1. LLC “PERVIY ZAVOD” A basic design for the technology of sweetening the kerosene fraction (50 m3 / day) from mercaptans has been developed.

2. PJSC “Nizhnekamskneftekhim”

In March 2020, Basic Design was issued for the reconstruction of the oxidative treatment unit of sulfur-alkaline wastes of the ethylene pyrolysis unit. Sulfur-alkaline wastes in the amount of 14.2 t / h with a sulphide content of 8000 mg / l (0.8% wt.) are to be cleaned. In addition to sulfides, chemically contaminated wastewaters also contain toluene, methanol, phenol, formaldehyde, and suspended solids. The planned start-up of the unit is in 2022.

3. PJSC Orsknefteorgsintez

In February 2020, the Basic Design was issued for mercaptan removal unit of liquefied hydrocarbon gases from a delayed coking unit (10.2 m3 / h) and the flow of saturated LPG from gas fractionating unit (34.2 m3 / h) using the Demerus technology with a heterogeneous catalyst KSM- X. Requirements for the residual content of mercaptan sulfur – not more than 100 ppm. The planned start-up of the unit is in 2022.

4. OJSC “Novoshakhtinsky Refinery of Petroleum Products”

In September 2019, the Basic Design was issued for mercaptan removal unit of liquefied hydrocarbon gases (9.7 m3 / h) of the GFU section by DEMERUS technology with KSM-X heterogeneous catalyst. Requirements for the residual content of total sulfur are not more than 10 ppmw. The planned start-up of the unit is in 2022.

5. JSC “CNPC-Aktobemunaigas” In January 2018, a Basic design was issued for the treatment of sulfur-alkaline wastes (SAW) generated from the oil demercaptanization unit of CNPC-Aktobemunaigas JSC. For the treatment of SAW, the technology of sulfide sulfur oxidation (LOCOS process) using the heterogeneous phthalocyanine catalyst KSM-X was adopted. SAW in an amount of 1.6 m3 / h with a sulfide content (in terms of H2S) of 33100 mg / kg (3.31% by weight) is subject to treatment. In addition to sulfides, SAW also contains mercaptan sulfur in an amount (in terms of sulfur) of 3000 mg / kg (0.3 wt%). LOCOS unit start-up – 2022.

6. LLC “Afipsky Refinery

In April 2018, the Basic Project Design for the block of LPG (50.0 m3 / h) amine treatment from hydrogen sulphide and alkaline treatment from mercaptans was issued. Feed LPG is sourced from the Gas Fractionation Units (saturated feed) and Delayed Coking Unit (unsaturated feed). Proposed technology provides joint treatment of propane-propylene and butane-butylene fractions. Requirements for the residual content of mercaptan sulfur – not more than 10 ppmw. The planned start-up of the unit is in 2022.

7. LLC LUKOIL-NNOS

In February 2017, Basic design of Sweetening unit (treatment of 18,6 m3/h LPG from COS and mercaptans) being a part of Oil Residues processing complex on the basis of DEMERUS LPG technology with heterogeneous KSM-X catalyst was issued. Proposed technology involves joint purification of propane-propylene and butane-butylene fractions. Requirements for the residual content of carbonyl sulphide in PPF – no more than 6 ppm, total sulfur in BBF – not more than 10.0 ppm. Start-up of sweetening block – 2022.

8. JSC “Tomskneftekhim” (SIBUR group)

In September 2016, Basic design for the Block of chemically polluted wastewater (75 m3/h) treatment  from sulfide sulfur was issued. The process is based on LOCOS technology with heterogeneous KSM-X catalyst. Treated feed is chemically polluted wastewater containing 2500 mg/l (0.25 wt.%) of sulfides (calculated as H2S). Besides sulfides chemically polluted waste waters also contain toluene, ethanol, phenol, formaldehyde, suspended solids. Unit start-up – 2022.

9. JSC “Rosneft – Syzran Refinery”

In November 2010, Basic design of unit for sweetening of saturated (18.4 m3/h) and unsaturated (33.2 m3/h) hydrocarbon feed from GFU was issued. It is based on DEMERUS LPG technology with heterogeneous KSM-X catalyst. Separated butane-butylene fraction with total sulfur content not higher than 10.0 ppmw is used for MTBE synthesis. Saturated butane fraction with total sulfur content not higher than 10.0 ppmw is supplied to alkylation block. Sweetening unit start-up – 2024.

10. JSC “Bashneft”

In April 2015, Basic design of LPG desulfurization unit (removal of carbonyl sulfide and mercaptans) (53.0 m3/h) at delayed coking unit DCU-2000 was issued. It is based on DEMERUS LPG & DEMERUS LPG + COS technologies with heterogeneous KSM-X catalyst. Proposed technology implies joint sweetening of propane-propylene and butane-butylene fractions. Requirements for residual carbonyl sulfide content – not more than 10 ppmw, mercaptan sulfur – not more than 5.0 ppmw, total sulfur – not more than 10.0 ppmw. Sweetening unit start-up – 2024.