公开(公告)号：US11565937B2

公开(公告)日：2023-01-31

申请号：US16772952

申请日：2018-12-05

申请人： CASALE SA

发明人： Raffaele Ostuni ,  Ermanno Filippi

IPC分类号： C01B3/02 ,  C01B3/38

摘要： Process including the production of a hydrogen-containing synthesis gas by conversion of a hydrocarbon feedstock, wherein said process has a heat input provided by combustion of a plurality of process fuel streams and said plurality of process fuel streams comprises at least one fuel stream of ammonia. Combustion of said at least one fuel stream of ammonia is performed non-catalytically in at least one fired equipment.

公开(公告)号：US10954124B2

公开(公告)日：2021-03-23

申请号：US15035151

申请日：2014-10-13

申请人： Casale SA

发明人： Ermanno Filippi ,  Raffaele Ostuni

IPC分类号： B01J19/00 ,  C01B3/38 ,  C01B3/02 ,  C01B13/02 ,  C01C1/04 ,  C01B3/26 ,  B01J7/00 ,  C01B3/48 ,  C01B3/50

摘要： A process for producing ammonia make-up synthesis gas and a procedure for revamping a front-end of an ammonia plant for producing ammonia make-up synthesis gas are disclosed, wherein the make-up synthesis gas is produced by means of steam reforming of a hydrocarbon gaseous feedstock; said front-end includes a primary reformer, a secondary reformer, a shift conversion section, a CO2 removal section and optionally a methanation section; a shell-and-tube gas-heated reformer is installed after said secondary reformer, and a portion of the available feedstock is reformed in the tubes of said gas-heated reformer, and heat is provided to the shell side of said gas-heated reformer by at least a portion of product gas leaving the secondary reformer, possibly mixed with product gas leaving the tubes of said gas-heated reformer.

公开(公告)号：US10562768B2

公开(公告)日：2020-02-18

申请号：US14915061

申请日：2014-09-02

申请人： Casale SA

发明人： Ermanno Filippi ,  Raffaele Ostuni

IPC分类号： C01B3/34 ,  C01B3/02 ,  C01C1/04 ,  B01J7/00 ,  B01J12/00 ,  C01B3/56 ,  C01B3/48 ,  C01B3/52 ,  C01B3/38

摘要： A process and plant for producing a makeup synthesis gas (20) for the synthesis of ammonia, comprising: reforming of a hydrocarbon feedstock (10) in a steam reformer (SMR), purification of said gas product obtaining a hydrogen synthesis gas, addition of a suitable amount of nitrogen (19) to said hydrogen synthesis gas, wherein said purification includes separation of hydrogen in a main separation unit (S1), which produces a hydrogen current (14) and a tail gas (15), and wherein further hydrogen is recovered from the said tail gas (15) in an additional separation unit (S2); some embodiments provides that an amount of gas product (24) is also fed to said additional separation unit; a corresponding method for the revamping of a front-end of an ammonia plant is also disclosed.

公开(公告)号：US20190023565A1

公开(公告)日：2019-01-24

申请号：US16142592

申请日：2018-09-26

申请人： Casale SA

发明人： Ermanno Filippi ,  Francesco Baratto ,  Sergio Panza ,  Raffaele Ostuni

IPC分类号： C01B3/02 ,  C01B3/56 ,  C01B3/50 ,  C01B3/48 ,  C01B3/38

摘要： A process for producing ammonia synthesis gas from a hydrocarbon-containing feedstock, with steps of primary reforming, secondary reforming with an oxidant stream, and further treatment of the synthesis gas including shift, removal of carbon dioxide and methanation, wherein the synthesis gas delivered by secondary reforming is subject to a medium-temperature shift (MTS) at a temperature between 200 and 350.degree. C., and primary reforming is operated with a steam-to-carbon ratio lower than 2. A corresponding method for revamping an ammonia plant is disclosed, where an existing HTS reactor is modified to operate at medium temperature, or replaced with a new MTS reactor, and the steam-to-carbon ratio in the primary reformer is lowered to a value in the range 1-5-2, thus reducing inert steam in the flow rate trough the equipments of the front-end.

公开(公告)号：US10016738B2

公开(公告)日：2018-07-10

申请号：US15324982

申请日：2015-06-19

申请人： Casale SA

发明人： Ermanno Filippi ,  Enrico Rizzi

IPC分类号： B01J8/00 ,  B01J8/02

CPC分类号： B01J8/0285 ,  B01J8/0035 ,  B01J8/0214 ,  B01J8/025 ,  B01J2208/0015 ,  B01J2208/00814 ,  B01J2208/022 ,  B01J2219/182 ,  B01J2219/1943 ,  B01J2219/2453 ,  B01J2219/2458 ,  B01J2219/2462 ,  B01J2219/2481

摘要： Horizontal reactor (1) for catalytic reactions, comprising an outer cylindrical shell (2), a catalytic bed (5) and heat exchange plates (6) immersed in said catalytic bed, parallel to each other and supplied with a heat exchange fluid; said reactor comprises a container (7) for said catalytic bed (5) and said plates (6), said container is extractable slidably from said shell, by means of at least one linear guide (31, 32, 45) extended longitudinally with respect to said shell (2).

公开(公告)号：US20150008116A1

公开(公告)日：2015-01-08

申请号：US14374173

申请日：2012-11-12

申请人： Casale SA

发明人： Ermanno Filippi ,  Raffaele Ostuni

IPC分类号： C07C29/80 ,  B01D3/14 ,  B01D3/00

CPC分类号： C07C29/80 ,  B01D3/002 ,  B01D3/007 ,  B01D3/143 ,  C07C31/04 ,  Y02P70/34

摘要： Process and plant for refining crude methanol, comprising at least three distillation stages operating in cascade at decreasing pressures, wherein a first stage (200) operates at a maximum distillation pressure (p2), a second stage (300) operates at a medium distillation pressure (p3), and a final distillation stage (400) operates at a minimum distillation pressure (p4), wherein the first stage and the distillation stage each produce a respective gaseous stream (204, 304) of distilled methanol, and a respective solution containing methanol that is fed to the next distillation stage, and wherein at least one first gaseous stream of distilled methanol (204), produced in the first distillation stage, and a second gaseous stream of distilled methanol (304), produced in the second distillation stage, are used as heat sources to heat the second distillation stage and the final distillation stage, respectively.

摘要翻译： 用于精制粗甲醇的方法和装置，其包括至少三个在降低的压力下级联操作的蒸馏级，其中第一级（200）以最大蒸馏压力（p2）操作，第二级（300）在介质蒸馏压力 （p3）和最终蒸馏阶段（400）以最小蒸馏压力（p4）操作，其中第一阶段和蒸馏阶段各自产生蒸馏甲醇的相应气流（204,304），以及含有 甲醇，其进料到下一个蒸馏阶段，并且其中在第二蒸馏阶段中产生的至少一种在第一蒸馏阶段中产生的蒸馏甲醇（204）的第一气态物流和蒸馏甲醇（304）的第二气态物流 用作加热第二蒸馏阶段和最终蒸馏阶段的热源。

公开(公告)号：US11155468B2

公开(公告)日：2021-10-26

申请号：US16892433

申请日：2020-06-04

申请人： Casale SA

发明人： Raffaele Ostuni ,  Ermanno Filippi ,  Umberto Rossi

IPC分类号： C01C1/04 ,  C01B3/02 ,  C01B3/48 ,  C01B3/38

摘要： Process for the synthesis of ammonia comprising the steps of reforming of a hydrocarbon feedstock into a raw product gas, purification of said raw product gas obtaining a make-up synthesis gas, conversion of said synthesis gas into ammonia; said purification includes shift conversion of carbon monoxide into carbon dioxide and the reforming process requires a heat input which is at least partially recovered from at least one of said step of shift conversion, which is carried out with a peak temperature of at least 450° C., and said step of conversion into ammonia.

公开(公告)号：US10647587B2

公开(公告)日：2020-05-12

申请号：US15552054

申请日：2016-01-27

申请人： Casale SA

发明人： Ermanno Filippi ,  Raffaele Ostuni

IPC分类号： C01C1/04 ,  C01B3/02 ,  C22C38/40 ,  C22C38/00 ,  B01J8/06

摘要： Process and plant for the synthesis of ammonia from a hydrocarbon feedstock, comprising: primary reforming with steam and air-fired secondary reforming wherein primary reforming is performed at a temperature and pressure of at least 790° C. and 50 bar, and secondary reforming is carried out substantially in absence of excess air, the so obtained make-up synthesis gas having a H2 to N2 molar ratio in the range 2.5 to 3.

公开(公告)号：US10464818B2

公开(公告)日：2019-11-05

申请号：US15637547

申请日：2017-06-29

申请人： Casale SA

发明人： Ermanno Filippi ,  Marco Badano ,  Geoffrey Frederick Skinner

IPC分类号： C01C1/04 ,  C01B3/02 ,  C01B3/38 ,  C01B3/48 ,  C01B3/50 ,  C01B3/52 ,  C01B3/56 ,  C01B3/58

摘要： A process for producing ammonia synthesis gas from the reforming of hydrocarbons with steam in a primary reformer (1) equipped with a plurality of externally heated catalytic tubes and then together with air in a secondary reformer (2) is characterized in that the reaction of said hydrocarbons with said steam in said primary reformer (1) is performed at an operating pressure of more than 35 bar in the catalytic tubes, in that air is added to said secondary reformer in excess over the nitrogen amount required for ammonia synthesis and in that the excess of nitrogen is removed downstream the secondary reformer preferably by cryogenic separation or by molecular sieves of the TAS or PSA type. This process allows to obtain high synthesis gas production capacities and lower investment and energy costs.

公开(公告)号：US20180266758A1

公开(公告)日：2018-09-20

申请号：US15527989

申请日：2015-11-25

申请人： Casale SA

发明人： Ermanno Filippi ,  Raffaele OSTUNI

IPC分类号： F25J3/02 ,  C01C1/04

摘要： Process for the synthesis of ammonia from a make-up gas containing hydrogen and nitrogen, said process comprising: generation of a synthesis gas (8) containing hydrogen and nitrogen in a molar ratio lower than 3, inside a front-end section (2); a first cryogenic purification, designed to remove nitrogen and raise said molar ratio; conversion of the synthesis gas into ammonia (13) inside a high-pressure synthesis loop (6), with extraction from said loop of a purge stream (14) containing hydrogen and inert gases; wherein at least a portion of said purge stream (14) undergoes a further purification in order to recover at least part of the hydrogen contained therein, obtaining at least one stream (15, 15a, 16, 18) containing recovered hydrogen which is recycled to the process.