integrated ngl and lng production

Download Integrated NGL and LNG production

Post on 11-Jan-2017

888 views

Category:

Technology

4 download

Embed Size (px)

TRANSCRIPT

  • Integrated NGL and LNG production.

    Heinz C. BauerVP technology of NG processing plants, Linde EngineeringGastech, Singapore, 27-30 October 2015

    *Moscow 17 April 2014

    StarLNGLTMLinde AG Engineering Division

    *BiographyAfter graduation at the Technical University Munich as PhD in Applied Physics, Dr Heinz Bauer joined Linde Engineering 34 years ago. He worked in different positions in process design as well as sales and marketing. His focus has been on all kind of cryogenic gas processing including cracked gases, synthesis gas, refinery off-gases and of course natural gas. Presently he is responsible as Vice President for technology of natural gas processing plants.

    heinz.bauer@linde-le.com

    *

    StarLNGLTMLinde AG Engineering Division

    *Linde Engineering | LNG product range

    Qmax BOGRtpd

    101001,00010,000

    110mtpaLNG

    0.1

    0.01Kwinana LNGstrong positionlimited marketdeveloping positiongrowing market

    CWHEmulti cycleCWHEMR cycle

    simple setuplimited marketPFHEMR cyclePFHEN2 cycleLINStarLNGTM

    *

    StarLNGLTMLinde AG Engineering Division

    *Motivation for LNG + NGLhundreds of NGL recovery plants with ~200 MMSCFD feedC2 recovery/rejection depends on market pricesCH4 production in gaseous (pipeline) or liquid (LNG) form opens new business channels

    U.S. Lower-48 States Natural Gas Processing Capacity source: U.S. Energy Information Administration, eia

    *

    StarLNGLTMLinde AG Engineering Division

    *Tie-in point for LNG productiontail-end tie-inoffers the most independent solutionwarm-end tie-inunloads residue gas compressioncold-end tie-inallows for the tightest integration of NGL and LNG production, unloads residue gas compression

    LNGLNGLNGselected

    *

    StarLNGLTMLinde AG Engineering Division

    *Cryo Module and LNG Storagea gaseous side stream of the demethanizer column overheads is sent to a Cryo Module

    *

    StarLNGLTMLinde AG Engineering Division

    *Cryo Module and LNG Storagea gaseous side stream of the demethanizer column overheads is sent to a Cryo Moduleafter partial condens-ation of the vapor the liquid fraction is returned to the column

    *

    StarLNGLTMLinde AG Engineering Division

    *Cryo Module and LNG Storagea gaseous side stream of the demethanizer column overheads is sent to a Cryo Moduleafter partial condens-ation of the vapor the liquid fraction is returned to the columnthe remaining light vapor fraction is liquefied, subcooled and sent to LNG storage

    *

    StarLNGLTMLinde AG Engineering Division

    *Refrigeration Unitrefrigeration is provided by a proprietary Cryostar companderthe working fluid of the compander is a N2/CH4 mixtureheat of compression is rejected to the ambient by air cooling (base case) or water cooling

    *

    StarLNGLTMLinde AG Engineering Division

    *End-flash & BOG handlingend-flash & boil-off gas from LNG storage is compressed and sent to the suction side of the residue gas compressor

    *

    StarLNGLTMLinde AG Engineering Division

    *Companderall 14 Q-max LNG carriers (including Mozah) have been equipped with two onboard BOGR systems each, which had been designed and manu-factured by Cryostar (a Linde company)the BOGR systems are built around a two-shaft compander

    Mozahowned and operated by Qatargas 2

    *

    StarLNGLTMLinde AG Engineering Division

    *Cascaded Refrigeration SchemeC3 pre-coolingwork expansion of feed gaswork expansion of mixed refrigerantJ-T refrigeration for sub-cooling

    *

    StarLNGLTMLinde AG Engineering Division

    *StarLNGLTM Process Features

    In combination with an NGL plantDouble N2 expander processSingle mixed refrigerant (SMR) processMixed fluid compander (StarLNGLTM) process Number of rotating equipmentHigh (N2 compressor, 2 expander/booster sets)Low (MR compressor)Low (MR compander)Ease of operationHigh (good turn-down capability, easy start-up)Fair (elevated settle-out pressure, refrigerant handling)High (same as N2 expander process)Logistics of refrigerant make-upEasy (only nitrogen)Complex (in addition to N2 and CH4 a choice of C2 to C5 components)Easy (nitrogen plus methane)Process safetyVery high (only nitrogen)Fair (increased amount of C3+ in liquid form under pressure)High (only volatile CH4 plus N2 in the refrigerant)EfficiencyFair (even with two expanders)High (good heat integration using latent heat)High (in combination with NGL plant)

    *

    StarLNGLTMLinde AG Engineering Division

    *Economics10% more feed gas (220 instead of 200 MMSCFD) generates 10% additional NGLsload to the residue gas compressor is unchanged6 MW net power demand of the compander generates 156-280 t/d LNG(100-180 kgpd) depending on gas composition

    110%100%110%no extra load6 MW~218 t/d~140 kgpd

    *

    StarLNGLTMLinde AG Engineering Division

    *ConclusionsSmall-scale LNG production (100 180 kgpd) can be integrated smartly into conventional mid-scale NGL recovery plantsLNG + NGL LNGLTM

    Refrigeration is based on a sophisticated cooling concept including Cryostar's proven compander

    Economics are favorable even during ramp-up of LNG production, as additional NGL product improves revenues

    Linde Process Plants, Tulsa, OK (www.lppusa.com) is glad to quote for your specific project

    *

  • Thank you for your attention.Heinz C. BauerVP technology of NG processing plants, Linde EngineeringGastech, Singapore, 27-30 October 2015

    *Moscow 17 April 2014Moscow 17 April 2014*

    Moscow 17 April 2014*

    Moscow 17 April 2014*

    Moscow 17 April 2014*

    Moscow 17 April 2014*

    Moscow 17 April 2014*

    Moscow 17 April 2014*

    Moscow 17 April 2014*

    Moscow 17 April 2014*

    Moscow 17 April 2014*

    Moscow 17 April 2014*

    Moscow 17 April 2014*

    Moscow 17 April 2014*

    Moscow 17 April 2014*

    Moscow 17 April 2014

Recommended

View more >