Q2 Technologies has brought to market the Enviro-Solve ProM series; an innovative non-amine/non-aldehyde mercaptans scavenger for crude oil applications. Q2 Technologies and its former partner Quaker Chemical developed the triazine technology that is used world-wide today. A need was identified to reduce fouling created by amine based scavengers in refineries, production streams and crude oil terminals.

Reaction Overview:

R(Enviro-Solve ProM) + Mercaptans (RSH)                           R’SO4-2 + H2O

  • Enviro-Solve ProM will chelate the H2S molecules and turns them into aqueous non-toxic sulphate salt.
  • The heavier sulphate salt molecule will drop into produced water stream.
  • Reaction is fast and irreversible.

Enviro-Solve ProM reaction time may take from 24-72 hours depending on mercaptan species and viscosity of the hydrocarbon. The viscosity of the hydrocarbon will have a direct impact on how Enviro-Solve ProM separates.

  • Enviro-Solve ProM will not reaction with double bonded mercaptans.
  • Testing on individual hydrocarbon streams is necessary to determine a performance estimation.

Enviro-Solve ProM Lab Data:

An experiment was designed using Trace Sulphur Analysis to determine the performance of Enviro-Solve ProM on different mercaptans from condensate sample from Alberta, CA. A baseline was obtained and then Enviro-Solve ProM was added to the Test Condensate. The Enviro-Solve ProM was injected into the Test Condensate sample and then agitated by hand for a period of five minutes. The Trace Sulphur Analysis was then performed on the sample after 24 hours had elapsed. The samples was then agitated for 2 minutes and allowed to sit for another 24 hours until 48 hours total test time had elapsed. The Trace Sulphur analysis was then repeated. The results are as follows:

 

Table 1. Results on the Test Condensate using Enviro-Solve ProM at 2000 ppm concentrations at elapsed time of 0, 24 and 48 hours.

Component Results of Untreated Test Condensate (ppm) Results at 24 hours of Treated Test Condensate at 2000 ppm ProM concentration Results at 48 hours of Treated Test Condensate at 2000 ppm ProM concentration
Hydrogen Sulphide 1.5 <1 <1
Carbonyl Sulphide <1 <1 <1
Methyl Mercaptan 13 <1 <1
Ethyl Mercaptan 64 7.0 <1
Dimethyl Sulphide 1.4 1.7 <1
Iso – Propyl Mercaptan 194 131 76
Tert – Butyl Mercaptan 121 149 102
 N – Propyl Mercaptan 71 20 7.7
Methyl Ethyl Sulphide <1 <1 <1
Sec – Butyl Mercaptan/Thiophene 734 675 478
Iso – Butyl Mercaptan 102 60 35
Diethyl Disulphide <1 <1 <1
N – Butyl Mercaptan 199 77 37
Dimethyl Disulphide 5.0 4.2 2.8
Diethyl Disulphide <1 <1 <1

 

Reduction of mercaptans in crude oil blends & feedstocks using non amine mercaptan scavenger PRO-M.

Download