Solid desiccant dehydration is a safer alternative to gycol dehydration, which uses a liquid desiccant to absorb water from the gas. A solid desiccant, on the other hand, adsorbs water from the gas stream. Solid desiccants, also referred to as deliquescent adsorbents, are used in a non-generative dehydration process. As the gas passes through desiccant layers, the water adsorbed and slowly dissolves into a brine solution.
While glycol dehydrators are more widely used throughout the industry, solid desiccant dehydration is actually a safer and more cost-effective alternative method for natural gas dehydration. Because systems that use this type of desiccant do not require burners or flames and have no moving parts, they are also exponentially safer for personnel and the environment.
What desiccant does CROFT use?
The enviroDRI® desiccant that Croft Production Systems utilizes as its drying agent is a proprietary blend of non-toxic desiccant pellets that are used in our Passive Dehydration Systems. This desiccant is utilized in order to reduce the amount of water content in the natural gas stream to meet or exceed the pipeline specifications. After many years of research and development on the material makeup and form of desiccant, CROFT has determined that our enviroDRI is the most effective and eco-friendly drying agent that can be used in order to dehydrate natural gas.
enviroDRI is an earthen non-flammable, non-hazardous product that effectively absorbs water while slowly dissolving into a safe, disposable brine solution. It is dependable and reliable and has been used in the industry for over 70 years. And, unlike glycol, enviroDRI’s by-product is a non-hazardous material that can be retrieved by any vacuum truck and safely disposed of.
For more information about our enviroDRI, check out our enviroDRI FAQ.
What solid desiccant system does CROFT offer?
Croft Production Systems, Inc. has developed a solid desiccant dehydrator that is safe, easy, and effective in dehydrating the gas stream. CROFTS’ Passive Dehydration System Wet gas flows upward through a series of solid desiccant vessels, each containing our specifically formulated enviroDRI® desiccant. This product adsorbs the moisture and dissolves into a brine solution that is drained to the water storage on location. This product is a non-hazardous material that has no special disposal requirements. The system is designed on a 30-60 day service cycle. During this time frame, the CROFT service team will visit the location to conduct all preventative checks and maintenance and handle the refilling of the product.
Read more about our Passive Dehydration Systems or request a quote.
*UPDATED May 2020 by a Croft Representative
