Corrosion and microbial control in hydrocarbonaceous compositions

a technology of hydrocarbonaceous compositions and corrosion control, applied in the direction of biocide, fuels, animal husbandry, etc., can solve the problems of fuel biodegradation, microbial contamination, and growth at the expense of hydrocarbon and non-hydrocarbon components

Inactive Publication Date: 2010-09-30
DOW GLOBAL TECH LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]The invention further provides a method of providing microbial resistance to a biodiesel fuel, the method comprising including in the biodiesel fuel an effective amount of an aminoalcohol of formula I.

Problems solved by technology

The presence of water in hydrocarbonaceous compositions, either through deliberate introduction (e.g. emulsified fuel), or through condensation (e.g. in storage or transportation vessels), can, however, lead to problems.
Because microbes depend on water for survival, water in the hydrocarbonaceous compositions can cause microbial contamination.
Consequently, some species attack the compositions directly, growing at the expense of hydrocarbon and non-hydrocarbon components.
The biodegradation of fuel, in support of microbial growth, is a direct cause of fuel contamination.
In addition to loss of additive and fuel performance, as bacteria and fungi reproduce, they form biomass, which accumulates at the fuel:water interface, on tank surfaces and on filters.
While removal of sulfur and acids from fuel is possible, this introduces additional process costs for the fuel manufacturer.
In crude oil, in addition to microbiologically influenced corrosion, the presence of dissolved carbon dioxide (carbonic acid) and / or hydrogen sulfide can also lead to corrosion issues.

Method used

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  • Corrosion and microbial control in hydrocarbonaceous compositions
  • Corrosion and microbial control in hydrocarbonaceous compositions
  • Corrosion and microbial control in hydrocarbonaceous compositions

Examples

Experimental program
Comparison scheme
Effect test

example 1

Preparation of 3-amino-4-octanol

[0091]Preparation of the 3-nitro-4-octanol from 1-nitropropane and valeraldehyde. A sample of 3-nitro-4-octanol is synthesized by the addition of 1-nitropropane (1-NP, 300 g, 3.37 mols) into a 1 liter 3-necked round-bottomed flask (RBF, 24 / 40, 29 / 42, 24 / 40) equipped with a thermocouple, a magnetic stirrer, a 500 ml addition funnel, a nitrogen inlet, and a glass stopper. This light yellow liquid is diluted by the addition of methanol (MeOH, 150 g) that results in an endotherm. The caustic catalyst is added (16 g of a 10% aqueous solution and 0.60 g of a 50% aqueous caustic solution, 1.9 g total, 1.4 mole %). This changes the reaction color to orange and results in a slight exotherm. The valeraldehyde (258 g, 3.00 mols, 0.89 equivalents) is charged to the addition funnel and slowly added to the 1-NP over 3 h. The heat of reaction raises the temperature to 40-45° C. Once the valeraldehyde addition is complete, the contents of the RBF are transferred into...

example 2

Preparation 2-amino-3-heptanol

[0093]Preparation of the 2-nitro-3-heptanol from nitroethane (NE) and valeraldehyde. In a similar fashion as Example 1, a sample of 2-nitro-3-heptanol is synthesized by the addition of nitroethane (NE, 275 g, 3.67 mols) into a 1 liter 3-necked round-bottomed flask (RBF, 24 / 40, 29 / 42, 24 / 40) equipped with a thermocouple, a magnetic stirrer, a 500 ml addition funnel, a nitrogen inlet, and a glass stopper. The clear, colorless liquid is diluted by the addition of 95% ethanol (EtOH, 160 g) that results in an endotherm. The caustic catalyst is added (10 g of a 10% aqueous solution, 0.68 mole %) changing the reaction color to yellow and resulting in a slight exotherm. The valeraldehyde (258 g, 3.00 mols, 0.89 equivalents) is charged to the addition funnel and slowly added to the NE over 4 h. The heat of reaction raises the temperature to 40-45° C. Once the valeraldehyde addition is complete, the contents of the RBF are transferred into a 1 liter glass bottle,...

example 3

Preparation of 2-amino-2-methyl-3-heptanol

[0095]Preparation of the 2-methyl-2-nitro-3-heptanol from 2-nitropropane (2-NP) and valeraldehyde. In a similar fashion as example 1, a sample of 2-methyl-2-nitro-3-heptanol is synthesized by the addition of 2-nitropropane (2-NP, 300 g, 3.37 mols) into a 1 liter 3-necked round-bottomed flask (RBF, 24 / 40, 29 / 42, 24 / 40) equipped with a thermocouple, a magnetic stirrer, a 500 ml addition funnel, a nitrogen inlet, and a glass stopper. The clear, colorless liquid is diluted by the addition of absolute ethanol (EtOH, 150 g) that results in an endotherm. The caustic catalyst is added (16 g of a 10% aqueous solution and 0.6 g of a 50% aqueous solution, 1.4 mole %) changing the reaction color to light yellow and resulting in a slight exotherm. The valeraldehyde (258 g, 3.00 mols, 0.89 equivalents) is charged to the addition funnel and slowly added to the 2-NP over 3 h. The heat of reaction raises the temperature to 40-45° C. Once the valeraldehyde ad...

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Abstract

Provided are additives of formula I for use in hydrocarbonaceous compositions, such as petroleum or liquid fuels: (I) wherein R1, R2, R3, R4, and R5 are as defined herein. The additives improve the corrosion resistance of the compositions and, when the composition is biodiesel, also improve microbial resistance. The additives further enhance the antimicrobial efficacy of any added biocides contained in such compositions.

Description

FIELD OF THE INVENTION[0001]The invention relates to additives for hydrocarbonaceous compositions. More specifically, the invention relates to aminoalcohol additives that improve the corrosion properties and microbial resistance of hydrocarbonaceous compositions, such as petroleum and fuels. The aminoalcohol additives also enhance the efficacy of biocidal agents typically used in such compositions.BACKGROUND OF THE INVENTION[0002]Hydrocarbonaceous compositions, such as petroleum (crude oil) and fuels, almost always contain moisture. Additional water can accumulate in tanks as atmospheric moisture condenses. Moisture accumulates in diesel tanks, for example, as condensate droplets on exposed tank surfaces, as dissolved water in the fuel and as water bottoms beneath the fuel. Similarly for petroleum, water can condense and accumulate in pipelines. Alcohol / fuel mixtures, such as “gasohol,” tend to absorb and retain higher concentrations of water than does alcohol-free petroleum-based f...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10L1/30C10L1/222C10L1/233
CPCA01N33/08C10L10/04C10L1/1824C10L1/1832C10L1/1855C10L1/1857C10L1/19C10L1/2222C10L1/2225C10L1/2227C10L1/224C10L1/226C10L1/231C10L1/232C10L1/233C10L1/2335C10L1/2406C10L1/2431C10L1/2456C10L1/2608C10L1/303C10L1/14
Inventor TINETTI, SHEILA M.POHLMAN, JOHN L.BRUTTO, PATRICK E.COBURN, CHARLES E.GREEN, GEORGE D.SWEDO, RAYMOND J.
Owner DOW GLOBAL TECH LLC
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