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ExxonMobil methanol to gasoline (MTG)

Syngas Technology Conference, Colorado Springs, CO

October, 2017

Mitch Hindman

Sales Manager, Refining & Gas Processing Technology

22

Methanol to Gasoline process sequence

SynGas

generation

Methanol to

gasoline(CHX)

Coal

Natural gas

BioMass

Methanol

generation

(CO + 2H2) (CH3OH)

O2/H2O

(CnH2n) n=3-10

H2O

MTG process

44

Methanol to gasoline chemistry

CH3OH Light Olefins + H20

Light Olefins C5+ Olefins

Paraffins

Aromatics

Naphthenes

C5+ Olefins Gasoline

Methanol

4 Olefins 3 Paraffin + 1 Aromatic

Typical gasoline reaction

55

MTG product

• MTG produces a bi-modal distribution of mixed hydrocarbons

• The product mix is limited to LPG and sulfur free regular

octane gasoline (fully meets requirements of ASTM-4814)

Hydrocarbon types in MTG product

66

• Methanol is vaporized by

heat exchange with

reactant

• Methanol feed partially

converted to a di-methyl

ether (exothermic

equilibrium reaction)

• Hot DME/MeOH mixed

with recycle gas and fed to

parallel MTG reactors

• One reactor is off-line for

regeneration/stand-by

• Condensed water and

gasoline phases are

recovered in a product

separator and processed

down stream

ExxonMobil fixed bed MTG multi-reactor system

DME Rx

Water

Raw

hydrocarbons

MTG

RxsWater

Steam

Pre-

heater

Vaporizer Super-

heater

77

• Raw MTG gasoline is fed to de-ethanizer and stabilizer columns to remove fuel gas and LPG fractions from the gasoline

• Stabilized gasoline is split into light and heavy gasoline fractions

• Heavy gasoline is mildly hydro-treated to reduce Durene(1,2,4,5 tetra-methyl benzene) content

• Treated heavy gasoline and light gasoline or blended into finished product

Raw gasoline recovery section

88

MTG yields and properties/composition

MTG gasoline yields

Percent of

Feed

Percent of

Hydrocarbon

Product

Gas 1% 2%

LPG 5% 11%

Gasoline 38% 87%

H2O 56% -

MTG gasoline

composition properties

Octane, RON 92

Octane, MON 82

(R+M)/2 87

Paraffins, vol% 53

Olefins, vol% 12

Naphthenes,

vol%9

Aromatics,

vol%26

Benzene, vol% 0.3

Sulfur nil

Typical values based on commercial operations. Actual values will vary based on gasoline RVP and operating conditions.

MTG commercial experience

1010

New Zealand SynFuel MTG plant

The New Zealand SynFuels 600 KTA Gasoline plant started up in 1985

The plant was operated until 1997

Methanol to

gasoline – MTGGas reforming and

methanol synthesis

ExxonMobil photo

1111

World’s first coal-to-liquids plant using MTG

MTG unit

Photo used with permission of Jincheng Anthracite Mining Group (JAMG)

In 2009, Jincheng Anthracite Mining Group in Shanxi Province

China started the first 2nd Generation MTG Plant: 100 KTA Gasoline

1212

Second grassroots MTG plant in construction (JAMG II)

In 2011 Jincheng Anthracite Mining Group licensed to build a

1 MTA MTG complex – Photo March 2016

Photo used with permission of Jincheng Anthracite Mining Group (JAMG)

1313

1. 2006, Shanxi, China, 100 KTA

2. 2007, Wyoming, U.S., 600 KTA

3. 2011, Shanxi, China, 1 MTA

4. 2012, Louisiana, U.S. 1.6 KTA

5. 2012, Louisiana, U.S. 500 KTA

6. 2014, U.S. 640 KTA

ExxonMobil MTG fixed bed licenses

MTG licensing

ExxonMobil and

Air Liquide

MTG alliance ExxonMobil fixed bed MTG technology

is licensed by Air Liquide Global E&C

Solutions as part of a complete

package of technologies

• Integrated technical proposal / studies for

Gas to Gasoline or Coal to Gasoline

• All primary process licenses and process

guarantees

• Integrated and optimized process design

package

• Coordinated technical support from Air

Liquide and ExxonMobil

• MTG catalyst is supplied by ExxonMobil

1616G2G™ Pack v1 – 20Jul2015. Non-Confidential Information. Modifications or reuse not permitted without prior authorization. .

Natural Gas

Lurgi

Syngas

Plant

Air Liquide technologies

ExxonMobil technology

Lurgi

Methanol

Plant

ExxonMobi

l MTG

Plant

ASU

Off sites and Utilities (common)

1.5 B NM3/yr

5,000 T/D

Methanol

16 KBD / 700 KTA

Gasoline

Technology summary: methanol & MTG

Fluid bed MTG

Fluid bed MTG

• In 2014 ExxonMobil and Sinopec

Engineering Group (SEG) executed

Cooperative Development

Agreement (CDA) to develop a

new generation MTG process

• Under this R&D Program

ExxonMobil and SEG are

completing a fluid bed MTG design

based on over 30 years of research

and development on fluid bed MTG

and other fluid bed processes

* A joint activity between Mobil Research and Development

Corporation, Union Rheinishce Braunkohlen Kraftstoff AG and

Uhde GmbH-Dortmund, Germany, United States Department

of Energy, and the Ministry for Research and Technology of

the Federal Republic of Germany

1983 12 T/D Fluid Bed MTG

Demonstration Plant *

1919

SEG / ExxonMobil fluid bed MTG

• Single fluid bed reactor and regenerator replaces multiple fixed beds

• High pressure steam generation replaces recycle gas quench for temperature control

• Significant reduction in equipment and piping for lower Capex

• Lower Opex due to net steam generation and lower catalyst costs

2020

SEG fluid bed MTG pilot plant

• Pilot studies conducted at SEG Research Center, Luoyang, Henan Province, China

• Studies confirmed operating conditions and process configuration

Photo used with permission of SEG

Photo used with permission of SEG

2121

Fluid bed MTG technology collaboration

SEG, ExxonMobil, and Air Liquide have agreed to to collaborate on fluid

bed methanol-to-gasoline (MTG)

Engineering and

technology development

experience in a number

fluid bed technologies

and a wide range of

engineering services from

pre-feasibility to EPC

40+ years of MTG

catalysis and process

development, design and

operation

Experience and expertise in

licensing and engineering of all

essential elements for

conversion of coal and gas to

methanol, and integration with

methanol conversion

technologies

2222

New Zealand Synfuels MTG complexThe world’s first commercial scale gas-to-liquid plant

ExxonMobil photo

23

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