• Evaluation of existing APC (air pollution control) equipment for the purpose of:
  • Improving energy efficiency and or providing secondary heat recovery
  • Improved capacity through put
  • Improving performance of an existing system
  • Secondary Heat Recovery (SHR)
• On line monitoring of APC systems for maintenance assistance
• Controls upgrade for your existing APC system

Field Services

Installation of APC equipment from the mechanical assembly to the complete installation from foundation to commissioning – ‘turnkey installation’

• Maintenance of existing APC equipment
  • Service contracts for routine PM inspections
  • On call response for service on most Oxidizers
• RTO heat recovery upgrade to lower energy use and or increase capacity
• Catalyst replacement and upgrade to increase VOC reduction
• Replacement of any coalescing fiber bed filters

Equipment Installation

Installation of Air Pollution Control Equipment is a critical component of a successful project. To insure that the equipment is installed properly as well as in the most cost effective manner, some companies elect to package the equipment purchase with the installation and startup in what is referred to as a “Turnkey” System.

Asphalt Products

Illustration of Coalescing Fiberbed Filter Mist Collector preceded by drum prefilter system
Illustration of Coalescing Fiberbed Filter Mist Collector preceded by drum prefilter system
Air Clear has extensive experience in controlling the emissions from Saturators; Coaters; Tank Vents; Loading Stations. We have Air Pollution Control Systems in operation on many of the major Asphalt Roofing Manufacturers production lines..
Asphalt process exhaust contains a variety of particle sizes ranging from submicron and larger, and the objective is to control the opacity and associated odor resulting from the particulate emissions.
In cases where VOC control is not required, Air Clear recommends the use of an Air Clear Coalescing Fiberbed Filter Mist Collector System to control opacity. Air Clear systems use fiberbed diffusion filters to collect the submicron particulate that is the cause of opacity. Fiberbed filters are designed to collect both solid and liquid particulate, and have been used successfully for many years to control asphalt manufacturing emissions effectively and economically.
Air Clear Pocket Prefilters. These Prefilters are used to collect tars and solid particulate prior to entering the main coalescing fiberbed filter system
Air Clear Pocket Prefilters. These Prefilters are used to collect tars and solid particulate prior to entering the main coalescing fiberbed filter system
In some cases an Indexing Pre-Filter using a durable poly pre-filter material is offered to remove stone dust particulate from the exhaust to protect the main filters and extend their life. As the filter media gets dirty, the pressure drop increases. At a fixed point the drive motor indexes pulling off the dirty media and replacing it with clean media.
In cases where a pre-filter is needed but space and/or small volumes are present, Pocket Filters can be utilized in lieu of an Indexing Drum Pre-filter.
In cases where VOC control is required, Air Clear recommends the use of a Regenerative Thermal Oxidizer (RTO) utilizing a variety of “Pre-Filtering” Technologies to remove contaminants up steam of the RTO. The plugging problem is exasperated due to the numerous types of contaminants plugging the RTO. The right pre-filter has resulted in the adaptation of several filtration technologies which have been a part of Air Clear’s product line for years.