NO314343B1 - Process for Bonding Carbon Dioxide Gas (CO2) by Formation of Mineral Acid - Google Patents
Process for Bonding Carbon Dioxide Gas (CO2) by Formation of Mineral Acid Download PDFInfo
- Publication number
- NO314343B1 NO314343B1 NO20014998A NO20014998A NO314343B1 NO 314343 B1 NO314343 B1 NO 314343B1 NO 20014998 A NO20014998 A NO 20014998A NO 20014998 A NO20014998 A NO 20014998A NO 314343 B1 NO314343 B1 NO 314343B1
- Authority
- NO
- Norway
- Prior art keywords
- gas
- ammonia
- water solution
- carbon dioxide
- na2c03
- Prior art date
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims description 36
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims description 30
- 239000001569 carbon dioxide Substances 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 17
- 239000002253 acid Substances 0.000 title description 5
- 239000011707 mineral Substances 0.000 title description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 title description 4
- 230000015572 biosynthetic process Effects 0.000 title 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 79
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 33
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 30
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 26
- 239000001095 magnesium carbonate Substances 0.000 claims description 26
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 20
- 229910021529 ammonia Inorganic materials 0.000 claims description 20
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 19
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 18
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 16
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 15
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 15
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 12
- 238000001704 evaporation Methods 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 11
- 235000002639 sodium chloride Nutrition 0.000 claims description 11
- 239000011780 sodium chloride Substances 0.000 claims description 11
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 8
- 238000001179 sorption measurement Methods 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 235000017550 sodium carbonate Nutrition 0.000 claims description 6
- 235000019270 ammonium chloride Nutrition 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000009621 Solvay process Methods 0.000 claims description 4
- 238000001311 chemical methods and process Methods 0.000 claims description 4
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims 10
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims 2
- 239000001166 ammonium sulphate Substances 0.000 claims 2
- 235000011130 ammonium sulphate Nutrition 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 229910052938 sodium sulfate Inorganic materials 0.000 claims 1
- 235000011152 sodium sulphate Nutrition 0.000 claims 1
- 239000007789 gas Substances 0.000 description 17
- 235000010755 mineral Nutrition 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- LDSJFAOUMUHTKN-UHFFFAOYSA-K dimagnesium;chloride;sulfate Chemical compound [Mg+2].[Mg+2].[Cl-].[O-]S([O-])(=O)=O LDSJFAOUMUHTKN-UHFFFAOYSA-K 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 229910001607 magnesium mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
- Carbon And Carbon Compounds (AREA)
Description
Beskrivelse Description
Foreliggende oppfinnelse vedrører en fremgangsmåte for å binde karbondioksid ( C02 gass), ved at magnesiumklorid (MgC12) i vannløsning, eller magnesiumsulfat (MgS04) i vannløsning, gjennomgår en kjemisk reaksjonsprosess der det blir dannet magnesiumkarbonat (MgC03) og mineralsyre. The present invention relates to a method for binding carbon dioxide (C02 gas), in that magnesium chloride (MgC12) in water solution, or magnesium sulphate (MgS04) in water solution, undergoes a chemical reaction process in which magnesium carbonate (MgC03) and mineral acid are formed.
Det har de senere år i stadig sterkere grad blitt fokusert på reduksjon av klimagass utslipp. I forbindelse med Kyoto konferansen har bl.a. Norge vedtatt å begrense utslipp av karbondioksid (C02 gass). Dette har fått konsekvenser for de planlagte gasskraftverk i Norge, der tillatte utslipp av karbondioksid (C02 gass) vil være svært begrenset. Av denne grunn har det i lengere tid vært arbeidet med å finne frem til økonomisk lønnsomme prosesser for å redusere fremtidige karbondioksid utslipp fra nevnte planlagte gasskraftverk In recent years, there has been an increasingly strong focus on reducing greenhouse gas emissions. In connection with the Kyoto conference, i.a. Norway decided to limit emissions of carbon dioxide (C02 gas). This has had consequences for the planned gas power plants in Norway, where permitted emissions of carbon dioxide (C02 gas) will be very limited. For this reason, efforts have been made for a long time to find economically profitable processes to reduce future carbon dioxide emissions from the aforementioned planned gas power plants
Foreliggende oppfinnelse vil binde karbondioksid (C02 gass) til magnesiumklorid eller magnesiumsulfat ved at det dannes magnesiumkarbonat ( MgC03), i form av et hvitt pulver som i stor utstrekning vil ha anvendelse innen fillermarkedet. Da prosessen gir et positivt økonomisk bidrag, innebærer dette at store mengder karbondioksid kan omsettes til et meget rent percipitert magnesiumkarbonat med anvendelse som fyllstoff innen produksjon av papir, plast, maling, tetningsmiddel og gummivareindustri. Percipitert magnesiumkarbonat anvendes hovedsakelig innenfor tilsvarende markedsområder som mikronisert og percipitert kalsiumkarbonat (CaC03). Dette markedet forbruker årlig ca 10 mill. tonn mikronisert eller percipitert fillermateriale. The present invention will bind carbon dioxide (C02 gas) to magnesium chloride or magnesium sulphate by forming magnesium carbonate (MgC03), in the form of a white powder which will be widely used in the filler market. As the process makes a positive economic contribution, this means that large amounts of carbon dioxide can be converted into a very pure perceived magnesium carbonate for use as a filler in the production of paper, plastics, paints, sealants and the rubber goods industry. Precipitated magnesium carbonate is mainly used in similar market areas as micronized and precipitated calcium carbonate (CaC03). This market annually consumes approximately 10 million tonnes of micronized or percipitated filler material.
Hovedelementene i foreliggende oppfinnelse innebærer en prosess der inngående råmaterialer består av magnesiumklorid (MgC12), eventuelt magnesiumsulfat (MgS04), og karbondioksid (C02 gass), som behandles i en kjemisk prosesskjede, der det oppnås å fremstille magnesiumkarbonat (MgC03) og mineralsyre.. The main elements of the present invention involve a process where the raw materials involved consist of magnesium chloride (MgC12), possibly magnesium sulfate (MgS04), and carbon dioxide (C02 gas), which are processed in a chemical process chain, where it is achieved to produce magnesium carbonate (MgC03) and mineral acid.
I ovennevnte kjemiske prosesskjede inngår videre innsatsfaktorene ammoniakk og natriumkarbonat. Forbruket av disse innsatsfaktorene i den kjemiske prosesskjede vil imidlertid være ubetydelig, da disse resirkuleres i reaksjonsprosessene. For å drive prosessen kreves energi, hovedsakelig som varme energi i forbindelse med avdamping av ammoniakk gass i et delprosessledd. Energi delen vil imidlertid være av underordnet betydning i økonomisk prosessammenheng. The above-mentioned chemical process chain also includes the input factors ammonia and sodium carbonate. However, the consumption of these input factors in the chemical process chain will be negligible, as these are recycled in the reaction processes. To run the process, energy is required, mainly as heat energy in connection with the evaporation of ammonia gas in a partial process stage. The energy part will, however, be of subordinate importance in the economic process context.
Det oppnås i gjeldene fremgangsmåte å binde karbondioksid (C02 gass) i en prosess der magnesiumklorid, eventuelt magnesiumsulfat, omdannes til magnesiumkarbonat og mineralsyre. Gjennomsnittsprisen for magnesiumkarbonat produkter og mineralsyre utgjør ca 1000 kr/tonn mens prisen for magnesiumklorid/magnesiumsulfat utgjør ca 500 kr/tonn. Ved å binde karbondioksid som beskrevet, oppnås derved et positivt bidrag, omregnet i kr/tonn magnesiumsulfat magnesiumklorid på i størrelsesorden ca 500 kr/tonn. It is achieved in the current method to bind carbon dioxide (C02 gas) in a process where magnesium chloride, possibly magnesium sulphate, is converted into magnesium carbonate and mineral acid. The average price for magnesium carbonate products and mineral acid is approx. NOK 1,000/tonne, while the price for magnesium chloride/magnesium sulphate is approx. NOK 500/tonne. By binding carbon dioxide as described, a positive contribution is thereby achieved, converted into NOK/tonne of magnesium sulphate magnesium chloride of the order of approximately NOK 500/tonne.
Den kjemiske reaksjonsprosess for å binde karbondioksid med magnesiumklorid, hvor det dannes magnesiumkarbonat og saltsyre, består av en prosesskjede med følgende trinn The chemical reaction process for binding carbon dioxide with magnesium chloride, where magnesium carbonate and hydrochloric acid are formed, consists of a process chain with the following steps
Trinn 1 Step 1
MgC12 i en vannløsning tilsettes soda (Na2C03), hvorved det skjer en kjemisk reaksjon hvor det dannes magnesiumkarbonat (MgC03) som avfiltreres som faststoff, mens restløsningen bestående av koksalt (NaCl) i vannløsning går til adsorbsjonskammer for ammoniakk (NH3) gass. MgC12 in a water solution is added to soda (Na2C03), whereby a chemical reaction occurs where magnesium carbonate (MgC03) is formed which is filtered off as a solid, while the residual solution consisting of sodium chloride (NaCl) in water solution goes to the adsorption chamber for ammonia (NH3) gas.
Trinn 2 Step 2
Adsorbsjon av ammoniakk (NH3) gass med en vannløsning av koksalt (NaCl), fra trinn 1, og der denne løsningen tilsettes karbondioksid (C02 gass), hvorved det dannes NaHC03 som avfiltreres som faststoff. NaHC03 faststoff går deretter til konvertor der soda (Na2C03) blir dannet. (tilsvarende som i Solvay prosessen). Soda (Na2C03) resirkuleres til trinn 1 mens restløsningen bestående av NH4C1 i vannløsning går til avdampning av ammoniakk (NH3) gass. Adsorption of ammonia (NH3) gas with a water solution of common salt (NaCl), from step 1, and where carbon dioxide (C02 gas) is added to this solution, whereby NaHC03 is formed which is filtered off as a solid. NaHC03 solid then goes to converter where soda (Na2C03) is formed. (similar to the Solvay process). Soda (Na2C03) is recycled to stage 1, while the residual solution consisting of NH4C1 in water solution goes to the evaporation of ammonia (NH3) gas.
Trinn 3 Step 3
Avdamping av ammoniakkgass ved at ammoniumklorid (NH4C1) i vannløsning går til varmekjele for etter oppvarming å avgi ammoniakk (NH3 gass) der ammoniakkgassen resirkuleres til trinn 2. Restproduktet etter avdamping av ammoniakk gass består av saltsyre (HC1) i vannløsning som lagres i egen beholder. Evaporation of ammonia gas by ammonium chloride (NH4C1) in water solution going to a boiler to release ammonia (NH3 gas) after heating where the ammonia gas is recycled to step 2. The residual product after evaporation of ammonia gas consists of hydrochloric acid (HC1) in water solution which is stored in a separate container .
Reaksjonslikningene for prosesstrinnene blir som følger: The reaction equations for the process steps are as follows:
Dette gir da følgende hovedreaksjon This then gives the following main reaction
Fig.l viser et forenklet flytdiagram med utgangsråstoff i magnesiumklorid Dersom magnesiumsulfat blir anvendt i stedet for magnesiumklorid, erstattes 2C1' ioner med ett S04<2>" ion i de ovenfor beskrevne reaksjonslikninger. Fig. 2 viser et forenklet flytdiagram med magnesiumsulfat som utgangsråstoff. Fig.1 shows a simplified flow diagram with starting raw material in magnesium chloride If magnesium sulfate is used instead of magnesium chloride, 2C1' ions are replaced by one S04<2>" ion in the reaction equations described above. Fig. 2 shows a simplified flow diagram with magnesium sulfate as starting raw material.
Det henvises ellers til de selvstendige kravene. Reference is otherwise made to the independent requirements.
I det etterfølgende angis eksempel på utførelse av fremgangsmåte. In the following, an example of how to carry out the method is given.
Eksempel Example
Utgangsmaterialet som anvendes vil være MgC12 i vannløsning. Denne løsningen tilsettes soda (Na2C03) hvorved MgC03 felles ut som faststoff som frafiltreres og tørkes til et ferdig magnesiumkarbonat produkt i pulverform som lagres i bulksilo. Restløsningen består da av koksalt (NaCl) i vannløsning, som går til egen tank. NaCl i vannløsning blandes deretter med ammoniakk (NH3) gass fra egen beholder i en adsorbsjonstank. Løsningen fra adsorbsjonstanken føres derfra til karbonreaktor for gjennomblåsing av kulldioksid (C02 gass), hvor det dannes ammoniumklorid (NH4C1) og NaHC03 som faststoff, hvor faststoffet frafiltreres og konverteres til soda (NaC03), tilsvarende som i Solvay prosessen. Soda går til egen silo for deretter å resirkuleres til prosessdelen for utfelling av magnesiumkarbonat. Restløsningen etter frafiltrering av NaHC03 bestående av ammoniumklorid (NH4C1) i vannløsning, går til egen lagringstank for deretter å gå til varmekjel for avdamping av ammoniakk (NH3) gass. Ammoniakkgassen lagres på egen gassbeholder. Restproduktet etter ammoniakk avdamping består da av saltsyre (HC1) i vannløsning, som går til egen lagringstank for saltsyre. The starting material used will be MgC12 in water solution. Soda (Na2C03) is added to this solution, whereby MgC03 is precipitated as a solid which is filtered off and dried into a finished magnesium carbonate product in powder form which is stored in a bulk silo. The residual solution then consists of table salt (NaCl) in water solution, which goes to its own tank. NaCl in water solution is then mixed with ammonia (NH3) gas from a separate container in an adsorption tank. The solution from the adsorption tank is then led to a carbon reactor for blowing through carbon dioxide (C02 gas), where ammonium chloride (NH4C1) and NaHC03 are formed as a solid, where the solid is filtered off and converted to soda ash (NaC03), similar to the Solvay process. Soda goes to its own silo and is then recycled to the process section for precipitation of magnesium carbonate. The residual solution after filtering out NaHC03 consisting of ammonium chloride (NH4C1) in water solution, goes to a separate storage tank and then goes to a boiler for evaporation of ammonia (NH3) gas. The ammonia gas is stored in a separate gas container. The residual product after ammonia evaporation then consists of hydrochloric acid (HC1) in water solution, which goes to a separate storage tank for hydrochloric acid.
En tilsvarende prosessgang vil også være gjeldene når utgangsmaterialet MgC12 erstattes av magnesiumsulfat (MgS04) som alternativt utgangsmateriale, der da magnesiumkarbonat (MgC03) og svovelsyre (H2S04) blir sluttprodukter. A similar process will also apply when the starting material MgC12 is replaced by magnesium sulfate (MgS04) as an alternative starting material, where then magnesium carbonate (MgC03) and sulfuric acid (H2S04) become end products.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20014998A NO314343B1 (en) | 2001-03-01 | 2001-10-12 | Process for Bonding Carbon Dioxide Gas (CO2) by Formation of Mineral Acid |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20011070A NO20011070D0 (en) | 2001-03-01 | 2001-03-01 | Process for Binding Carbon Dioxide (CO2 Gas) by an Acid-Based Process |
| NO20014998A NO314343B1 (en) | 2001-03-01 | 2001-10-12 | Process for Bonding Carbon Dioxide Gas (CO2) by Formation of Mineral Acid |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO20014998D0 NO20014998D0 (en) | 2001-10-12 |
| NO20014998L NO20014998L (en) | 2002-09-02 |
| NO314343B1 true NO314343B1 (en) | 2003-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20014998A NO314343B1 (en) | 2001-03-01 | 2001-10-12 | Process for Bonding Carbon Dioxide Gas (CO2) by Formation of Mineral Acid |
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| Country | Link |
|---|---|
| NO (1) | NO314343B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007094691A1 (en) * | 2006-02-17 | 2007-08-23 | Enpro As | Method for handling saline water and carbon dioxide |
-
2001
- 2001-10-12 NO NO20014998A patent/NO314343B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007094691A1 (en) * | 2006-02-17 | 2007-08-23 | Enpro As | Method for handling saline water and carbon dioxide |
Also Published As
| Publication number | Publication date |
|---|---|
| NO20014998L (en) | 2002-09-02 |
| NO20014998D0 (en) | 2001-10-12 |
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