Desulfurization Units (Liquid-Phase Oxidation Method)

The environmentally friendly solution for deep desulphurisation of natural gas and associated petroleum gas. R&P Co. Grasys carries out the whole range of works, from the engineering estimate and feasibility study to the supply of the sulphur removal equipment.

Desulfurization Units (Liquid-Phase Oxidation Method)

Low-Cost Technology with a Simple and Efficient Process

Description of the Liquid Phase Oxidation of Hydrogen Sulphide to Elemental Sulphur

Sulphur removal by liquid phase oxidation of hydrogen sulphide with a chelated iron solution is a simple and straightforward solution. In the first stage of the process, the feed gas passes through an aqueous solution of an iron chelate-based catalyst in which hydrogen sulphide interacts with iron ions to form fine elemental sulphur and an iron ion solution. Iron ions have virtually no interaction with the other components of the gas because the catalyst acts selectively on the hydrogen sulphide.

The spent solution is sent to a second oxidation stage where 2Fe+2 iron ions are regenerated with air oxygen. The regenerated solution is returned to the first stage. The core chemical process is technically simple and completely environmentally friendly.

Schematic diagram of a sulphur removal unit for natural gas and associated petroleum gas

Why Liquid Phase Cata-Lytic Sulphur Re-Moval Units?

Высокая надежность и долговечность установок

High unit reliability and durability

At least 250 sulphur removal units based on this technology have been in operation worldwide for more than 30 years, including in the CIS countries.

Полностью российская разработка и производство оборудования дешевле зарубежных аналогов

Completely Russian designed, the equipment is cheaper than its foreign counterparts

The sulphur removal units are manufactured at the Grasys production facility. Due to the use of a safe Russian-made catalyst, which is continuously regenerated with atmospheric air, the units have moderate capital costs and low operating costs.

Эффективная технология

Efficient technology

Guaranteed reduction of hydrogen sulphide content by hundreds or thousands of times over a wide process pressure range from 0.1 MPa to 10 MPa.

Простой и экологичный процесс очистки газов от сероводорода

Simple and environmentally friendly process to remove hydrogen sulphide from gases

No toxic substances are used or produced in the process. Sulphur removal units convert H2S into elemental recyclable harmless sulphur (sulphur is used as an additive in the production of sulphur-asphalt concrete, or is landfilled).

Economic Feasibility of Different Sulphur Removal Methods

Экономическая целесообразность различных способов сероочистки
Возможности

Guaranteed reduction of hydrogen sulphide content by hundreds or thousands of times over a wide process pressure range from 0.1 MPa to 10 MPa.

Sulphur removal units convert H2S into elemental recyclable harmless sulphur (sulphur is used as an additive in the production of sulphur-asphalt concrete, or is landfilled).

Operating Procedure When Dealing With R&P Co. Grasys

1

Submit a request on the site or reach our specialist by phone

2

Grasys expert speaks to you and finds out your needs

3

You fill out a questionnaire with the desired equipment parameters

4

Our expert prepares a quotation with the most efficient solutions to your application. Contract to be concluded

5

We perform engineering, designing, manufacture equipment with its further testing and placing into service, etc

6

We ship equipment to the operational location and provide a package of documents

7

We are engaged in start-up operations and equipment commissioning

8

We provide aftersales service to ensure equipment efficient performance and reliability excellence (optional)

Advantages of Cooperating with R&P Co. Grasys

High-tech Russian manufacture

Implementation of import substitution programs

Hands-on experience in implementing over 1600 projects within 20 years

Manufacturing equipment of any size and level of sophistication

Turnkey projects (EPC-contracts)

Prompt technical support

Information contained herein does not constitute а public offer

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