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Journal of Industrial and Environmental Chemistry | Volume 2
December 06 -07, 2018 | Dubai, UAE
Pet roleum Engineer ing, Oil and Gas
International Conference on
Joint Event
Challenge in operation of Bontang LNG plant due to lean gas entrance
Ferri Yohannes and Danu Purwanugraha
PT Badak NGL, Indonesia
Bontang Liquefied Natural Gas (LNG) Plant is one of the
largest LNG facilities having a capability to produce up to
22.5Million Tons Per Annum (MTPA) LNG and 1MTPA Liquefied
PetroleumGas(LPG).Ithasbeenoperatedformorethan40years
in the most excellent practice. Starting 29 May 2017,Bontang
LNG Plant receives new feed gas supply which contains lean
composition (97% methane content) and causes the overall
feed gas composition to Bontang LNG Plant become leaner
than the original design (methane content approximately 83%).
The entry of leaner feed gas to Bontang LNG plant presented
operational issues both commercially and technically such as
lower LNG quality (HHV), heavy hydrocarbon carry over, lower
fractionation turndown ratio, and potential un-absorb gas. This
paper explains 3 key plant operational strategies that have been
selected in Bontang LNG Plant to accommodate leaner feed gas
supply,
1. Upstream feed gas delivery strategy;
2. Plant modification and operating procedure improvements
3. Dual LNG HHV production: LNG Plant can produce both
lean and rich LNG products simultaneously. Implementation of
these strategies have been successfully performed and provide
plant operating flexibility for new gas producers and maintain
Indonesia’s position in the very competitive LNG business.
e:
Oil & Gas 2018 &
Petroleum Engineering 2018, Volume 2
DOI: 10.4066/2591-7331-C2-006