Acid plants overview

Acid plants.

Jacobs has been designing and building complete acid plants for more than 30 years. These plants incorporate our proprietary equipment designs, resulting in cost competitive plants with low operating and maintenance costs. We design plants that produce acid from three feedstocks:

  • Elemental sulfur (sulfur burning)
  • SO2 offgas from smelters or other sources (metallurgical)
  • Spent sulfuric acid (spent acid regeneration)
 

Sulfur burning acid plants

Sulfur burning acid plants.

Jacobs designs and builds acid plants utilizing elemental sulfur as a feedstock ranging in size from 500-4400 metric tons per day (MTPD). Our typical process is shown in the diagram below.

Our sulfur burning plants incorporate Chemetics’ proprietary designs for:

  • Above ground, conical bottom melter
  • Sulfur gun
  • Sulfur furnace, with no baffle walls
  • Stainless steel converter with internal superheater and exchanger
  • Radial flow gas-gas exchangers
  • Anodically protected coolers
  • SARAMET® piping & distributors
 

Sulphur Burning diagram
 

Metallurgical acid plants

Metallurgical acid plants.

Jacobs designs and builds acid plants utilizing SO2 from smelters, ranging in size from 500-4000 MTPD. An overview of our process is ilustrated in the diagram below.

Our metallurgical acid plants feature Chemetics proprietary designs for:

  • Quench venturi
  • Variable throat scrubber venturi
  • Stainless steel converter with multiple internal exchangers
  • Radial flow gas-gas exchangers
  • Anodically protected coolers
  • SARAMET® piping & distributors
 

Metallurgical Acid Plant Diagram
 

Spent acid regeneration plants

Spent acid regeneration plants.

Jacobs designs and builds acid plants utilizing spent sulfuric acid as feedstock ranging in size from 200-1500 MTPD. An overview of our process is shown in the diagram below.

Our spent acid regeneration (SAR) plants incorporate Chemetics’ proprietary designs for spent acid guns, regeneration furnace, quench venturi, variable throat scrubber venturi, stainless steel converter with multiple internal exchangers, radial flow gas-gas exchangers, anodically protected coolers and SARAMET® piping and distributors.

Jacobs' acid recovery and concentration technologies can also be applied to effluent treatment plants, which are being increasingly required to treat the liquid effluent resulting from the wet gas cleaning sections of metallurgical sulfuric acid plants.

Jacobs offers treatment for these weak acids which are often contaminated with a variety of heavy metals. Our technologies and techniques separate contaminants from the gypsum to produce a saleable product and an environmentally safe solid effluent, or alternatively, clean and concentrate the weak acid to produce a commercial grade acid.

 

Metallurgical Acid Plant Diagram