CO2 DIAGRAM 21 07 CO2 by HC120519115429

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									                              FLUE GAS                                     LEGEND
                           FROM GASIFIER
                                                                                             STEAM
                             H2            N2     N2                                         F.G.
                                                                                             CO2
                                                                                             MEA
CH4   CATALYTIC          MEA-01        MEA-02   MEA-03                                       CO
      CONVERTER
       METHANE
                                                              LIGNITE                        H2
      HYDROGEN                                                                               CH4
      PRODUCER
                                                                  CO         ASH
                                                               CONVERTOR

  GAS SCRUBBER
        04
                                                                             ST     ST
              NaHCO3                                          CO2 STRIPPER
                                                                   05




        PURE MEA       PURE H2 FOR                       SATURATED CO2                   S
           06           FULE CELL                          MEA -07                       T
                                                                                         E
                                                                                         A
                                                                     FLUE                M
                                                                     GAS


        P1
                                                                             BOILER
                         CO2 CAPTURE PILOT PLANT
  OPERATING PROCEDURE FOR CO2 SEQUESTRATION
                              UNIT.
1. There are three Mono Ethano Amine (MEA) tanks called
   MEA-1,2,3 and one Saturated , CO2 Rich -MEA tank No.7
   and one Pure MEA tank no 6. MEA from pure tank-6 is
   transferred to MEA -1,2,3.
2. The flue gasses contain Nitrogen and trace impurities
   like SO2 and NO2,etc and CO2 up to 17- 19%. These
   come out at an elevated temperature from the Boiler /
   Gasifier generator and are released first into the Alkali
   Scrubber No.4 and then into MEA Tank 2 & 3 for
   stripping the same of CO2 after this the balance N2 gas
   is vented to the atmosphere.
3. The CO2 rich MEA Solvent is then taken to the stripper
   and the CO2 is stripped at 120°C by using Steam from
   the boiler by means of a SS Coil placed in the stripper
   Tank No.5 via tank No. 7 and using pump.
4. The Pure CO2 is taken to the CO converter which has
   burning Lignite Briquettes and once the same is passed,
   the CO2 converts itself into CO. The lean or purified MEA
   is taken to the Pure MEA Tank No.6.
5. The CO is in heated condition and taken to the Hydrogen
   producer where the Steam is mixed with CO to produce
   CO2 and H2 and this mixture is sent to MEA-1 tank to
   strip the same of CO2 and pure Hydrogen is obtained.
   Once the Hydrogen is produced then the same is taken
   to the Fuel Cell to produce power or for production of
   Methane in the Methane converter.
6. The Methane producer contains a mixed bed catalyst to
   convert a mixture of CO, H2 and steam into Methane.
7. The combustion gas analyzer is used to test the quality
   of the Feed gas to the Boiler or the Generator.
1.   Steam Pipe- Seam less steam pipe                             - 1” Nb
      (i) Boiler to Stripper                                       - 11.9 m
       (ii) Stripper to H2 producer                                 - 9.5 m
                                                           21.4 m (22 m)
2.   MEA line           -                                SS- 304 (1” Nb)
        (i).   Sat tank to stripper                                 - 4.5 m
        (ii).  MEA, 1,2,3 to saturated                              - 7.5 m
      (iii).   Stripper tank to pure MEA                           - 13.5 m
        (iv).  Pure MEA to MEA 1,2,3                                - 9.5 m
        (v).   Inter connection 1,2,3                               - 4.5 m
                                                                  39.5 m
3.   Flue Gas                                   - MS 3” Nb (insulated)
        (i)     Boiler to scriber                                   - 21 m
        (ii)   Gasifier to scriber                                  - 9.5 m
                                                              30.5 m (31 m)
4.   CO2 & CO                                      - MS 1” Nb
     (i)      CO2 stripper to CO converter                        -2m
     (ii)     CO stripper to H2 & Methane converter               - 9.5 m
                                                            11.5 m (12 m)
5.   Hydrogen                                                     MS 1” Nb
     (i)      H2 producer to MEA -1                               - 5.5 m
     (ii)     Catalytic converter to CH4                          - 4.5 m
     (iii)    Extra piping for Hydrogen                           - 4.0 m
                                                                   14.0 m

								
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