03.05.2013 Views

Bilingual Tech Mapping for Pulp Paper Guideline - Asosiasi Pulp ...

Bilingual Tech Mapping for Pulp Paper Guideline - Asosiasi Pulp ...

Bilingual Tech Mapping for Pulp Paper Guideline - Asosiasi Pulp ...

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Figure 3.5 System RDH equipment / Superbatch<br />

Process RDH / Superbatch:<br />

Charging of chip into the digester (with steam packing,<br />

the contents of the digester increased by 25%)<br />

Charging of warm liquor into the digester tank of warm<br />

black liquor. Discharge valve closed, the digester liquor<br />

is pressed with a warm up to 5.5 bar. Chips had preimpregnation<br />

by a dilute black liquor. Excess hot black<br />

liquor from the hot black liquor tank is passed through a<br />

heater (heat transfer equipment) and used to heat white<br />

liquor and then stored in a hot white liquor accumulator.<br />

Hot white liquor and hot black liquor from the hot black<br />

liquor tank is pumped into the digester, move<br />

(displacement) warm liquor into the tank cool black<br />

liquor, weak black liquor excess is pumped into the<br />

evaporator<br />

Page 40 of 132

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!