摘要:
Hydrocarbon conversion is effected by hydrocracking a charge stock at mild cracking conditions followed by alkyl transfer typically transalkylation or disproportionation or isomerization under conditions conducive to extended catalyst life.
摘要:
A diesel fuel composition which is comprised of:(a) a major portion of a low-sulfur content diesel fuel; and(b) a minor amount, as an anti-wear lubricity additive, of a dithiophosphoric diester-dialcohol.
摘要:
The present invention provides a novel class of compounds, useful as gasoline detergent additives, comprising asymmetrical ureas of either a hydrocarbyloxypolyether amine alone, or a hydrocarbyloxypolyether amine and a tertiary aminoalkyl primary amine. The present invention also provides a motor fuel composition containing the novel asymmetrical ureas and further provides a method of synthesizing the asymmetrical ureas of the present invention.
摘要:
A method of stabilizing a diesel fuel formulation by substantially minimizing the oxidation thereof is disclosed. In particular, at least one amine containing copolymer is incorporated into the diesel fuel formulation in an amount sufficient to improve the storage stability and, also, substantially minimize the oxidation thereof. The method of this invention is particularly well suited for substantially minimizing the high temperature oxidation of diesel fuels.
摘要:
A stable middle distillate fuel-oil composition which comprises(a) a major portion of a middle distillate fuel-oil; and(b) a minor amount, as a storage stabilizing additive, of N(4-anilinophenyl)succinimide of a copolymer and maleic anhydride graft.
摘要:
Hydrocarbon fuels heavier than gasoline may be extended by addition thereto of ether or ester fuel extenders, soluble in the hydrocarbon fuel, having a molecular weight of about 65-200 and characterized by the presence of at least one methoxy group or ethoxy group. The product is a single-phase mixture which is free of methanol or ethanol.
摘要:
Low pour, low sulfur fuel oils are prepared by thermally cracking a high sulfur, high pour point atmospheric residuum and blending the product with a high wax, low sulfur, high pour point atmospheric residuum. The pour point may be lowered further by the addition of a pour point depressant.
摘要:
The present invention provides a novel class of compounds, useful as gasoline detergent additives, comprising hydrocarbyloxypolyether allophonate esters of 2-hydroxy ethane. The present invention also provides a motor fuel composition containing the novel allophonate esters and further provides a method of synthesizing the allophonate esters of the present invention.
摘要:
A diesel fuel composition comprising a major portion of a middle distillate fuel oil and a minor portion, effective to clean deposits from diesel fuel injectors, of a diesel fuel detergent comprising the reaction product of:(a) a 4-alkyl-2-morpholinone represented by the formula: ##STR1## in which R represents a monovalent aliphatic radical having from 1 to 10 carbon atoms, and(b) an alkylphenoxypolyoxyalkylene amine represented by the formula: ##STR2## in which R' represents a hydrocarbyl radical having from 4 to 30 carbon atoms, x has a value from 5 to 50, and R" represents a methyl radical or a mixture of hydrogen and methyl radicals.A method of cleaning diesel fuel injectors is also provided.