NO118644B - - Google Patents

Info

Publication number

NO118644B

NO118644B NO15524564A NO15524564A NO118644B NO 118644 B NO118644 B NO 118644B NO 15524564 A NO15524564 A NO 15524564A NO 15524564 A NO15524564 A NO 15524564A NO 118644 B NO118644 B NO 118644B

Authority

NO

Norway

Prior art keywords

stage

acid

fed

sulfur dioxide

stages

Prior art date

1964-10-21

Links

• Espacenet
• Global Dossier
• Discuss

• 239000002253 acid Substances 0.000 claims description 15
• 239000003546 flue gas Substances 0.000 claims description 15
• 239000007788 liquid Substances 0.000 claims description 9
• 238000010521 absorption reaction Methods 0.000 claims description 8
• 238000010411 cooking Methods 0.000 claims description 8
• 238000004062 sedimentation Methods 0.000 claims description 8
• UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
• 239000003513 alkali Substances 0.000 claims description 4
• 238000004519 manufacturing process Methods 0.000 claims description 4
• 238000000034 method Methods 0.000 claims description 4
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
• 230000002378 acidificating effect Effects 0.000 claims description 3
• 229920002678 cellulose Polymers 0.000 claims description 3
• 239000001913 cellulose Substances 0.000 claims description 3
• 238000010979 pH adjustment Methods 0.000 claims description 3
• 239000012530 fluid Substances 0.000 claims description 2
• 150000004679 hydroxides Chemical class 0.000 claims description 2
• RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims 6
• 229910052784 alkaline earth metal Inorganic materials 0.000 claims 1
• 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims 1
• 150000001342 alkaline earth metals Chemical class 0.000 claims 1
• 238000009835 boiling Methods 0.000 claims 1
• VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 9
• 229910001862 magnesium hydroxide Inorganic materials 0.000 description 9
• 239000000347 magnesium hydroxide Substances 0.000 description 9
• 239000007789 gas Substances 0.000 description 4
• 230000000694 effects Effects 0.000 description 3
• 239000002002 slurry Substances 0.000 description 3
• 239000002585 base Substances 0.000 description 2
• 230000015572 biosynthetic process Effects 0.000 description 2
• 238000006243 chemical reaction Methods 0.000 description 2
• 229910052749 magnesium Inorganic materials 0.000 description 2
• 239000011777 magnesium Substances 0.000 description 2
• 238000011084 recovery Methods 0.000 description 2
• 230000001105 regulatory effect Effects 0.000 description 2
• LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
• FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
• 238000001816 cooling Methods 0.000 description 1
• 239000000110 cooling liquid Substances 0.000 description 1
• 230000003247 decreasing effect Effects 0.000 description 1
• 239000012467 final product Substances 0.000 description 1
• 238000010438 heat treatment Methods 0.000 description 1
• 238000002386 leaching Methods 0.000 description 1
• 238000002360 preparation method Methods 0.000 description 1
• 239000010802 sludge Substances 0.000 description 1
• 239000000126 substance Substances 0.000 description 1
• LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
• 238000005406 washing Methods 0.000 description 1