DESULPHURISATION

Processes For Biogas Desulphurization

I. Dry Methods

SCHEME CHARACTERISTICS WASTES WASTES CHARACTERISTICS
Solid bed columns or boxes with purifying material on the base of iron ore Type: solid

Amount: several times the original mass of hydrogen sulphide
  • Hazardous: may cause self-ignition
  • Water soluble sulphur compounds may contaminate underground water

II. Wet Methods

SCHEME CHARACTERISTICS WASTES WASTES CHARACTERISTICS
Absorption in an alkali water solution Solution non regenerated.. Type: liquid Amount many times the mass of the removed hydrogen sulphide
  • Water soluble alkali together with the sulphur components may contaminate underground water

III. BIOSULFEX® PROCESS (by Innovative Group PROMIS)

SCHEME CHARACTERISTICS WASTES WASTES CHARACTERISTICS
Wet catalytic method No effluents.

Averange H2S removal cost reduced to 1gr/m3 biogas* 0,002€/ m3 biogas*
Sulfur pulp

Solid: elemental sulphur Amount: equal to the mass of hydrogen sulphide. Wasteamount close to theoretically minimum
  • Non-reactive,
  • no water soluble solid pulver.
  • Possible by product,
  • For sale as a fertiliser component or for chemical or agro processes

Innovative group
PROMIS

Innovative group PROMIS has the rights for these commercially known technologies.

BIOSULFEX®

FOR DESULFURIZATION OF BIOGAS AND/OR OFF AIR

A leading technology for treating the biogas before gas engines, burners etc. Unique for its extremely low pressure drop. Optionally it can also remove dust and siloxanes from the gas.

MULTICAT®

FOR COMPLEX TREATING THE ASSOCIATED GAS TOGETHER WITH OIL

Best for small oil and gas wells. It is unique for its easy removing H2S from the crude oil before transportation.

BIOSULFEX®

FOR DESULFURIZATION OF NATURAL AND RAFINERY GAS

A technology for removing not only H2S but also mercaptanes, organic sulfides etc. Uses two catalytic solutions.