Natural Gas Processing
Nitrogen Rejection (NRU)
Demand for natural gas will continue to rise as consumers seek a cost efficient, environmentally friendly source of energy and unconventional sources, including stranded gas reserves and associated gas, will have a bigger stake in the overall supply picture. Chart’s natural gas processing technology is perfectly pitched to support these worldwide developments. As well as proprietary equipment, including Brazed Aluminum and Air Cooled Heat Exchangers, Chart provides complete Integrated Process Systems specializing in the following areas.
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Chart has delivered more large scale NRUs than any other supplier of nitrogen rejection technology. Our experience, with in-house design and fabrication of NRUs spans more than 40 years and draws on our proprietary process technology. From the first integrated NRU/NGL unit to handle variable nitrogen content to the world’s largest single train NRU, Chart’s integrated systems to separate and remove nitrogen and recover natural gas liquids and helium, guarantee our position at the vanguard of nitrogen rejection technology. Moreover Chart’s NRU design knowhow extends to adjunct systems that recover high purity Liquefied Natural Gas and refrigeration grade liquid nitrogen if desired.
Chart delivers customers an optimized solution for extracting valuable natural gas liquids (ethane, propane and butane) from a natural gas stream. Chart’s engineering expertise resides in our ability to tackle the most onerous applications where Natural Gas Liquids Recovery is integrated with additional gas processing operations.
Helium is largely recovered as a by-product of natural gas processing and Chart’s process expertise and proven experience in providing integrated NRU systems that enrich and recover helium is highly regarded by companies around the world seeking to exploit their valuable helium resources.
Ryan-Holmes CO2 Recovery
Chart pioneered the technologies of economically separating acid gases from light hydrocarbons using distillation columns. This process is particularly suited to gas streams containing high concentrations of CO2 (▸50%) and therefore ideal for Enhanced Oil Recovery CO2 Flood operations. For gas streams rich in high value natural gas liquids an additional process step to recover and monetize these can be incorporated.