This document discusses a proposed process for separating carbon dioxide (CO2) and purifying hydrogen (H2) from syngas produced via integrated gasification combined cycle (IGCC) combustion. The process involves using a hydrate-based technology in conjunction with chemical adsorption. Diagrams and specifications are provided for the absorber, stripper, flash drum, and knock out drum units involved in the CO2 separation and H2 purification process.

1. Absorption of CO2 from
Syngas
Group Members
2013-CH-28
2013-CH-40
2013-CH-66
2013-CH-72
2013-CH-76

2. Description
• Integrated Gasification Combined Cycle (IGCC)
Technologies discusses this innovative power generation technology
that combines modern coal gasification technology with both gas
turbine and steam turbine power generation, an important emerging
technology which has the potential to significantly improve the
efficiencies and emissions of coal power plants.

3. Introduction
• In order to find an economic and cost effective process of carbon
dioxide (CO2) separation and hydrogen (H2) purification from the
integrated gasification cycle combustion (IGCC) syngas, a hydrate-
based technology in conjunction with chemical adsorption method is
proposed in this work.

4. Introduction
• With power generation from gas turbine and steam turbine the purified
hydrogen gas is also used as a fuel.

5. • The calorific value of hard coal 19,388 Btu/kg

6. Coal Reserves in Pakistan

7. Calorific Value

8. Calorific Value (Thar)

9. • the LCV gas produced by an air-blown, coal-fueled, fluid bed gasifier
will differ significantly in composition from an oxygen-blown,
vacuum residue-fueled, entrained flow gasifier. The resulting gas
composition, flammability and calorific value work in concert to form
the basis for the combustion system design and response

10. • For efficient use of all these fuels, IGCC process gives the best results.
• An integral part of IGCC is Hydrogen Gas Purification.
• With the use of Gas & Steam turbine the production of hydrogen fuel
can increase the efficiency of the process up to 73%
• Hence, a strong understanding of gas purification is important for
maximization of profit.

11. Process Description

12. Process Flow Diagram

14. HX & BOILERS
HX - I
Hot Stream
Flow:217297.7 kg/hr
Inlet T: 118 C
Outlet T: 90.5 C
Cold Stream
Flow: 242494 kg/hr
Inlet T: 76.7 C
Outlet T: 100 C

15. HX & BOILERS
HX - II
Hot Stream
Flow: 8827 kmol / hr
Inlet T: 90 C
Outlet T: 50 C
Cold Stream
Flow: 449000 kg / hr
Inlet T: 31 C
Outlet T: 51 C

16. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do
eiusm odelit, sed do
Lastest Work
Absorber

17. ABSORBER
LEAN SOLUTION
FROM STRIPPER TO
ABSORBER Molar Flow Rate
WATER 8018.458119
AMDEA 809.2179682
CO2 0
TOTAL 8827.676088
COMPONENTS
molar flowrate
(kgmole/hr)
HYDROGEN 6588.746
NITOGEN 2284.830
CARBON
MONOXIDE 26.389
CARBON DIOXIDE 2085.233
ARGON 23.080
METHANE 46.761
WATER 0.423
TOTAL WET 11055.462
TOTAL DRY 11055.039
Flash to
Absorber Molar Flow Rate
water 44101.520
aMDEA 4450.699
CO2 881.773
Total 49433.991
COMPONENT Molar Flow Rate
WATER 52119.978
AMDEA 5259.917
CO2 2084.191
TOTAL 59464.085
Components
molar flowrate
(kgmole/hr)
hydrogen 6588.746
nitogen 2284.830
carbon monoxide 26.389
carbon dioxide 1.043
argon 23.080
methane 46.761
water 0.423
total wet 8971.271
total dry 8970.848

18. Stripper Lorem ipsum dolor sit amet, consectetur
adipiscing elit,
Sample Text
Lorem ipsum dolor sit amet, consectetur
adipiscing elit
Sample Text
Lorem ipsum dolor sit amet, consectetur
adipiscing elit
Sample Text
Flash to
Stripper Molar Flow Rate
water 8018.458
aMDEA 809.218
CO2 160.322
Total 8987.998
Top Composition
of Stripper Molar Flow Rate
CO2 160.3223619
H2O 1007.931307
Total 1168.253669
Lean Solution Molar Flow Rate
water 7010.527
aMDEA 809.218
CO2 0.000
Total 7819.745

19. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do
eiusm odelit, sed do
Lastest Work
Flash Drum
Lean Solution to Splitter Molar Flow Rate
water 52119.978
aMDEA 5259.917
CO2 1042.095
Total 58421.990
Rich Solution Molar Flow Rate
water 52119.978
aMDEA 5259.917
CO2 2084.191
Total 59464.085
CO2 leaving from Flash 1042.095352

20. Knock Out
Drum
Component inlet of KO drum Top of KO Drum Bottom of KO Drum
CO2 160.322 160.322 0.000
H2O 1007.931 0.000 1007.931
Total 1168.254 160.322 1007.931