Innovative Solution Shell Qualifies BASF Technology for Removal of Heavy Hydrocarbons, Water from Natural Gas

Editor: Ahlam Rais

BASF’s Durasorb Cryo-HRU technology proves to be an effective solution for the removal of trace heavy hydrocarbons (HHCs) and water from lean natural gas feeds for cryogenic processing. The technology can be used for new units as well as retrofits.

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Durasorb Cryo-HRU technology is also a retrofit solution for dehydration units that are expecting a change in feed gas composition.
Durasorb Cryo-HRU technology is also a retrofit solution for dehydration units that are expecting a change in feed gas composition.
(Source: BASF)

Germany – Leveraging the extensive know-how and experience of BASF adsorption experts, Shell has qualified BASF Durasorb Cryo-HRU technology for deployment in Shell gas processing plants with lean feed gas streams. Use of Durasorb Cryo-HRU technology, in the pre-treatment section of an LNG production plant offers an effective solution for the removal of trace HHCs, BTEX (benzene, toluene, ethylbenzene, xylene), and water to cryogenic specifications in a single unit. HHCs and BTEX impurities are known to cause freezing in the coldbox resulting in plant downtime and are especially challenging due to the need to remove deeply even from lean feed gas streams. Durasorb Cryo-HRU effectively removes these impurities while also removing water to cryogenic specifications. Implementing Durasorb Cryo-HRU in the LNG pre-treatment section ensures reliable operation and provides operational flexibility to the plant.

Durasorb Cryo-HRU technology is also a retrofit solution for dehydration units that are expecting a change in feed gas composition. BASF will utilise the proprietary modelling software to model and design the Durasorb Cryo-HRU as well as provide Shell with on-going support for efficient operation and design of new plants.

“The qualification of our technology by Shell is a major milestone for our Adsorbents business. BASF quickly addressed the customer need with an innovative solution. We will continue to work with Shell and support their efforts to incorporate Durasorb technology in their projects,” says Detlef Ruff, Senior Vice President Process Catalysts at BASF.

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“BASF is pleased to provide Shell with an innovation to address challenging gas compositions. The operational expertise of Shell and the adsorption expertise of BASF have provided Shell with a step-change technology to address the challenge of processing lean feed gas containing heavy hydrocarbons and BTEX,” adds Adrian Steinmetz, Vice President Chemical Catalysts and Adsorbents at BASF.

“The deep removal of trace heavy hydrocarbons to cryogenic specifications is a key requirement in LNG production from lean or pipeline feed gases. The BASF Cryo-HRU technology provides an effective solution for combined removal of these hydrocarbons and water. Shell is pleased that the technology is now available for use in Shell as well as by the support BASF will provide in implementing the technology for specific cases,” comments Ed Schouten, General Manager Gas Processing Technology in Shell.

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