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公开(公告)号：US10376859B2
公开(公告)日：2019-08-13
申请号：US15576214
申请日：2017-03-30
Applicant: STAMICARBON B.V.
IPC: B01J19/00 , B01J19/18 , B01J19/24 , B01D3/06 , B01D3/14 , B01D5/00 , C07C273/04 , C07C275/02 , B01L3/06 , B01L3/14
Abstract: The invention is directed to a urea plant with a high pressure synthesis section and a recovery section. The high pressure synthesis section comprises a reactor, a stripper and a condenser, wherein the reactor operates at a higher pressure than the stripper and the condenser. The plant further includes a compression unit between the condenser and the reactor. The compression unit utilizes mechanical energy recovered from a decompression unit positioned downstream of the stripper and upstream of the recovery section.
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公开(公告)号：US10384184B2
公开(公告)日：2019-08-20
申请号：US15669818
申请日：2017-08-04
Applicant: Stamicarbon B.V.
Inventor： Luc Louis Maria Dieltjens
IPC: B01J12/00 , C07C273/04
Abstract: The invention relates to a urea plant with a CO2 and a NH3 feed, which comprises a purge line, characterized in that the purge line is connected with a fuel gas input line of a utility plant or an NH3 plant.
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公开(公告)号：US09914107B2
公开(公告)日：2018-03-13
申请号：US14655680
申请日：2013-12-27
Applicant: Stamicarbon B.V.
IPC: B01J19/00 , B01D3/00 , C07C273/04
CPC classification number: B01J19/00 , B01D3/009 , B01J2219/00024 , B01J2219/00027 , B01J2219/0004 , B01J2219/185 , C07C273/04 , Y10T29/49718
Abstract: Disclosed is a method of increasing the capacity of an existing urea plant. With reference to the regular components of a urea plant, including a synthesis section comprising a high pressure carbamate condenser and a reactor, and a recovery section, the method comprises installing an additional reactor between the recovery section and the high pressure carbamate condenser. The additional reactor is preferably installed in connection with an ejector, so as to allow ground placement of the additional reactor.
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公开(公告)号：US09512069B2
公开(公告)日：2016-12-06
申请号：US14655330
申请日：2013-12-27
Applicant: Stamicarbon B.V.
IPC: C07C273/04 , B01J19/24 , B01J19/02
CPC classification number: C07C273/04 , B01J19/02 , B01J19/24 , B01J19/245 , B01J2219/00006 , B01J2219/00024 , B01J2219/00103 , B01J2219/00765 , B01J2219/0286 , B01J2219/24 , C07C275/02
Abstract: Disclosed is a urea plant comprising an additional reactor. With reference to the regular components of a urea plant, including a recovery section and a high pressure carbamate condenser, the additional reactor is positioned between the recovery section and the high pressure carbamate condenser. The invention also relates to a process for the synthesis of urea, comprising an additional reaction step converting, at an earlier stage than conventional, recovered carbamate into urea.
Abstract translation: 公开了一种包含另外的反应器的尿素装置。 参考包括回收部分和高压氨基甲酸酯冷凝器的尿素装置的常规部件，附加反应器位于回收部分和高压氨基甲酸酯冷凝器之间。 本发明还涉及一种用于合成尿素的方法，其包括另外的反应步骤，其比在常规方法中将回收的氨基甲酸酯转化成尿素的步骤更好。
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