Thermal cracking process for producing petrochemical products from
hydrocarbons
    3.
    发明授权
    Thermal cracking process for producing petrochemical products from hydrocarbons 失效
    从碳氢化合物生产石化产品的热裂解工艺

    公开(公告)号:US4613426A

    公开(公告)日:1986-09-23

    申请号:US625713

    申请日:1984-06-28

    CPC classification number: C10G47/22

    Abstract: A thermal cracking process for producing petrochemical products from hydrocarbons which comprises the steps of: burning hydrocarbons with oxygen in the presence of steam to produce a hot gas of from 1300.degree. to 3000.degree. C. comprising steam; feeding a mixture of methane and hydrogen to the hot gas in such a way that a methane/hydrogen molar ratio is over 0.05; further feeding starting hydrocarbons to the hot gas comprising the methane, hydrogen and steam so that the starting hydrocarbons containing hydrocarbon components of higher boiling points are, respectively, fed to higher temperature zones; subjecting the starting hydrocarbons to thermal cracking while keeping the cracking temperature at 650.degree. to 1500.degree. C., the total residence time at 5 to 1000 milliseconds, the pressure at 2 to 100 bars, and the partial pressure of hydrogen, after thermal cracking of a hydrocarbon comprising hydrocarbon components whose boiling point exceeds 200.degree. C., at least 0.1 bar; and quenching the resulting reaction product.

    Abstract translation: 一种用于从烃生产石油化学产品的热裂解方法,其包括以下步骤:在蒸汽存在下用氧气燃烧烃,以产生含有蒸汽的1300℃至3000℃的热气体; 以甲烷/氢摩尔比超过0.05的方式将甲烷和氢气的混合物供给到热气体中; 进一步将起始烃进料到包括甲烷,氢气和蒸汽的热气体中,使得含有较高沸点的烃组分的起始烃分别进料到较高温度区; 将起始烃进行热裂解,同时保持裂化温度在650〜1500℃,总停留时间为5〜1000毫秒,压力为2〜100巴,氢分压在热裂化后 包含沸点超过200℃,至少0.1巴的烃组分的烃; 并淬灭所得反应产物。

    Thermal cracking method for producing olefines from hydrocarbons
    4.
    发明授权
    Thermal cracking method for producing olefines from hydrocarbons 失效
    用于从烃生产烯烃的热裂解方法

    公开(公告)号:US4527002A

    公开(公告)日:1985-07-02

    申请号:US581256

    申请日:1984-02-17

    CPC classification number: C10G9/38 C10G2400/20 Y02P30/40

    Abstract: In methods of manufacturing olefines by thermally cracking hydrocarbons, there is disclosed a thermal cracking method for producing olefines from hydrocarbons, characterized in that hydrocarbon is burnt with oxygen in the presence of steam to generate a high-temperature gas containing steam of 1500.degree.-3000.degree. C.; methane and hydrogen are supplied into the high-temperature gas containing said steam, with the molar ratio of methane to hydrogen in said high-temperature gas being 0.05 or more, then hydrocarbon to be cracked is supplied into said high-temperature gas containing said methane, hydrogen and steam, so that the hydrocarbon is subjected to thermal cracking by maintaining the partial pressure of hydrogen at more than at least 0.1 bar at the outlet of a reactor, under conditions of reaction temperature, 800.degree.-1200.degree. C. and residence time in the reactor 5-300 milli second, and then the reaction product is cooled in a rapid manner.

    Abstract translation: 在通过热裂解烃制造烯烃的方法中,公开了一种用于从烃生产烯烃的热裂解方法,其特征在于在蒸汽存在下用氧气燃烧烃,以产生含有1500-3000倍蒸汽的高温气体 DEG; 将甲烷和氢气供给到含有所述蒸汽的高温气体中,所述高温气体中甲烷与氢气的摩尔比为0.05以上,则将要裂化的烃供给到含有甲烷的所述高温气体中 ,氢气和蒸汽,使得烃在反应温度为800-1200℃的条件下在反应器出口处保持大于至少0.1巴的氢分压进行热裂解,并在室温 反应器中的时间为5-300毫秒,然后将反应产物以快速方式冷却。

    Process for the selective production of petrochemical products
    5.
    发明授权
    Process for the selective production of petrochemical products 失效
    石化产品选择性生产工艺

    公开(公告)号:US4725349A

    公开(公告)日:1988-02-16

    申请号:US916363

    申请日:1986-10-07

    CPC classification number: C10G9/38 Y02P20/582

    Abstract: A process for the selective production of petrochemical products by thermal cracking is disclosed. The process includes feeding methanol to a thermal cracking atmosphere of hydrocarbons in such a way that the ratio, as carbon atoms, of methanol and at least one starting hydrocarbon is at least 0.05:1, thermally cracking the at least one starting hydrocarbon at a cracking temperature of from 650.degree. to 1300.degree. C., and quenching the resulting reaction product.

    Abstract translation: 公开了通过热裂解选择性生产石化产品的方法。 该方法包括将甲醇进料到烃的热裂解气氛中,使得甲醇和至少一种起始烃的碳原子比至少为0.05:1,在裂化过程中热裂化至少一种起始烃 温度为650℃至1300℃,并淬灭所得的反应产物。

    Thermal cracking method for producing olefins from hydrocarbons
    6.
    发明授权
    Thermal cracking method for producing olefins from hydrocarbons 失效
    用烃制造烯烃的热裂解方法

    公开(公告)号:US4520224A

    公开(公告)日:1985-05-28

    申请号:US473761

    申请日:1983-03-09

    CPC classification number: C10G47/22 C10G2400/20 Y02P30/40

    Abstract: A thermal cracking method for producing olefins from hydrocarbons which comprises the steps of mixing said hydrocarbons with a mixed gas of methane and hydrogen in a methane/hydrogen mol ratio of 0.2 or more; prior to reaction carrying out a thermal cracking reaction under conditions such that the total concentration of methane and hydrogen is at least 40 mol % or more at the outlet of a reactor, the partial pressure of said hydrogen is 3 bars or more, the temperature at the outlet of the reactor is from 800.degree. to 1200.degree. C., and the residence time in the reactor is from 5 to 300 milliseconds; and quenching the reaction product discharged through the outlet of the reactor.

    Abstract translation: 一种用于从烃生产烯烃的热裂解方法,包括以下步骤:甲烷/氢摩尔比为0.2或更高的甲烷和氢气的混合气体; 在反应之前进行热裂解反应的条件下,在甲烷和氢的总浓度在反应器出口处至少为40摩尔%以上的条件下,所述氢的分压为3巴或更高, 反应器的出口为800〜1200℃,反应器中的停留时间为5〜300毫秒; 并使通过反应器出口排出的反应产物骤冷。

    Press-formed tablet-shape sweets
    7.
    发明授权
    Press-formed tablet-shape sweets 失效
    压片成型片状糖果

    公开(公告)号:US4168321A

    公开(公告)日:1979-09-18

    申请号:US900136

    申请日:1978-04-26

    Inventor: Toshiro Okamoto

    CPC classification number: A23G3/0289 A23G3/28

    Abstract: A press-formed tablet-shape sweet colored only on its outer surfaces by selectively applying a coloring agent after the sweet has been press-formed. The surface to be colored may be land portions or lower portions.

    Abstract translation: 在压制成型之后,通过选择性地施加着色剂,在其外表面上形成压制成型的片状甜点。 待着色的表面可以是陆地部分或下部。

    Thermal cracking process for selectively producing olefins and aromatic
hydrocarbons from hydrocarbons
    8.
    发明授权
    Thermal cracking process for selectively producing olefins and aromatic hydrocarbons from hydrocarbons 失效
    从烃中选择性生产烯烃和芳烃的热裂解方法

    公开(公告)号:US4655904A

    公开(公告)日:1987-04-07

    申请号:US621428

    申请日:1984-06-18

    CPC classification number: C10G9/38

    Abstract: A process for selectively producing olefins and aromatic hydrocarbons by thermal cracking of hydrocarbons which comprises the steps of: burning hydrocarbons with oxygen in the presence of steam to produce a hot gas of from 1300.degree. to 3000.degree. C. comprising steam; feeding a heavy hydrocarbon to the hot gas to thermally crack the heavy hydrocarbon under conditions of a temperature not lower than 1000.degree. C., a pressure not higher than 100 kg/cm.sup.2 g, and a residence time of from 5 to 20 milliseconds; further feeding a light hydrocarbon downstream of the feed of the heavy hydrocarbon in such a way that a light hydrocarbon with a lower boiling point is fed at a lower temperature side downstream of the feed of the heavy hydrocarbon, thereby thermally cracking the light hydrocarbon under conditions of a reactor outlet temperature at not lower than 650.degree. C., a pressure at not higher than 100 kg/cm.sup.2 g, and a residence time at 5 to 1000 milliseconds; and quenching the resulting reaction product.

    Abstract translation: 一种通过碳氢化合物热裂解选择性生产烯烃和芳烃的方法,包括以下步骤:在蒸汽存在下用氧气燃烧烃,以产生含有蒸汽的1300〜3000℃的热气体; 向热气体中加入重质烃,在不低于1000℃,压力不高于100kg / cm2g,停留时间为5至20毫秒的条件下热裂解重质烃; 进一步向重质烃进料下游供给轻质烃,使得在较低温度下一侧加入较低沸点的轻烃,在重烃进料下游,从而在轻质烃条件下 反应器出口温度不低于650℃,压力不高于100kg / cm2g,停留时间为5至1000毫秒; 并淬灭所得反应产物。

    Thermal cracking process for producing olefins from hydrocarbons
    9.
    发明授权
    Thermal cracking process for producing olefins from hydrocarbons 失效
    用于从烃生产烯烃的热裂解方法

    公开(公告)号:US4599479A

    公开(公告)日:1986-07-08

    申请号:US705974

    申请日:1985-02-27

    CPC classification number: C10G9/38 C10G2400/20 Y02P30/40

    Abstract: A thermal cracking process for producing olefins from hydrocarbons which comprises the steps of burning hydrocarbons with less than the theoretical amount of oxygen in the presence of steam to give a hot gas of from 1400.degree. to 300.degree. C. comprising steam and hydrogen prior to reaction; feeding to the hot gas comprising the steam and hydrogen, a mixture of methane and hydrogen so that a methane/hydrogen molar ratio in said hot gas is over 0.05; further feeding a starting hydrocarbon to the hot gas mixture comprising the methane, hydrogen and steam; subjecting the starting hydrocarbon to thermal cracking while keeping the partial pressure of hydrogen at least 0.1 bar at the outlet of a reactor, the temperature at 800.degree. to 1200.degree. C., and the residence time at 5 to 300 milliseconds; and quenching the resulting reaction product.

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