Aromatic hydrocarbon

About: Aromatic hydrocarbon is a research topic. Over the lifetime, 5814 publications have been published within this topic receiving 55499 citations. The topic is also known as: arene & arenes.

Improvement method of needle coke used refined aromatic hydrocarbon oil

Abstract: The invention relates to an improvement method of needle coke used refined aromatic hydrocarbon oil. The improvement method of the needle coke used refined aromatic hydrocarbon oil comprises the following steps: taking oil rich in aromatic hydrocarbon, heating the oil to 400-490 DEG C by a heating furnace, introducing the oil into a polymerization tower, taking the material at the bottom of the polymerization tower and introducing the material into a flash tower, taking the flashed material at the bottom of the flash tower, cooling the material to the room temperature, introducing the material into a gas-liquid separator, controlling the vacuum degree in the gas-liquid separator to be 5-10kpa, taking the material at the bottom of the gas-liquid separator, and enabling the material to flow into a refined aromatic hydrocarbon oil buffering tank to prepare the raw material which is refined aromatic hydrocarbon oil for producing needle coke. The improvement method of the needle coke used refined aromatic hydrocarbon oil is simple in process; the oil rich in aromatic hydrocarbon with low content of aromatic hydrocarbon in domestic oil refining plant is processed, the content of the aromatic hydrocarbon is increased; the prepared refined aromatic hydrocarbon oil is applicable to production of the needle coke.

Process for producing alkyl group-substituted aromatic hydrocarbons

Abstract: A process for producing alkyl group-substituted aromatic hydrocarbons, which comprises reacting an aromatic hydrocarbon (i) with an alkylating agent (ii) selected from the group consisting of an olefin, an aliphatic lower alcohol, and a alkyl halide in the presence of a mordenite zeolite catalyst treated with a fluorine-containing compound. This process enables raising the conversion of the aromatic compound and introducing a specific number of alkyl groups into specific positions of the aromatic compound. When biphenyl and propylene are used as the aromatic hydrocarbon and the alkylating agent, respectively, p,p'-diisopropylbiphenyl can be obtained in a high yield and a high selectivity.

Separation of hydrocarbon mixtures

Abstract: An extractive distillation process for separating at least one cycloalkane or aromatic hydrocarbon from at least one close-boiling alkane employs as solvent at least one N-mercaptoalkyl-2-pyrrolidone, preferably N-(β-mercaptoethyl)-2-pyrrolidone, either alone or in admixture with about 0.1-10 weight-% water. A liquid-liquid extraction process for separating at least one cycloalkane or aromatic hydrocarbon from at least one alkane employs as solvent at least one N-mercaptoalkyl-2-pyrrolidone, preferably N-(β-mercaptoethyl)-2-pyrrolidone, either alone or in admixture with about 0.1-10 weight-% water.

Catalyst composition comprising zinc compound or boron compound and hydrocarbon conversion process

Abstract: A catalyst composition, a process for producing the composition, and a hydrocarbon conversion process for converting a hydrocarbon stream such as, for example, gasoline, to olefins and C6 to C8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The catalyst composition comprises a zeolite, a promoter and optionally a binder. The process for producing the composition comprises the steps: (1) combining a zeolite with a promoter under a condition sufficient to produce a modified zeolite; and (2) steaming the modified zeolite. The hydrocarbon conversion process comprises contacting a hydrocarbon stream with the catalyst composition under a condition sufficient to effect the conversion of a hydrocarbon to an olefin and a C6 to C8 aromatic hydrocarbon.

Colored curable resin composition

Abstract: PURPOSE: A coloring hardening resin composition is provided to improve the brightness of a color filter by using a coloring agent containing a pre-determined compound and a zinc phthalocyanine compound. CONSTITUTION: A coloring hardening resin composition includes a coloring agent, a resin, a polymerizable compound, a polymerization initiator, and a solvent. The coloring agent includes a compound represented by chemical formula I and a zinc phthalocyanine compound. In chemical formula I, Z1, Z2, and L1 are respectively C1-C16 divalent aliphatic hydrocarbon groups with/without substituent, and -CH_2- in the aliphatic hydrocarbon groups is capable of being substituted with -CO- or -O-; R1 and R2 are respectively hydrogen atoms, C1-C16 monovalent saturated hydrocarbon groups with/without substituent, or C2-C18 acyl groups; A1 and A2 are respectively C6-C14 divalent aromatic hydrocarbon groups with/without substituent; and B1 and B2 are respectively C6-C14 monovalent aromatic hydrocarbon groups with/without substituent or C3-C14 monovalent hetero cyclic groups with/without substituent, and -CH_2- in the hetero cyclic groups is capable of being substituted with -CO- or -O-.