Driving Natural Gas with Glycol Pumps

Viking Pump helps customers meet high end-user demand

Market Overview

Industrial pumps have many uses in a wide array of market applications—ranging from food processing to pouring asphalt. A growing area in need of specialized pumps is in the oil and gas industry, particularly with regards to the removal of water from natural gas via dehydration. Viking Pump entered this market to support customers striving to deliver high-quality product 24/7 to their end users in the face of rising global natural gas consumption. This increasing demand is expected to continue through 2040, due to population growth, coal displacement by cleaner energy, fracking, etc. 

Natural gas meets an increasing share of world demand


Glycol Dehydration

When natural gas is produced from an underground reservoir, it is saturated with water vapor and might contain heavy hydrocarbon compounds, as well as non-hydrocarbon impurities. In its raw state, natural gas cannot be marketed and, therefore, must be processed to meet certain specifications for acceptable quality “pipeline” and “sales” gas. These days, triethylene glycol (TEG) dehydration, or simply glycol dehydration, is the most common method. The TEG is re-boiled/re-generated at temperatures exceeding 350° F, high temperatures can be tough on all of the components within the system, it also requires specially engineered pumps to operate in these challenging continuous duty dehydration systems.

Glycol Pumps

Leveraging a long history of pump design expertise combined with research into this new market, we were able to develop a customized, innovative pumping solution to help optimize glycol dehydration operations, able to withstand Leveraging a long history of pump design expertise combined with research into this new market, we were able to develop a customized, innovative pumping solution to help optimize glycol dehydration operations, able to withstand demanding conditions with less downtime, longer duty cycle, and thus, lower cost. The Viking GL407 Series™ and GL410 Series™ pumps assist at different critical steps of the natural gas glycol dehydration process (indicated by blue gas flames in the diagram below).

Natural gas production and delivery

These Glycol pumps have the same trusted Viking Pump external gear design we are known for. In addition, to serve this market, the pumps also have these additional features:

  • Enhanced thermal capabilities for easier startup
  • Overall higher temperature rating
  • Fixed precision clearances
  • Increased pressure capabilities with hardened internals, thus, minimizing wear and extending service life. 
  • Less susceptible to leakage due to mechanical seal
  • Easy in-field replacement via motor mount

To Learn More…

We have a lot to share on this topic. Refer to the following Viking Pump white papers:

Contact a Viking Pump representative with questions/concerns when specifying a pump for glycol dehydration applications. 
Also, ask about our catalog and brochure, both of which contain more detailed information about this new line of Glycol pumps.

Asphalt, also known as bitumen, is a sticky, black and highly viscous liquid or semi-solid form of petroleum. Asphalt is man's earliest organic engineering material. Its use as an adhesive and waterproof material dates back to the dawn of civilization. It is still used today largely for road building, roofing and various types of repair work where its water-proofing qualities are required, as well as in rubber and adhesive compounds.

An Engineering firm recently purchased three large internal gear pumps through a local distributor in northern Illinois. In this case, the pumps were intended to be a prime mover for loading their customer’s product—vacuum gas oil (VGO)—onto a transport barge. Traditional pumping technology, i.e., centrifugal pumps, was not a viable option, as pump performance tends to vary based on product viscosity changes.  Since pump operations were scheduled for during the middle of winter, VGO viscosity was sure to increase with dropping temperatures, making it harder to pump.

When it comes to selecting the right pump from the right vendor, buyers often face confusion due to the many options on the market. This article describes the various standard and special features—all in one place—that make Viking’s line of rotary pumps well worth considering (from internal/external gear pumps, to sliding vane pumps…and more). 

Overview In physics, viscosity is a measure of how thick or thin a fluid is. In the world of pumping, we think of it as a measure of a fluid’s resistance to flow. For our purposes, we consider a liquid with a viscosity of more than 750 SSU (Saybolt Second Universal) to qualify as a viscous liquid. If a liquid falls within the “viscous” range (such as molasses, sugar syrup, or glycerin), pump selection must take the viscosity factor into consideration to ensure that product flow is trouble-free. We have a saying here at Viking Pump regarding viscous liquids: "If you can get the liquid into the pump, we can pump it out."

In the processing of chocolate and confectionery, special rotary positive displacement pumps are used to move the chocolate through each of the process steps, from milling cocoa beans to depositing, enrobing or panning.  Since the first pumps were used to move chocolate, people have struggled with how to keep it from leaking out along a pump’s shaft where it exits the casing.