Abstract:
A process is provided for catalytic dehydrogenation of light paraffinic hydrocarbons using a dehydrogenation catalyst and a polymer-porous solid composite membrane capable of separating hydrogen from the effluent of the dehydrogenation reaction.
Abstract:
Rubber modified styrenic oxygen scavenging compositions, films and articles are set forth. They comprise a solid continuous phase comprising a styrenic phase which has been graft polymerized onto a disperse elastomeric phase to provide a weight ratio of disperse to continuous phase of less than about 30:70. A transition metal catalyst is dispersed in the composition.
Abstract:
Poly(oxyalkylene) hydroxyaromatic ethers having formula (I), or a fuel-soluble salt thereof; where n is an integer from 5 to 100; x is an integer from 0 to 10; R1 and R2 are each independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, or lower alkoxy having 1 to 6 carbon atoms; R3 and R4 are each independently hydrogen or lower alkyl having 1 to 6 carbon atoms; R5 is an acyl group of formula (a), where y is 1, 2 or 3; R6 is a divalent hydrocarbyl radical, when y is 1, a trivalent hydrocarbyl radical, when y is 2, or tetravalent hydrocarbyl radical, when y is 3, said hydrocarbyl radicals having 1 to about 20 carbon atoms; and each Z is independently selected from the group consisting of (b) and (c) where each R7 is independently alkyl having 1 to 30 carbon atoms, phenyl aralkyl having 7 to 36 carbon atoms or alkaryl having 7 to 36 carbon atoms. The poly(oxyalkylene) hydroxyaromatic ethers of formula (I) are useful as fuel additives for the prevention and control of engine deposits.
Abstract translation:具有式(I)的聚(氧化烯)羟基芳族醚或其燃料可溶性盐; 其中n是5至100的整数; x是0至10的整数; R 1和R 2各自独立地为氢,羟基,具有1至6个碳原子的低级烷基或具有1至6个碳原子的低级烷氧基; R 3和R 4各自独立地为氢或具有1至6个碳原子的低级烷基; R5是式(a)的酰基,其中y是1,2或3; 当y为1时,当y为2时,R 6为二价烃基,当y为2时为四价烃基,当y为3时,所述烃基为1至约20个碳原子; 并且每个Z独立地选自(b)和(c),其中每个R 7独立地为具有1至30个碳原子的烷基,具有7至36个碳原子的苯基芳烷基或具有7至36个碳原子的烷芳基。 式(I)的聚(氧化烯)羟基芳族醚可用作预防和控制发动机沉积物的燃料添加剂。
Abstract:
The NOx content of FCC regenerator flue gas is reduced using a spinel/perovskite additive which maintains activity during FCC operation in the presence of high levels of sulfur oxides and oxygen. Additionally, a stabilization component may be added to enhance catalytic stability of the additive, and a cracking component may be added under conditions of low reducing agents in the regenerator flue gas.
Abstract:
A method for reforming hydrocarbons comprising coating portions of a reactor system with a material more resistant to carburization, reacting the material with metal sulfides existing in the portions of the reactor system prior to coating, fixating and removing at least a portion of the sulfur in the metal sulfides, and reforming hydrocarbons in the reactor system under conditions of low sulfur.
Abstract:
A method for dehydrogenation comprising: (i) providing a carburization and abrasion resistant protective layer to a steel portion of a dehydrogenation reactor system by (a) applying to the steel portion a metal plating, cladding or other coating of a metal effective for forming a carburization resistant protective layer, to a thickness effective to isolate the steel portion from hydrocarbons during operation while avoiding any substantial liquid metal embrittlement, and (b) forming the protective layer, anchored to the steel portion through an intermediate carbide-rich bonding layer; (ii) catalytically dehydrogenating a dehydrogenatable hydrocarbon.
Abstract:
A fuel additive composition comprising: (a) a fuel-soluble aliphatic amine selected from the group consisting of (1) a straight or branched chain hydrocarbyl-substituted amine, (2) a hydroxyalkyl substituted amine, and (3) a straight or branched chain hydrocarbyl-substituted succinimide; and (b) a polyalkyl hydroxyaromatic compound or salt thereof wherein the polyalkyl group has sufficient molecular weight and carbon chain length to render the polyalkyl hydroxyaromatic compound soluble in hydrocarbons boiling in the gasoline or diesel range.
Abstract:
A fuel additive composition comprising: (a) a poly(oxyalkylene) hydroxyaromatic ether having formula (I) or a fuel-soluble salt thereof; where R1 and R2 are each independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, or lower alkoxy having 1 to 6 carbon atoms; R3 and R4 are each independently hydrogen or lower alkyl having 1 to 6 carbon atoms; R5 is hydrogen, alkyl having 1 to 30 carbon atoms, phenyl, aralkyl or alkaryl having 7 to 36 carbon atoms, or an acyl group of formula (1), where R6 is alkyl having 1 to 30 carbon atoms, phenyl, or aralkyl or alkaryl having 7 to 36 carbon atoms; n is an integer from 5 to 100; and x is an integer from 0 to 10; and (b) a poly(oxyalkylene) amine having at least one basic nitrogen atom and a sufficient number of oxyalkylene units to render the poly(oxyalkylene) amine soluble in hydrocarbons boiling in the gasoline or diesel fuel range.
Abstract translation:一种燃料添加剂组合物,其包含:(a)具有式(I)的聚(氧化烯)羟基芳族醚或其燃料可溶性盐; 其中R 1和R 2各自独立地为氢,羟基,具有1至6个碳原子的低级烷基或具有1至6个碳原子的低级烷氧基; R 3和R 4各自独立地为氢或具有1至6个碳原子的低级烷基; R 5是氢,具有1至30个碳原子的烷基,具有7至36个碳原子的苯基,芳烷基或烷芳基,或式(1)的酰基,其中R 6是具有1至30个碳原子的烷基,苯基或芳烷基或 具有7至36个碳原子的烷芳基; n为5〜100的整数。 x为0〜10的整数。 和(b)具有至少一个碱性氮原子和足够数量的氧化烯单元的聚(氧化烯)胺,以使聚(氧化烯)胺可溶于汽油或柴油燃料范围内沸腾的烃。
Abstract:
A crystalline zeolite SSZ-37 is prepared using an N,N-dimethyl-4-azoniatricyclo (5.2.2.O(2,6)) undec-8-ene cation as a template wherein said zeolite is used in hydrocarbon conversion processes.
Abstract:
Fuel compositions containing a major amount of hydrocarbons boiling in the gasoline or diesel range and an effective deposit-controlling amount of a poly(oxyalkylene) aromatic ester having formula (I) where A1 is nitro, amino, N-alkylamino wherein the alkyl group contains 1 to 6 carbon atoms, or N,N-dialkylamino wherein each alkyl group independently contains 1 to 6 carbon atoms; R1 and R2 are independently hydrogen, hydroxy, lower alkyl, or lower alkoxy; R3 and R4 are independently hydrogen or lower alkyl, and each R3 and R4 is independently selected in each -O-CHR3-CHR4- unit; R5 is hydrogen, alkyl having 1 to 100 carbon atoms, phenyl, aralkyl having 7 to 100 carbon atoms or alkaryl having 7 to 100 carbon atoms, or an acyl group of formula (a) or (b) where R6 is alkyl having 1 to 30 carbon atoms, phenyl, aralkyl having 7 to 36 carbon atoms or alkaryl having 7 to 36 carbon atoms; R7 and R8 are independently hydrogen, hydroxy, lower alkyl, or lower alkoxy; A2 is a nitro, amino, N-alkylamino wherein the alkyl group contains 1 to 6 carbon atoms, or N,N-dialkylamino wherein each alkyl group independently contains 1 to 6 carbon atoms; n is an integer from 5 to 100; and x and y are each independently integers from 0 to 10.
Abstract translation:含有在汽油或柴油范围内沸腾的大量烃的燃料组合物和有效的沉积物控制量的具有式(I)的聚(氧化烯)芳族酯,其中A1是硝基,氨基,N-烷基氨基,其中烷基含有 1至6个碳原子,或N,N-二烷基氨基,其中每个烷基独立地包含1至6个碳原子; R 1和R 2独立地是氢,羟基,低级烷基或低级烷氧基; R 3和R 4独立地为氢或低级烷基,并且每个R 3和R 4独立地选自各-O-CHR 3 -CHR 4 - 单元; R 5是氢,具有1至100个碳原子的烷基,苯基,具有7至100个碳原子的芳烷基或具有7至100个碳原子的烷芳基,或式(a)或(b)的酰基,其中R 6是具有1至 具有7至36个碳原子的苯基,芳烷基或具有7至36个碳原子的烷芳基; R7和R8独立地是氢,羟基,低级烷基或低级烷氧基; A2是烷基含有1至6个碳原子的硝基,氨基,N-烷基氨基或N,N-二烷基氨基,其中每个烷基独立地包含1至6个碳原子; n为5〜100的整数。 并且x和y各自独立地为0至10的整数。