RU2012112641A - Производство кондиционного синтез-газа для синтеза аммиака с криогенной очисткой - Google Patents
Производство кондиционного синтез-газа для синтеза аммиака с криогенной очисткой Download PDFInfo
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- RU2012112641A RU2012112641A RU2012112641/05A RU2012112641A RU2012112641A RU 2012112641 A RU2012112641 A RU 2012112641A RU 2012112641/05 A RU2012112641/05 A RU 2012112641/05A RU 2012112641 A RU2012112641 A RU 2012112641A RU 2012112641 A RU2012112641 A RU 2012112641A
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Abstract
1. Способ получения кондиционного синтез-газа для производства аммиака, включающий стадии, на которых осуществляют:конверсию углеводородного исходного сырья (11) с последующими стадиями конверсии CO, удаления COи метанирования с получением потока (13) сырого кондиционного синтез-газа для производства аммиака, содержащего водород и азот;обработку сырого синтез-газа в секции (2) криогенной очистки с получением потока (17) очищенного синтез-газа;подачу жидкого потока (32), обогащенного азотом, при криогенной температуре в секцию криогенной очистки;обеспечение косвенного теплообмена между синтез-газом и жидким потоком, обогащенным азотом, в криогенной секции, причем поток, обогащенный азотом, по меньшей мере частично испаряют для обеспечения охлаждения криогенной секции.2. Способ по п.1, в котором жидкий поток (32), обогащенный азотом, по меньшей мере после частичного испарения в криогенной секции, получают на выходе из криогенной секции и смешивают с очищенным синтез-газом для обеспечения по меньшей мере частью азота, требуемой для корректировки соотношения водород/азот кондиционного синтез-газа для производства аммиака.3. Способ по п.1, дополнительно включающий стадию обработки воздушного потока (31) в устройстве (3) разделения воздуха с получением жидкого потока (32), обогащенного азотом, и потока (35), обогащенного кислородом.4. Способ по п.3, в котором устройство (3) разделения воздуха обеспечивает получение жидкого потока (32), обогащенного азотом, и дополнительного потока (32а), обогащенного азотом, при температуре окружающей среды и в газообразном состоянии, причем количество азота, требуемое для корректировки соотношения HN
Claims (14)
1. Способ получения кондиционного синтез-газа для производства аммиака, включающий стадии, на которых осуществляют:
конверсию углеводородного исходного сырья (11) с последующими стадиями конверсии CO, удаления CO2 и метанирования с получением потока (13) сырого кондиционного синтез-газа для производства аммиака, содержащего водород и азот;
обработку сырого синтез-газа в секции (2) криогенной очистки с получением потока (17) очищенного синтез-газа;
подачу жидкого потока (32), обогащенного азотом, при криогенной температуре в секцию криогенной очистки;
обеспечение косвенного теплообмена между синтез-газом и жидким потоком, обогащенным азотом, в криогенной секции, причем поток, обогащенный азотом, по меньшей мере частично испаряют для обеспечения охлаждения криогенной секции.
2. Способ по п.1, в котором жидкий поток (32), обогащенный азотом, по меньшей мере после частичного испарения в криогенной секции, получают на выходе из криогенной секции и смешивают с очищенным синтез-газом для обеспечения по меньшей мере частью азота, требуемой для корректировки соотношения водород/азот кондиционного синтез-газа для производства аммиака.
3. Способ по п.1, дополнительно включающий стадию обработки воздушного потока (31) в устройстве (3) разделения воздуха с получением жидкого потока (32), обогащенного азотом, и потока (35), обогащенного кислородом.
4. Способ по п.3, в котором устройство (3) разделения воздуха обеспечивает получение жидкого потока (32), обогащенного азотом, и дополнительного потока (32а), обогащенного азотом, при температуре окружающей среды и в газообразном состоянии, причем количество азота, требуемое для корректировки соотношения HN кондиционного синтез-газа для производства аммиака, частично обеспечивают испаренным жидким потоком (34), обогащенным азотом, полученным на выпуске из криогенной секции, и частично потоком (32а), обогащенным азотом, при температуре окружающей среды.
5. Способ по п.3, в котором поток (35), обогащенный кислородом, используют как дополнительный окислитель в процессе конверсии посредством ввода его в аппарат вторичной конверсии секции (1) конверсии.
6. Способ по любому из предыдущих пунктов, в котором:
охлаждают сырой синтез-газ (13) до криогенной температуры в главном теплообменнике (201) криогенной секции (2) с получением охлажденного сырого синтез-газа (14);
подают охлажденный сырой синтез-газ (14) в контактное устройство (202), в котором криогенным сжижением получают жидкую фракцию (19), содержащую загрязнения, и отделяют из синтез-газа;
получают очищенный синтез-газ (15) из контактного устройства (202) и дополнительно подвергают охлаждению и очистке в холодильнике (203), который охлаждают по меньшей мере частичным испарением жидкого потока (32), обогащенного азотом;
отбирают дополнительно очищенный синтез-газ (16) на выходе из холодильника и повторно нагревают в главном теплообменнике (201) посредством теплообмена с входящим сырым синтез-газом (13) и испаренным потоком (33) азота, отобранным из упомянутого холодильника.
7. Способ по п.6, в котором жидкую фракцию, содержащую загрязнения, дополнительно используют как охлаждающую среду (20) для главного теплообменника (201) криогенной секции (2).
8. Способ по п.1, в котором жидкий поток, обогащенный азотом, и/или поток, обогащенный азотом, при температуре окружающей среды, по существу представляют собой чистый азот.
9. Установка для получения кондиционного синтез-газа для производства аммиака, содержащая:
головную секцию, включающую секцию (1) конверсии, приспособленную для осуществления конверсии углеводородного исходного сырья и получения потока сырого синтез-газа для производства аммиака;
секцию (2) криогенной очистки для обработки сырого синтез-газа, полученного в головной секции;
средства подачи жидкого потока (32), обогащенного азотом, при криогенной температуре в секцию криогенной очистки для использования в качестве теплообменной среды для охлаждения секции криогенной очистки;
по меньшей мере один теплообменник (203, 201), предназначенный для косвенного теплообмена между синтез-газом и жидким потоком, обогащенным азотом, в криогенной секции (2), и выполненный с возможностью по меньшей мере частичного испарения в нем жидкого потока, обогащенного азотом, для обеспечения охлаждения криогенной секции.
10. Установка по п.9, дополнительно содержащая средства для получения испаренного потока (34), обогащенного азотом, на выходе из секции криогенной очистки и смешения этого потока, обогащенного азотом, с очищенным синтез-газом (17) для обеспечения по меньшей мере частью азота, требуемой для корректировки соотношения водород/азот кондиционного синтез-газа для производства аммиака.
11. Установка по п.9, содержащая устройство (3) разделения воздуха для обеспечения жидкого потока (32), обогащенного азотом, и второго потока (32а) азота при температуре окружающей среды для корректировки соотношения HN, и дополнительно потока (35), обогащенного кислородом, для подачи в качестве окислителя в секцию (1) конверсии.
12. Установка по п.11, в которой головная секция включает аппарат первичной конверсии, аппарат вторичной конверсии и оборудование для конверсии CO, удаления CO2 и метанирования, причем поток (35), обогащенный кислородом, подается в аппарат вторичной конверсии секции конверсии.
13. Установка по любому из пп.9-12, в которой криогенная секция (2) включает: контактное устройство, такое как колонна (202) криогенного холодильника; холодильник (203), выполненный с возможностью приема частично очищенного синтез-газа (15), полученного в контактном устройстве, и охлаждения жидким потоком (32), обогащенным азотом; главный теплообменник (201), выполненный с возможностью охлаждения входящего сырого синтез-газа (13) посредством теплообмена с одним или несколькими потоками, включающими потоки (33) азота, испаренного в упомянутом холодильнике, очищенного синтез-газа (16) и нижнего продукта (20), выходящего из контактного устройства.
14. Способ модернизации головной секции установки для производства аммиака, содержащей секцию (1) конверсии с по меньшей мере аппаратами первичной и вторичной конверсии для конверсии углеводородного исходного сырья в сырой кондиционный синтез-газ для производства аммиака, включающий по меньшей мере следующие стадии:
монтаж устройства (3) разделения воздуха, работающего параллельно с головной секцией;
обеспечение криогенной секции для обработки сырого синтез-газа, в том случае, если она отсутствовала в исходной установке;
обеспечение средств подачи жидкого потока (32), обогащенного азотом, полученного в устройстве разделения воздуха, в криогенную секцию для использования в качестве охлаждающей среды;
обеспечение подающей линии для потока (35), обогащенного кислородом, полученного в устройстве разделения воздуха, для увеличения производительности секции конверсии.
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EP09169289A EP2292554A1 (en) | 2009-09-02 | 2009-09-02 | Production of ammonia make-up syngas with cryogenic purification |
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PCT/EP2010/062417 WO2011026771A1 (en) | 2009-09-02 | 2010-08-25 | Production of ammonia make-up syngas with cryogenic purification |
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US9083020B2 (en) * | 2009-09-04 | 2015-07-14 | Lg Fuel Cell Systems Inc. | Reducing gas generators and methods for generating reducing gas |
US20150129806A1 (en) | 2013-11-08 | 2015-05-14 | Ammonia Casale Sa | Process for Producing Ammonia Synthesis Gas and a Method for Revamping a Front-End of an Ammonia Plant |
CN105314596A (zh) * | 2015-06-16 | 2016-02-10 | 浙江科技学院 | 一种甲烷二氧化碳自热重整制备合成气的方法及设备 |
EP3156363A1 (en) * | 2015-10-15 | 2017-04-19 | Casale SA | Process for making a synthesis gas by reforming of a hydrocarbon and including recovery of carbon dioxide at high pressure |
IT201600081328A1 (it) * | 2016-08-02 | 2018-02-02 | Saipem Spa | Recupero di anidride carbonica da gas di sintesi in impianti per la produzione di ammoniaca per mezzo di separazione gravimetrica |
EP3333124B1 (de) * | 2016-12-09 | 2019-06-26 | L'air Liquide, Société Anonyme Pour L'Étude Et L'exploitation Des Procédés Georges Claude | Anlage und verfahren zur erzeugung von synthesegas |
EP3333123B1 (de) * | 2016-12-09 | 2019-11-27 | L'air Liquide, Société Anonyme Pour L'Étude Et L'exploitation Des Procédés Georges Claude | Verfahren und anlage zur erzeugung von synthesegas |
US10870810B2 (en) * | 2017-07-20 | 2020-12-22 | Proteum Energy, Llc | Method and system for converting associated gas |
WO2023070161A1 (en) * | 2021-10-29 | 2023-05-04 | Fortescue Future Industries Pty Ltd | Method of producing ammonia |
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US2865864A (en) * | 1955-08-19 | 1958-12-23 | Texas Co | Process for the production of ammonia synthesis feed gas |
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DE3816401A1 (de) * | 1988-05-13 | 1989-11-16 | Linde Ag | Verfahren zur reinigung von rohgas fuer die ammoniaksynthese |
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EP2292554A1 (en) | 2011-03-09 |
WO2011026771A1 (en) | 2011-03-10 |
RU2558579C2 (ru) | 2015-08-10 |
EP2473440B1 (en) | 2016-12-21 |
US10273155B2 (en) | 2019-04-30 |
CN102498058A (zh) | 2012-06-13 |
CN102498058B (zh) | 2016-01-20 |
US20160068389A1 (en) | 2016-03-10 |
US20170253481A1 (en) | 2017-09-07 |
EP2473440A1 (en) | 2012-07-11 |
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