Refrigerated Joule Thomson plants are economically designed for gas liquids recovery. These are simple systems to cool the gas to meet a dewpoint specification. JT plants are an economical choice for rich gas applications as, frequently, no residue compression is required. These may be used as a quick solution to gas liquids recovery while a larger plant is being constructed. Azota employs the use of different technologies to ensure the appropriate level of hydrocarbon dewpoint controlling, such as a JT plant, MRU plant, deep hydrocarbon dew pointing unit (DDP) or a turboexpander (an expander/compressor in a single package). Hydrocarbon dewpoint control is critical for transmission pipelines.

High efficiency gas liquid recovery plants have long been the central aspect of Azota’s process design. From our early plants in 1990’s, we have been improving our design with constant innovation. Azota designed plants are known for their minimized compression with high-recovery process designs. This has resulted in solid operational performance with standout technology in both ethane recovery and propane recovery modes of operation
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While usually provided as part of our gas processing plants, inlet liquid handling has become a significant area of technology specialization, often on a standalone basis. Azota designs and installs slug catchers to exacting specifications for the removal of liquids.
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Azota provides both standalone Acid Gas Removal Units (AGRU) and units part of a turnkey natural gas processing plant suite. These units ensure thorough removal of acidic components such as CO₂, H₂S, mercaptans and COS. We are the only designer of split flow, high efficiency amine systems capable of meeting <10 ppm CO₂.
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Azota will design and build your acid gas injection system after the required permits are acquired.

Often, large quantities of H₂S warrant the installation of a Sulfur Recovery Unit (SRU) when the H₂S cannot be safely disposed of through reinjection into a reservoir well. When reinjection is not available, an SRU may be required to separate the H₂S into elemental sulfur, which can then be sold. We recognize that there are many ways to handle elemental sulfur and will help you select the most economical disposal option.

Azota provides gas dehydration where required to ensure the water dewpoint specification is met. Glycol dehydration or molecular sieve technology is typically incorporated into our overall plant design.  We will ensure that the appropriate dehydration system, such as a TEG or a mole sieve unit, is chosen for the process. Azota was the first to offer a TEG dehydration unit integrated with a low temperature, high ethane recovery plant.
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Condensate stabilizers are designed to reduce the vapor pressure of raw liquid condensate from a wellhead or pipeline to “stabilize” the liquid product for storage and sales. Stabilization is typically accomplished by liberating light hydrocarbons (C1 through C4s) in a medium- to low-pressure, reboiled distillation column. The overhead vapor can be utilized as fuel or returned to a plant for further processing. The remaining liquid product (C5+) can be stored or transported as a natural gasoline product or blended with a crude feedstock for further process. Some designs also allow for recovery of a separate Y-Grade NGL product.
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