begg cousland

Hydrochloric Acid

Filters › Process/Tank Emissions

HYDROCHLORIC ACID / PROCESS FILTRATION

PROCESS INFORMATION

Hydrochloric Acid can be emitted from many industrial processes, where it is either used in that form, or generated from the process.
HCl will usually be in fine, sub-micron mist form.

The gas comes from the process or vapours are drawn to the chimney by a suction fan.

Example:

In a PVC processes the VCM gas is condensed and the liquid is then fed to a reactor, before passing H2O seal boxes and gas tank stages, prior to compression. At some stage the gas must be neutralised in an absorbing tank of NaOH flakes.

HCl mist load typically 50 ppm

PROBLEMS TO SOLVE

Air Pollution

High consumption cost of NaOH in VCM process

DESIGN SOLUTIONS

File Name : DSCN1180.JPG File Size : 730.4KB (747881 Bytes) Date Taken : 2005/08/16 09:58:50 Image Size : 1600 x 1200 pixels Resolution : 300 x 300 dpi Bit Depth : 8 bits/channel Protection Attribute : Off Hide Attribute : Off Camera ID : N/A Camera : E775 Quality Mode : FINE Metering Mode : Matrix Exposure Mode : Programmed Auto Speed Light : No Focal Length : 5.8 mm Shutter Speed : 1/8.2 second Aperture : F2.8 Exposure Compensation : 0 EV White Balance : Auto Lens : Built-in Flash Sync Mode : N/A Exposure Difference : N/A Flexible Program : N/A Sensitivity : Auto Sharpening : Auto Image Type : Color Color Mode : N/A Hue Adjustment : N/A Saturation Control : N/A Tone Compensation : Normal Latitude(GPS) : N/A Longitude(GPS) : N/A Altitude(GPS) : N/A DSCN1027