APPLICATIONS & SOLUTIONS
Oil and gas are widely used in modern life. Oil fuels our cars, trucks and planes that underpin modern economies and lifestyles. Gas provides us with electricity and can be used for cooking and heating houses, buildings and water. Byproducts from oil refining are used to produce plastics as well as pesticides, lubricants, waxes, tars and even asphalt for our roads.
Using activated carbon is a proven and effective way of removing contaminants and producing a pure product. Our carbon products can also be used to prevent damage to industrial equipment and recycle resources that can be reused later down the line.
- Provides a means to recover process chemicals and reduce purchases
- Generates higher purity products
- Protects process equipment
- Recycles resources e.g. water
- Improves plant economy by extending production time
Amine and Glycol Recovery
By treating a side stream of recirculating amine liquor to remove or reduce H2S/CO2 and other degradation compounds from natural gas, activated carbon can greatly prolong the service life of the amine. This capability protects other equipment in the circuit by managing the content of Heat Stable Salts (HSS) formed during stripping of the rich amine solution.
Similarly, the purification of glycol used in gas dehydration processes ensures optimum performance and reduces the risk of secondary contamination of the raffinate.
Activated carbon will:
- Minimise degradation of circulating solvent/absorbent inventory
- Remove harmful impurities from the end product
- Protect process equipment
- Maximise utilisation of absorbent/process chemicals
- Optimise operation of process equipment
Within the petrochemical and power generation industries it is common practice to recycle condensate steam for use as boiler feedwater. This process improves plant economics and offers a ready source of heated water. However, recycled condensate accumulates contamination from the system, comprising both organics (known as oil) and solids, including metallics in ionic form. To manage these unwanted constituents of the condensate, activated carbon and ion exchange resin systems are often employed to purify the recycled water. In such cases it is critical to ensure that mineral release and slip from each treatment step is carefully managed by the correct choice of media and sizing of equipment. This will ensure the continued efficient operation of the boiler and turbines.
During the hydrocracking process, certain compounds called heavy polynuclear aromatics (HPNA) are formed in the hydrocracking reactors caused by condensation of aromatics and dehydrogenation of polynaphthenes. Once this happens, HPNAs are very hard to remove and build up to create critical fouling of heat exchangers and catalyst deactivation. These compounds are considered to be refractory in a hydrocracking process and are highly resistant to conversion in a hydrocracking reaction zone. It is critical to prevent this because it leads to reduced quality in production. Our activated carbon products are an ideal solution for removing these undesirable components.
Mercaptan Removal and Fuel Sweetening
Mercaptans are organic compounds of hydrocarbons with sulfur and they have a characteristic bad smell, as well as corrosive properties in pipelines. Therefore, if mercaptans are present in high concentrations in natural gas, these must be removed to provide a suitable feedstock or end-product. To separate the mercaptans from natural gas in the sweetening plant, normally the process of oxidation of the mercaptans is performed. This is a catalytic process, often involving activated carbons.
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