Reliable, Efficient Gas Sweetening with Solutions from Evonik
Natural gas, biogas and syngas must be treated before use: acid gases such as CO₂ and H₂S can compromise process efficiency, safety and compliance with gas specifications. Evonik supports the gas-processing industry with CAPLUS® specialty amine solvents for acid gas removal.
Why Choose Evonik for Gas Sweetening?
- Proven Performance: Our CAPLUS® specialty amines remove CO₂ and H₂S from natural gas, syngas and biogas streams. In a commercial natural gas processing plant in Southeast Asia, CAPLUS® met all contractually agreed performance targets during a three-month observation period.
- Operational Efficiency: Compared with conventional absorption agents, CAPLUS® has delivered energy savings of approximately 10% and capacity increases of approximately 20% in commercial operation. Actual results depend on plant design and operating conditions.
- Stable Solvent Chemistry: Compared with state-of-the-art amines, CAPLUS® shows less corrosion, less oxidative degradation and less foaming, reducing chemical make-up. In a commercial biogas plant, no absorbent refill was required for over approximately two years of operation.
Solutions by Application
Amine-Based Gas Treatment
- CAPLUS® – High-performance amine-based absorbents for CO₂ and H₂S removal in natural gas processing, syngas treatment, and biogas upgrading.
How Does CAPLUS® Work? CAPLUS® has a molecular structure with multiple active sites optimized for efficient CO₂ capture. Operators can use this efficiency in two ways: lower the solvent flow rate at constant gas throughput to reduce regeneration energy, or raise gas throughput at the same energy input to increase plant capacity.
Your Evonik Advantage
- Amine Expertise: More than 50 years of development expertise in amine technologies, backed by Evonik's global production network.
- Customized Support: Our specialists partner with you during start-up and runtime to optimize your acid gas removal unit for energy or capacity targets.
- Easy Changeover: Switching from conventional amines such as MDEA/piperazine to CAPLUS® requires no plant modifications.
Ready to Optimize Your Gas Sweetening Process?
Find out how CAPLUS® can lower regeneration energy or increase throughput in your acid gas removal unit.
Contact us today or explore CAPLUS® solutions.