-
公开(公告)号：US11065592B2
公开(公告)日：2021-07-20
申请号：US16759116
申请日：2018-10-25
发明人： Anton Wellenhofer , Mathieu Zellhuber , Martin Schubert , Robert Birk , Celine Pichler , Helmut Fritz
摘要： In a process as disclosed according to the present invention, gases or gas mixtures used to form a reactant mixture in an at least temporarily ignitable composition are fed into a mixing chamber (11) through the passages (131) in a boundary wall (13) of the mixing chamber (11) and by means of one or more feed conduits (14) which have feed orifices (141) and extend into the mixing chamber (11), respectively. The present invention likewise provides a corresponding reactor (1).
-
公开(公告)号：US20170253540A1
公开(公告)日：2017-09-07
申请号：US15510255
申请日：2015-09-11
发明人： Torben Höfel , Helmut Fritz
CPC分类号： C07C1/20 , C07C4/04 , C07C5/25 , C07C7/04 , C07C41/06 , C10G3/42 , C10G9/36 , C10G29/205 , C10G55/04 , Y02P30/20 , C07C9/10 , C07C9/12 , C07C11/08 , C07C11/09 , C07C43/046
摘要： A method for preparing hydrocarbons is proposed, which comprises, in a catalysis unit (1) using one or more catalysis feed streams (a) containing oxygenates and/or olefins, producing a catalysis product stream (b) containing n-butane, isobutane, 1-butene, 2-butene, isobutene and hydrocarbons with more than four and/or less than four carbon atoms, and which further comprises producing a steam cracking product stream (s) in a steam cracking unit (2) using one or more steam cracking feed streams (g, n, l, r). It is provided that at least the great majority of the hydrocarbons with more than four and/or less than four carbon atoms and the isobutene is eliminated from the catalysis product stream (b) or a part thereof, whereby a stream (g, n) containing at least 5 percent by mole 1-butene and/or 2-butene is formed, and in that this stream (g, n) containing at least 5 percent by mole 1-butene and/or 2-butene or one or more streams (l, r) derived therefrom is or are used as the steam cracking feed stream or streams (g, n, l, r). The invention also relates to a corresponding apparatus (100, 200, 300).
-
3.发明申请公开(公告)号：US20160348964A1
公开(公告)日：2016-12-01
申请号：US15109960
申请日：2014-12-17
发明人： Helmut Fritz , Torben Höfel
摘要： A method for separating a hydrogen-containing hydrocarbon mixture (C2minus), which in addition to the hydrogen essentially contains hydrocarbons with two carbon atoms and methane, using a distillation column (10). Fluid (a, c, e) of the hydrocarbon mixture (C2minus) is cooled stepwise at a first pressure level, during which time first condensates (b, d) are separated from the fluid (a, c, e). Fluid (e) from the hydrocarbon mixture (C2minus) which remains gaseous after this is fed at the first pressure level into a C2 absorber (7), to which a liquid reflux (r) is added at the top, while a second condensate (f) is drawn off from the sump of the C2 absorber (7) and a gaseous top stream (g) containing predominantly methane and hydrogen is drawn off at the top of the C2 absorber (7). Fluid of the above-mentioned gaseous top stream (g) from the top of the C2 absorber (7) is cooled to a third temperature level and transferred at the first pressure level into a hydrogen separator (8) in which a methane-rich third condensate (i) is separated from the fluid of the gaseous top stream (g), leaving behind a gaseous, hydrogen-rich stream (h). Fluid of the first condensates (b, d) and fluid of the second condensate (f) is depressurized from the first pressure level to a second pressure level below the first pressure level and fed into the distillation column (10) which is operated at the second pressure level. Fluid (e) of the third condensate (i) which is separated in the hydrogen separator (8) from the fluid of the gaseous top stream (g) from the top of the C2 absorber is used as the reflux (r) added at the top of the C2 absorber (7) and transferred from the hydrogen separator to the C2 absorber solely by gravity. The invention also relates to a corresponding separating unit and a corresponding olefin apparatus.
-
4.发明申请公开(公告)号：US20150307417A1
公开(公告)日：2015-10-29
申请号：US14420643
申请日：2013-08-01
发明人： Gunther Schmidt , Stefanie Walter , Helmut Fritz
IPC分类号： C07C4/04
CPC分类号： C07C4/04 , C10G9/36 , C10G2400/20
摘要： The invention relates to a process for converting hydrocarbon feeds by thermal steamcracking to at least one olefin-containing product stream comprising at least ethylene and propylene, with at least partial conversion of a first hydrocarbon feed in at least one first cracking furnace (1) and of a second hydrocarbon feed in at least one second cracking furnace (2). According to the invention, the second hydrocarbon feed comprises predominantly hydrocarbons having a carbon number of 5 or/and 4 and consists for the most part of one or more recycled fractions (P, T) which are obtained from the product stream, and the second hydrocarbon is converted in the second cracking furnace (2) with cracking conditions that lead to a ratio of propylene to ethylene of 0.7 to 1.6 kg/kg.
摘要翻译： 本发明涉及一种通过热蒸汽裂化将烃进料转化成至少一种至少包含乙烯和丙烯的含烯烃产物流，至少部分转化至少一个第一裂解炉（1）中的第一烃进料和 的第二烃进料在至少一个第二裂解炉（2）中。 根据本发明，第二烃进料主要包含碳数为5或/和4的烃，并且大部分由从产物流获得的一种或多种再循环馏分（P，T）组成，第二烃进料 在第二裂解炉（2）中使用导致丙烯与乙烯的比例为0.7至1.6kg / kg的裂化条件转化烃。
-
公开(公告)号：US11066346B2
公开(公告)日：2021-07-20
申请号：US16603480
申请日：2018-04-06
发明人： Helmut Fritz , Christian Ernst , Tobias Sinn
摘要： The invention relates to a method (100, 200) of obtaining one or more olefins, in which, using an oxidative coupling of methane (10), a gas mixture comprising hydrogen, methane, carbon monoxide and higher-boiling hydrocarbons than methane is formed and is subjected to a low-temperature separation (1-5), characterized in that the low-temperature separation (1-5) is conducted using a rectification column (2) having a first separation region (21), a second separation region (22) arranged above the first separation region (21), and a condenser-evaporator (23), wherein the gas mixture is cooled, fed at least partly as first separation feed into the first separation region (21) and subjected to a first rectification in the first separation region (21) to form a first tops gas and a first bottoms liquid, wherein, using a first proportion of the first tops gas in the condenser-evaporator (23), a condensate which is recycled to the first separation region and, using a second proportion of the tops gas, a second separation feed which is fed into the second separation region (22) are formed, and wherein the second separation feed is subjected to a second rectification in the second separation region to form a second tops gas and a second bottoms liquid.
-
公开(公告)号：US10730810B2
公开(公告)日：2020-08-04
申请号：US16472435
申请日：2017-12-22
摘要： A process for producing an olefin having N carbon atoms is proposed in which using a dehydrogenation a process gas is formed which contains at least the olefin having N carbon atoms, a paraffin having N carbon atoms and a hydrocarbon having N−1 carbon atoms and in which using at least a portion of the process gas a separation input is formed which is subjected to a low temperature separation in which the separation input is cooled stepwise over a plurality of temperature levels and condensates are separated from the separation input, wherein the condensates are at least partly subjected to a first low temperature rectification to obtain a first gas fraction and a first liquid fraction, wherein the first gas fraction contains at least the olefin having N carbon atoms in a lower proportion than in the condensates and the hydrocarbon having N−1 in a higher proportion than in the condensates. It is provided that the first gas fraction is at least partly subjected to a second low temperature rectification using a liquid reflux containing predominantly or exclusively the hydrocarbon having N−1 carbon atoms in which the first gas fraction undergoes depletion in the olefin having N carbon atoms. A corresponding plant (100) likewise forms part of the subject matter of the invention.
-
公开(公告)号：US09630892B2
公开(公告)日：2017-04-25
申请号：US14420643
申请日：2013-08-01
发明人： Gunther Schmidt , Stefanie Walter , Helmut Fritz
CPC分类号： C07C4/04 , C10G9/36 , C10G2400/20
摘要： The invention relates to a process for converting hydrocarbon feeds by thermal steamcracking to at least one olefin-containing product stream comprising at least ethylene and propylene, with at least partial conversion of a first hydrocarbon feed in at least one first cracking furnace (1) and of a second hydrocarbon feed in at least one second cracking furnace (2). According to the invention, the second hydrocarbon feed comprises predominantly hydrocarbons having a carbon number of 5 or/and 4 and consists for the most part of one or more recycled fractions (P, T) which are obtained from the product stream, and the second hydrocarbon is converted in the second cracking furnace (2) with cracking conditions that lead to a ratio of propylene to ethylene of 0.7 to 1.6 kg/kg.
-
公开(公告)号：US09630891B2
公开(公告)日：2017-04-25
申请号：US14420633
申请日：2013-08-01
发明人： Gunther Schmidt , Helmut Fritz , Stefanie Walter
CPC分类号： C07C4/04 , C10G9/36 , C10G2400/20
摘要： The invention relates to a process for converting feeds composed of hydrocarbons by thermal steamcracking to at least one olefin-containing product stream comprising at least ethylene and propylene, with at least partial conversion of the feeds in at least one first cracking furnace (1) and in at least one second cracking furnace (2). According to the invention, a fresh feed (B) is fractionated into at least one first and one second fresh feed fraction (B1, B2), and the first fresh feed fraction (B1) is conducted at least partly into the first cracking furnace (1) and the second fresh feed fraction (B2) at least partly into the second cracking furnace (2).
-
公开(公告)号：US11130722B2
公开(公告)日：2021-09-28
申请号：US16646964
申请日：2018-09-13
摘要： Proposed is a process for producing ethylene wherein using a dehydrogenation of ethane a process gas containing at least ethane, ethylene and compounds having a lower boiling point than ethane and ethylene is formed, wherein using at least a part of the process gas a separation input is formed and subjected to a low-temperature separation (6) in which the separation input is cooled and in which one or more condensates are separated from the separation input, wherein the condensate(s) are at least partly subjected to a low-temperature rectification to obtain a gaseous first fraction and a liquid second fraction, wherein the gaseous first fraction contains at least the ethane and the ethylene in a lower proportion than in the separation input and the compounds having a lower boiling point than ethane and ethylene in a higher proportion than in the separation input. It is provided that the first fraction is at least partly subjected to a pressure swing adsorption (7) by means of which a third fraction containing predominantly or exclusively ethylene and ethane and a fourth fraction containing predominantly or exclusively methane and carbon monoxide are formed. A corresponding plant (100) likewise forms part of the subject matter of the present invention.
-
公开(公告)号：US10570338B2
公开(公告)日：2020-02-25
申请号：US15760927
申请日：2016-09-15
发明人： Helmut Fritz , Ulrike Stiglmayr
摘要： A method (100) is proposed for processing a mixture of substances which contains predominantly or solely hydrocarbons having from M to N carbon atoms, which include sulfur-containing hydrocarbons, a first feed being formed using fluid of the mixture of substances and being subjected to a first separation in which a first fraction is formed which contains predominantly or solely hydrocarbons having from X to Y carbon atoms and at least a portion of the sulfur-containing hydrocarbons contained in the first feed, and a second feed being formed using fluid of the first fraction and being subjected to a desulfurisation, in which the sulfur-containing hydrocarbons contained in the second feed are converted predominantly or completely and hydrocarbons having more than Y carbon atoms are formed as secondary products, with the result that a product mixture of the desulfurisation contains predominantly or solely hydrocarbons having from X to Y carbon atoms and the secondary products, where M is five or six, X is five or six when M is five or is six when M is six, Y is an integer of six, seven or eight, and N is an integer greater than Y. It is provided that a third feed is formed using fluid of the product mixture and is subjected to a second separation in a two-part distillation column (30) which comprises two structurally separated column parts (31, 32) and in which a second and a third fraction are formed, the second fraction containing at least the predominant portion of the secondary products contained in the third feed, and fluid of the third fraction being separated further in the two-part distillation column in a third separation. The present invention likewise relates to a corresponding system.
-
-
-
-
-
-
-
-
-
搜索结果
32 条记录 (耗时 0.017 秒)
