Homogenous catalytic composition for improving LPG combustion
AssigneeHindustan Petroleum Corporation Limited
InventorsSandip Bhowmik, Krishnamurthy Narayanan, Soniya Naik, Balasubramaniam Ravi
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Abstract
The present invention discloses a homogenous cerium (Ce) catalyst composition comprising Ce(IV) complex alone, or Ce(IV) complex in a mixture with Ce(III) complex, that can significantly improve both LPG and soot combustion, resulting in higher flame temperatures, faster heating, reduced cooking time and reduced fuel consumption. The cerium(III) complex is cerium(III) 2-ethylhexanoate and the cerium(IV) complex is aqua(2-N-(2-hydroxyethylimino)-4-pentanoate) dinitrocerium(IV) [Ce(L1)(H2O)(NO3)2], wherein L1 is 2-N-(2-hydroxyethylimino)-4-pentanone.
Claims10
A homogenous catalyst composition for improving liquefied petroleum gas (LPG) combustion, the composition comprising:
- a cerium(IV) complex alone;
- or
- a cerium(IV) complex in a mixture with a cerium(III) complex,
- wherein the cerium(III) complex is cerium(III) 2-ethylhexanoate;
- and
- wherein the cerium(IV) complex is aqua(2-N-(2-hydroxyethylimino)-4-pentanoate)dinitrocerium(IV) [Ce(L1)(H2O)(NO3)2],
- wherein L1 is 2-N-(2-hydroxyethylimino)-4-pentanone.
A process for preparation of a homogenous catalyst composition for improving liquefied petroleum gas (LPG) combustion, the process comprising:
- (a) synthesis of 2-N-(2-hydroxyethylimino)-4-pentanone (L1) by reacting acetyl acetone and ethanol amine in methanol solution and stirring for 24 hours;
- (b) synthesis of aqua(2-N-(2-hydroxyethylimino)-4-pentanoate)dinitrocerium (IV) [Ce(L1)(H2O)(NO3)2] by reacting L1 and Ce(NO3)3·6H2O in dimethylformamide solvent at 150° C. and keeping for 15 hours;
- (c) synthesis of tetraacetylacetonate cerium (IV) [Ce(acac)4] by reacting acetyl acetone, triethyl amine and Ce(NO3)3·6H2O in methanol solution at 45° C. for 15 hours;
- (d) synthesis of cerium(III) 2-ethylhexanoate by reacting sodium 2-ethylhexanoate and cerium nitrate hexahydrate and stirring for 5 hours;
- and
- (e) preparation of a mixture of cerium(III) and cerium(IV) complex comprising cerium(III) 2-ethylhexanoate and aqua(2-N-(2-hydroxyethylimino)-4-pentanoate)dinitrocerium(IV) [Ce(L1)(H2O)(NO3)2].
A process for preparation of a homogenous catalyst composition doped liquefied petroleum gas (LPG), the process comprising:
- (a) mixing cerium(III) 2-ethylhexanoate along with aqua(2-N-(2-hydroxyethylimino)-4-pentanoate)dinitrocerium(IV) [Ce(L1)(H2O)(NO3)2] in hexane to form a solution,
- wherein L1 is 2-N-(2-hydroxyethylimino)-4-pentanoate;
- and
- (b) adding the solution of step (a) to liquefied petroleum gas (LPG) in a compressed gas cylinder.
Dependencies are inferred from the claim text.