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RU2018108151A - Новый способ производства метанола из низкокачественного синтетического газа - Google Patents

Новый способ производства метанола из низкокачественного синтетического газа Download PDF

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RU2018108151A
RU2018108151A RU2018108151A RU2018108151A RU2018108151A RU 2018108151 A RU2018108151 A RU 2018108151A RU 2018108151 A RU2018108151 A RU 2018108151A RU 2018108151 A RU2018108151 A RU 2018108151A RU 2018108151 A RU2018108151 A RU 2018108151A
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methanol
gas
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RU2018108151A
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Хассан МОДАРРЕСИ
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Хальдор Топсеэ А/С
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Claims (21)

1. Способ производства метанола из синтетического газа, включающего следующие стадии:
предоставление свежего сжатого газа для синтеза метанола, содержащего водород, монооксид углерода и диоксид углерода, который предварительно нагревают и пропускают через метанольный предварительный конвертер/предохранительный реактор, в котором синтетический газ частично конвертируют в метанол в присутствии гетерогенного метанольного катализатора, а ядовитые примеси из подаваемого газа удаляют,
предоставление рециркуляционного газового потока, содержащего частично конвертированный газ для синтеза метанола, и смешивание части рециркуляционного потока со свежим синтетическим газом, если это необходимо, как в случае частичной загрузки, в поток технологического газа,
охлаждение потока технологического газа из предварительного конвертера/предохранительного реактора до температуры, допустимой для основного конвертера, и подача охлажденного потока технологического газа в обычную схему синтеза метанола, и
выделение сырого метанола из схемы синтеза, в которой выходной адиабатической температурой в предварительном конвертере/предохранительном реакторе управляют посредством оперативной регулировки рециркуляционного газа, т.е. воздействием на объемную скорость подачи газа (GHSV) в предварительном конвертере.
2. Способ по п. 1, в котором предварительный конвертер/предохранительный реактор(ы) выполнен(ы) по размеру и конструкции с возможностью заводской поддержки состояния полной загрузки, обработки и конвертации подаваемого газа на входе (подпиточного газа) без риска перегрева катализатора.
3. Способ по п. 1, в котором устанавливают объемную скорость защитного газа через реактор в схеме синтеза метанола, чтобы избежать перегрева катализатора.
4. Способ по п. 1, в котором гетерогенный метанольный катализатор представляет собой медь-цинковый оксидный катализатор на алюминиевом носителе.
5. Способ по любому из пп. 1-4, в котором катализатор в предварительном конвертере/предохранительном реакторе является менее активным по отношению к синтезу метанола, но в то же время имеет высокую поглощающую способность по отношению к ядам (в основном сере, железу и хлору).
6. Компоновка реактора для осуществления способа производства метанола из синтетического газа по любому из пп. 1-5, причем указанная компоновка реактора включает:
один или несколько метанольных предварительных конвертеров/предохранительных реакторов (1), в которых синтетический газ частично конвертируется в метанол в присутствии гетерогенного катализатора,
теплообменник (2) с входным и выходным потоками,
основной метанольный конвертер (3),
основной теплообменник (4) с входным и выходным потоками,
охладитель или ряд охладителей (5),
газо-жидкостной сепаратор (6) высокого давления, который делит входной поток на сырой метанол (В) и рециркуляционный газ,
рециркуляционный компрессор (7), и
схема очистки (С).
7. Компоновка реактора по п. 6, причем компоновка реактора дополнительно включает средства (10) для задания и управления максимально возможной выходной температурой посредством холодного рециркуляционного газового потока, который вводится в предварительный конвертер(ы) (1) через входной клапан (11).
8. Компоновка реактора по п. 6, которая имеет разделитель свежего подаваемого газа (подпиточного газа), расположенный на холодной стороне, т.е. перед теплообменником (4) с входным и выходным потоками.
9. Компоновка реактора по любому из пп. 6-8, которая предоставляет возможность замены рабочего катализатора в предварительных конвертерах/предохранительных реакторах.
RU2018108151A 2015-08-12 2016-07-15 Новый способ производства метанола из низкокачественного синтетического газа RU2729077C2 (ru)

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DKPA201500464 2015-08-12
DKPA201500464 2015-08-12
PCT/EP2016/066877 WO2017025272A1 (en) 2015-08-12 2016-07-15 A novel process for methanol production from low quality synthesis gas

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EP3208258A1 (en) * 2016-02-16 2017-08-23 Fundació Privada Institut Català d'Investigació Química (ICIQ) Methanol production process
DE102017001520A1 (de) * 2017-02-15 2018-08-16 Clariant International Ltd Reaktor und Verfahren zur Maximierung der Methanolausbeute durch Einsatz von Katalysatorschichten
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