[특허]Visbreaking a heavy hydrocarbon feedstock in a regenerable molten medium in the presence of hydrogen

Visbreaking a heavy hydrocarbon feedstock in a regenerable molten medium in the presence of hydrogen 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C10G-013/06 B01J-035/12 B01J-021/02 B01J-023/04
출원번호	US-0553492 (1975-02-27)
발명자 / 주소	King Laurence F. (Mooretown CA) Gaspar Noel J. (Sarnia CA) Pasternak Israel S. (Sarnia CA)
출원인 / 주소	Exxon Research and Engineering Company (Linden NJ 02)
인용정보	피인용 횟수 : 55 인용 특허 : 0

초록 ▼

Heavy hydrocarbon feedstocks, such as atmospheric and vacuum residua, heavy crude oils and the like, are converted to predominantly liquid hydrocarbon products by contacting said feedstocks in the presence of hydrogen with a regenerable alkali metal carbonate molten medium containing a glass-forming oxide, such as boron oxide, at a temperature in the range of from above about the melting point of said molten medium to about 1000°F. and at elevated pressures. Preferably, the regenerable molten medium comprises an oxide of boron in combination with a mixture of sodium and lithium carbonate or a mixture of sodium carbonate, potassium carbonate and lithium carbonate. The carbonaceous materials (coke) which are formed in the molten medium during the above-described conversion process are gasified by contacting said carbonaceous materials with a gaseous stream containing oxygen, steam, or carbon dioxide at temperatures of from above about the melting point of said medium to about 2000°F. in order to gasify said carbonaceous materials and thereby regenerate the molten medium. The conversion of a heavy hydrocarbon feedstock by the above-described process reduces the viscosity of the feedstock and thereby produces increased proportions of predominantly liquid hydrocarbon products of the motor fuel range, fuel oils and lubricant basestocks.

대표청구항 ▼

A process for converting a heavy hydrocarbon feedstock at least a portion of which boils above about 650°F. at atmospheric pressure to lighter hydrocarbon materials which comprises contacting said feedstock in the presence of hydrogen with a regenerable alkali metal carbonate molten medium containing from 0.1 to 25 weight percent, calculated as oxide and based on total molten medium, of a glass-forming oxide selected from the group consisting of oxides of boron, phosphorus, vanadium, silicon, tungsten and molybdenum, and thereby suppressing the formation of carbonaceous materials, at a temperature in the range of from about the melting point of said medium to less than about 1000°F. and at elevated pressures for a time sufficient to form lighter hydrocarbon materials and carbonaceous materials, said carbonaceous materials being suspended uniformly throughout the molten medium.

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Visbreaking a heavy hydrocarbon feedstock in a regenerable molten medium in the presence of hydrogen 원문보기

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