Dresser-Rand, part of Siemens Group, has commissioned an LNGo-HP (high-pressure) micro-scale natural gas liquefaction system for Altagas Ltd. in Dawson Creek, British Columbia, Canada. Producing approximately 30,000 gallons of LNG per day since January 25, 2018, the Dawson Creek facility allows Altagas to scale production in line with demand. The LNGo-HP system converts diesel and other fuels to natural gas, enabling users to monetize stranded gas deposits.
The micro-scale LNGo solution can be deployed in rough terrain or remote regions, eliminating the need to establish an expensive gas pipeline infrastructure or arrange for long-distance trucking of LNG from centralized plants to point of use. It can function as a decentralized solution where the requisite pipeline infrastructure is lacking, or as an onsite solution to reduce or eliminate flaring of petroleum gas at, for example, oil rigs or producing gas fields.
“We take pipeline natural gas and separate it into a feed gas stream and a waste gas stream. The waste gas is used to fuel the Siemens gas engine generator sets which power the LNGo-HP equipment. The feed gas is liquefied in the process to produce LNG," explained Michael Walhof, Sales
Director for Distributed LNG Solutions for the Dresser-Rand business.
For the Altagas project in Dawson Creek, Siemens’ scope of supply included one LNGo-HP system, site civil works, building construction, mechanical and electrical integration, commissioning, startup, and operator training. The LNGo system consists of modules which include two Siemens gas engines, two Dresser-Rand MOS reciprocating compressors, three Siemens MV motors, Siemens variable frequency drives, and associated auxiliaries. The plant, with a footprint of approximately 2,500 square meters, was deployed directly at the site.
Dresser-Rand commissioned its first LNGo-LP (low-pressure) micro-scale natural gas liquefaction system in 2016 at the Ten Man LNG facility in Pennsylvania, U.S. Here, the LNGo technology enables the operator, Frontier Natural Resources, to monetize stranded gas assets at Tenaska
Resources' Mainesburg field, located in the Marcellus Shale.