1
Modelling analysis and
- ptimization for an oil shale
process
Jimmy Jia 1, Rick Sherritt 1, Jim Schmidt 1, Gwen Chia 1 , Wenzhong Shang 2 Shuyuan Li 3
1 PROCOM Consultants Ltd. 2 Shenmu Shanjiang Coal Chemical Co. 3China Petroleum University
Modelling analysis and optimization for an oil shale process Jimmy - - PowerPoint PPT Presentation
Modelling analysis and optimization for an oil shale process Jimmy Jia 1 , Rick Sherritt 1 , Jim Schmidt 1 , Gwen Chia 1 , Wenzhong Shang 2 Shuyuan Li 3 1 PROCOM Consultants Ltd. 1 2 Shenmu Shanjiang Coal Chemical Co. 3 China Petroleum University
1
1 PROCOM Consultants Ltd. 2 Shenmu Shanjiang Coal Chemical Co. 3China Petroleum University
2
A New Oil Shale Plant Is Commissioned in Jul. 2010 ------ Yaojie
Oil Shale Feed Properties Review Process Introduction
ASPEN Plus simulation platform Pilot plant simulation and comparison with pilot test Modeling analysis and scale up with various feed rates Enormous gasification has been quantified
3
¢ A large number of SJ- pyrolysis process were operated in
¢ Shan Jiang Coal Chemical Company started pyrolysis process
¢ A series of pyrolysis processes have been built with various
¢ 1t/h è 20t/h capacity ( 1, 4, 8, 12 & 20) ¢ Focus on coal pyrolysis before 2009 with own patents ¢ A new oil shale plant is constructed using SJ technology ¢ Modeling analysis is requested to provide scale up design and
¢ Modeling analysis showed a good agreement with the pilot
4
5
6
7
¢ Construction started at the end of 2009 ¢ Design capacity: 100,000 ton shale oil production per year --
¢ Process is basically similar to SJ coal pyrolysis process with
¢ Scheduled commission date: 25th of July 2010 ¢ Oil sales has been contracted with 4000~5000 yuan/ton (US
¢ Location: very dry, 100s mm rain annually ¢ Altitude 2100m (above sea level) ¢ Landscape: Loess Plateau landscape
8
9
¢ 3 retorts were commissioned during the end of Jul. to
¢ Particle size : 8~150mm ¢ Potential oil shale handling capacity: 1000t/day (single
10
11
12
13
14
15
SemiCoke O H H C H C H C H C H C H C H C H C CH CO CO H VGO HGO LGO Kerosene Naphtha
7722 . 0015 . 00002017 . 00003811 . 00005739 . 00005985 . 00013853 . 00009034 . 00032773 . 00007285 . 00081888 . 00006411 . 00010715 . 00050751 . 00013776 . 00017474 . 00007199 . 00007223 . 00010262 .
2 12 5 10 5 10 4 8 4 8 3 6 3 6 2 4 2 4 2 2
+ + + + + + + + + + + + + + + + + + ⇒ SemiCoke O H H C H C H C H C H C H C H C H C CH CO CO H VGO HGO LGO Kerosene Naphtha
8363 . 00105 . 00000895 . 00000623 . 00007374 . 00002763 . 00005721 . 00003892 . 00023524 . 00008075 . 0008865 . 00000623 . 00001226 . 00051213 . 00009901 . 00012559 . 00005174 . 00005191 . 00007376 .
2 12 5 10 5 10 4 8 4 8 3 6 3 6 2 4 2 4 2 2
+ + + + + + + + + + + + + + + + + + ⇒
Reaction type Mineral Reaction Equation Reaction Temperature K Dehydration Hydrated Smectite 446 Gypsum 523 Dehydroxylation Kaolinite 810 Smectite 935 Illite 750 Carbonate decomposition Calcite 1023 Siderite 773 Dolomite 1023 Pyrite 773 Pyrite 773 Oxidation Pyrite 1023 Oxidation Magnetite 1023 Oxidation Troilite 1023 S Capture Calcium Oxide 1023 Hematite 773 Hematite 773
( )
) ( O H 2 2SiO O Al OH O Si Al
2 2 3 2 4 5 2 2
g
r
h
+ ⋅ ⎯→ ⎯
( )( ) ( )
) ( O H 2 smectite O H 2 OH O Al Si Mg Fe Al K Ca
2 2 4 20 3 . 7.67 0.65 0.75 2.59 0.24 0.43
g
r
h
+ ⎯→ ⎯ ⋅
( )( ) ( ) ( )( )
) ( O H 2 O Al Si Mg Fe Al K Ca OH O Al Si Mg Fe Al K Ca
2 22 3 . 7.67 0.65 0.75 2.59 0.24 0.43 4 20 3 . 7.67 0.65 0.75 2.59 0.24 0.43
g
r
h
+ ⎯→ ⎯
( )( ) ( )
) ( O H 2 7SiO O Al 25 . 2 0.5MgO O 0.75K OH O Al Si Mg Al K
2 2 3 2 2 4 20 7 0.5 3.5 1.5
g
r
h
+ ⋅ ⋅ ⋅ ⎯→ ⎯
2 3
CO CaO CaCO + ⎯→ ⎯ r
h 2 4 3 3
CO 3 / 2 CO 3 / 1 O 1/3Fe FeCO + + ⎯→ ⎯ r
h 2 3 3
CO 2 CaO MgO CaCO MgCO + + ⎯→ ⎯ ⋅
r
h
S H FeS H FeS
2 2 2
+ ⎯→ ⎯ +
r
h 2 2 2 2
SO 3 / 1 S H 3 / 2 FeS O H 3 / 2 FeS + + ⎯→ ⎯ +
r
h 2 3 2 2 2
SO 2 O 1/2Fe O 4 / 11 FeS + ⎯→ ⎯ +
r
h
) ( O H 2 CaSO O H 2 CaSO
2 4 2 4
g
r
h
+ ⎯→ ⎯ ⋅
3 2 2 4 3
O 3/2Fe O 4 / 1 O Fe ⎯→ ⎯ +
r
h 2 3 2 2
SO O 1/2Fe O 4 / 7 FeS + ⎯→ ⎯ +
r
h 4 2 2
CaSO O 2 / 1 SO CaO ⎯→ ⎯ + +
r
h
) ( O H 3 / 1 O 2/3Fe H 3 / 1 O Fe
2 4 3 2 3 2
g
r
h
+ ⎯→ ⎯ +
2 4 3 3 2
CO 3 / 1 O 2/3Fe CO 3 / 1 O Fe + ⎯→ ⎯ +
r
h
17
Reaction type Reactants Reaction Equation Pyrolysis Reaction Oil Shale Combustion Hydrocarbons CO H2 SemiCoke Gasification reaction SemiCoke HydroCarbon Methanation Reaction CO CO2 Hydrocarbon Cracking HydroCarbon Water Shift CO
( )
2 2 2 2
H / 742 ) ( O H 2 1 H mol kJ g O
r
h
+ ⎯→ ⎯ + ) ( O H CO CO O H C
2 2 2 n m
g
r
h
+ + ⎯→ ⎯ +
SemiCoke O H H C H C H C H C H C H C H C H C CH CO CO H VGO HGO LGO Kerosene Naphtha OilShale
r h
θ ϖ π ο ν µ ϖ λ κ ι η γ ϕ φ ε δ χ β α + + + + + + + + + + + + + + + + + +
⎯→ ⎯
2 12 5 10 5 10 4 8 4 8 3 6 3 6 2 4 2 4 2 2 2 2 2 2 2 2 2
NO S N O H CO O SemiCoke H H SO
x hr
+ + + + + + ⎯→ ⎯ +
2 2
CO O 2 1 CO ⎯→ ⎯ +
r
h
O
r
h 2 4 2 2
H 2 CH 4H CO + ⎯→ ⎯ +
( )
CO / 98 . 41 H CO CO
2 2 2
mol kJ O H
r
h
− + ⎯→ ⎯ +
( ) ( )
Carbon mol kJ H
r
h
/ 38 . 131 CO O H C SemiCoke
2 2
− + ⎯→ ⎯ +
2 2 n m
CO O 2 1 H C H
r
h
+ ⎯→ ⎯ +
2 2)
a b)
a)
n m
H H C H C H C + + ⎯→ ⎯ r
h
O H CH 3 CO
2 4 2
+ ⎯→ ⎯ +
r
h
H
18
19
20
21
OS-FEED PYR-GAS DUMMY-1 RET-GAS DRY-COAL Q-SEP1 Q DUMMY-2 PYR-COAL Q-SEP2 Q CMB-GAS AIR-MIX CMB-H2O DUMMY-3 CMB-COAL Q-SEP3 Q REC-GAS HOTAIR H2OSPRAY CYCL-GAS CYCL-H2O CYCL-OIL HOT-GAS GASFLARE STEAM CMB-COOL H2OTOSTM COALH2O COOLASH H20WET WET-ASH ESP-GAS AIR H2OCOOL SEP-GAS SEP-OIL SEP-H2O ESP-H2O ESP-OIL WATERMIX OILMIX PILOTGAS GASFLAR2 PILOTOIL OILMIX2 PILOTASH WETASH2
CALCULATORASH
CALCULATORSS-CMB
CALCULATORSS-PYR
CALCULATORWATER SM-DRYER SM-SEP1 SM-SEP2 SM-PYR SM-CMB1 SM-SEP3 AIR-MIX CYCLONE GASSPLIT SM-COOL MIXQUENC SM-BATH SEPQUENC GASBLOWR AIRCOMP KO-DRUM ESP OWMIX2 OWMIX1 PILOTGAS PILOTOIL PILOTASH
22
°C
°C
23
24
25
26
27
4/38 Limestone St Darra, QLD 4076 Australia P +61 7 3715 8473 F +61 7 3715 6032 www.procom-consultants.com
niche Australian engineering company that provides process engineering and plant commissioning services in several energy industry sectors.
following the closure of the Stuart Shale Oil Plant in Queensland Australia. PROCOM’s directors and several key employees worked
engineering and consulting services to oil shale, UCG, CSM, Refinery in USA, Estonia, China, Jordan and Australia.
28
29
30
31