compact systems that can run longer than the competition.
Our lightweight vapour phase VOC abatement solutions incorporate our patent-protected polymeric synthetic resin technology and feature a modular design, a small footprint, and ease of installation and access. These systems offer continuous operation to accommodate processing requirements, and media capacity is renewable in place by regeneration, supporting sustainability programs with options for product recovery, energy generation, or both. Predictable, repeatable performance can be leveraged to streamline compliance management programs and reduce compliance effort over time. Low first cost and very low operating cost provide rapid investment return and reduced lifecycle cost.
ECT2’s fixed-bed systems are compact, lightweight, easily installed, self-contained vapour treatment systems for continuous or intermittent treatment of process vents or other lower-flow environmental applications with high-concentration influent conditions. They use a polymeric medium that selectively removes organics and has a high loading capacity, going years, rather than weeks or months, between media changeout and overcoming other concerns with GAC, such as O&M cost, compliance, process disruption, legacy liabilities, and sustainability. These adsorptive systems are inherently safer than thermal oxidisers and remove the need for potential secondary treatment.
ECT2’s high-flow solutions are designed to operate under continuous service conditions for the removal, destruction, or recovery of contaminants such as organics, aromatics, and fragrances from facility air discharges, where extensive removal and energy efficiency are a must. These continuous moving bed (CMB) air treatment systems can be configured to handle flows of 100 000 SCFM or more, with a neutral energy footprint. The systems typically include a fluid bed adsorber to continuously capture the VOCs from plant emissions, a fluid bed desorber to simultaneously renew the media capacity, and a small thermal oxidiser to destroy the organic vapours captured during treatment. Inherently simple, highly reliable, and requiring very little routine maintenance and associated cost, these systems are an integral part of an overall effort to improve reliability, reduce compliance costs, and improve margins.
ECT2’s CMB systems represent a new approach to VOC abatement, offering an alternative to regenerative thermal oxidiser (RTO) units. Complexity and fuel and electricity requirements not only make RTO units unreliable and costly to operate but also mean they generate CO2 emissions of their own. ECT2’s CMB systems concentrate captured VOCs by up to 90-fold, resulting in concentrations that are sufficient to sustain oxidiser operations without supplemental fuel. This combination of oxidiser optimisation and elimination of the requirement for supplemental fuel reduces CO2 emissions related to air compliance to nearly zero and reduces energy costs to a fraction of what was previously required.
OpportunityIn 2018 Defence completed a detailed environmental site investigation incorporating RAAF Base Tindal and private land in the vicinity of the Base. The investigation identiﬁed that PFAS contamination had entered groundwater and migrated off-site [...]
Poster presented at RPIC 2019 that shows the installation, startup and operation of the first regenerable resin system for PFAS removal, implemented at the former US Pease AFB.