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1494results about "Coke ovens" patented technology

Improvement method of needle coke used refined aromatic hydrocarbon oil

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.
Owner:SHANDONG YIDA NEW MATERIAL

Method for combination processing heavy oil by pyrolysis and gasification

The invention relates to a heavy oil processing method by combining thermal cracking and gasification. A raw material is conducted to a reactor from the bottom of a gas-solid separation region, is dispersed into oil drops through an atomizer; a lightweight component of the oil drop is volatilized to form oil gas in the falling process of the oil drops in a thermal cracking region; a heavy component is condensed to form coke, wherein the oil gas carries out thermal cracking reaction; coke particles drop into a gasification region and carry out gasification reaction at a temperature of between 800 and 1,600 DEG C to generate synthetic gas; one part of residual fine coke particles drop into an ash hopper to form clinker; the other part of the residual fine coke particles and the generated gas flow upwards together, are contacted with the descending liquid drops and carry out heat exchange; gas phase and coke in the gas-solid separation region of the upper part of the rector are separated; the separated fine coke particles re-drop into the thermal cracking region and the gasification region and continuously react; and the separated gas phase flows out of the rector, enters a subsequent separation system and is separated into synthetic gas, dry gas, liquid gas, gasoline, diesel, oil slurry and other products. The method has high gasification efficiency and reasonable utilization of heat energy and reduces energy consumption.
Owner:CHINA PETROLEUM & CHEM CORP +1

Integrated solvent deasphalting, hydrotreating and steam pyrolysis process for direct processing of a crude oil

A process is provided that is directed to a steam pyrolysis zone integrated with a solvent deasphalting zone and a hydrotreating zone to permit direct processing of crude oil feedstocks to produce petrochemicals including olefins and aromatics. The integrated solvent deasphalting, hydrotreating and steam pyrolysis process for the direct processing of a crude oil to produce olefinic and aromatic petrochemicals comprises: charging the crude oil to a solvent deasphalting zone with an effective amount of solvent for producing a deasphalted and demetalized oil stream and a bottom asphalt phase; charging the deasphalted and demetalized oil stream and hydrogen to a hydroprocessing zone operating under conditions effective to produce a hydroprocessed effluent reduced having a reduced content of contaminants, an increased paraffinicity, reduced Bureau of Mines Correlation Index, and an increased American Petroleum Institute gravity; thermally cracking the hydroprocessed effluent in the presence of steam to produce a mixed product stream; separating the mixed product stream; purifying hydrogen recovered from the mixed product stream and recycling it to the hydroprocessing zone; recovering olefins and aromatics from the separated mixed product stream; and recovering pyrolysis fuel oil from the separated mixed product stream.
Owner:SAUDI ARABIAN OIL CO

Integrated hydrotreating and steam pyrolysis process including residual bypass for direct processing of a crude oil

A process is provided that is directed to a steam pyrolysis zone integrated with a hydroprocessing zone including residual bypass to permit direct processing of crude oil feedstocks to produce petrochemicals including olefins and aromatics. The integrated hydrotreating and steam pyrolysis process for the direct processing of a crude oil to produce olefinic and aromatic petrochemicals comprises separating the crude oil into light components and heavy components; charging the light components and hydrogen to a hydroprocessing zone operating under conditions effective to produce a hydroprocessed effluent reduced having a reduced content of contaminants, an increased paraffinicity, reduced Bureau of Mines Correlation Index, and an increased American Petroleum Institute gravity; thermally cracking the hydroprocessed effluent in the presence of steam to produce a mixed product stream; separating the mixed product stream; purifying hydrogen recovered from the mixed product stream and recycling it to the hydroprocessing zone; recovering olefins and aromatics from the separated mixed product stream; and recovering a combined stream of pyrolysis fuel oil from the separated mixed product stream and heavy components from step (a) as a fuel oil blend.
Owner:SAUDI ARABIAN OIL CO
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