Back to results
US 10,947,175 B2Granted
Methods of removing carbonyl-containing organic compounds
AssigneeLyondell Chemical Technology, L.P.
InventorsLei Zhang, Daniel F. White
Life of this patent
Estimating the term…
Abstract
Provided are methods of treating a mixture, such as a hydrocarbon mixture, that includes one or more C2-C4 carbonyl containing organic compounds. The methods may include contacting a hydrocarbon mixture with an aqueous liquid including an agent. The agent may reduce the amount of one or more C2-C4 carbonyl containing organic compounds in the mixture.
Claims20
A method of treating a mixture, the method comprising:
- providing a hydrocarbon mixture comprising one or more C2-C4 carbonyl-containing organic compounds;
- and
- contacting the hydrocarbon mixture with an aqueous liquid comprising an agent, the agent comprising:
- (i) sodium sulfite (Na2SO3), (ii) sodium bisulfite (NaHSO3), (iii) sodium metabisulfite (Na2S2O5), (iv) sodium borohydride (NaBH4), (v) dimethylacetamide (CH3CN(CH3)2), or (vi) a combination thereof;
- wherein the one or more C2-C4 carbonyl-containing organic compounds comprise propanal, propenal, butanone, butenone, butanal, butenal, or a combination thereof, and
- wherein the hydrocarbon mixture and the aqueous liquid are present at a volume ratio of about 0.5:1 to about 1.5:1.
3 more elements
A method of treating a mixture, the method comprising:
- providing a hydrocarbon mixture, the hydrocarbon mixture comprising [1] about 5 wtppm to about 200 wtppm of acrolein, [2] about 5 wtppm to about 200 wtppm of 3-buten-2-one, [3] about 5 wtppm to about 200 wtppm of crotonaldehyde, or [4] a combination thereof;
- contacting the hydrocarbon mixture with an aqueous liquid comprising an agent, the agent comprising:
- (i) sodium sulfite (Na2SO3), (ii) sodium bisulfite (NaHSO3), (iii) sodium metabisulfite (Na2S2O5), (iv) sodium borohydride (NaBH4), (v) dimethylacetamide (CH3CN(CH3)2), or (vi) a combination thereof, wherein the hydrocarbon mixture and the aqueous liquid are present at a volume ratio of about 0.5:1 to about 1.5:1;
- and
- separating the hydrocarbon mixture and the aqueous liquid to form a product hydrocarbon mixture;
- wherein the product hydrocarbon mixture comprises at least one of acrolein, 3-buten-2-one, or crotonaldehyde at a concentration of 0 wtppm to about 3 wtppm.
3 more elements
A method of treating a mixture, the method comprising:
- providing a hydrocarbon mixture, the hydrocarbon mixture comprising one or more C2-C4 carbonyl-containing organic compounds, wherein at least one of the one or more C2-C4 carbonyl-containing organic compounds is present at a concentration of about 5 wtppm to about 200 wtppm;
- contacting the hydrocarbon mixture with an aqueous liquid comprising an agent, the agent comprising:
- (i) sodium sulfite (Na2SO3), (ii) sodium bisulfite (NaHSO3), (iii) sodium metabisulfite (Na2S2O5), (iv) sodium borohydride (NaBH4), (v) dimethylacetamide (CH3CN(CH3)2), or (vi) a combination thereof, and wherein the hydrocarbon mixture and the aqueous liquid are present at a volume ratio of about 0.5:1 to about 1.5:1;
- separating the hydrocarbon mixture and the aqueous liquid to form a product hydrocarbon mixture;
- wherein the product hydrocarbon mixture comprises 0 wtppm to about 3 wtppm of the C2-C4 carbonyl-containing organic compound that was present in the hydrocarbon mixture at the concentration of about 5 wtppm to about 200 wtppm.
2 more elements
Dependencies are inferred from the claim text.