公开(公告)号：US20160258676A1

公开(公告)日：2016-09-08

申请号：US15030913

申请日：2014-10-23

Applicant: TECHNIP FRANCE

Inventor： Bruno DESTOUR ,  Yvon SIMON ,  Aurélia DADOU ,  David CHAZALLET

IPC: F25J3/02 ,  C10L3/00 ,  C10G70/04 ,  C07C7/09 ,  C07C7/00

Abstract: This method comprises: forming an expanded intermediate recirculation stream (170) from a liquid (112, 128) obtained during an upstream cooling and/or intermediate cooling step, upstream from the downstream cooling step; circulating the intermediate recirculation stream (170) at least in an upstream heat exchanger (42) to cool an upstream stream of cracked gas (102); reintroducing the reheated intermediate recirculation stream (170) in a raw cracked gas (20) upstream from at least one compressor (36, 38) of a cooling and compression stage (24). The upstream, intermediate and downstream cooling steps is carried out without a heat exchanger respectively of an upstream stream of cracked gas (102), an intermediate stream of cracked gas (114) and a downstream stream of cracked gas (140) with an external refrigeration cycle.

Abstract translation: 该方法包括：从在下游冷却步骤的上游的上游冷却和/或中间冷却步骤期间获得的液体（112,128）形成膨胀的中间再循环流（170） 至少在上游热交换器（42）中循环中间再循环流（170）以冷却裂化气体（102）的上游流; 将再加热的中间再循环流（170）重新引入来自冷却和压缩级（24）的至少一个压缩机（36,38）上游的生裂化气体（20）中。 上游，中间和下游冷却步骤分别进行裂化气体（102）的上游流，裂解气体中间流（114）和下游裂解气流（140）的热交换器，外部制冷 周期。

公开(公告)号：US20160146534A1

公开(公告)日：2016-05-26

申请号：US14900433

申请日：2014-06-25

Applicant: TECHNIP FRANCE

Inventor： Bruno DESTOUR ,  Yvon SIMON ,  Aurélia DADOU

IPC: F25J3/02 ,  C07C7/04 ,  C07C7/00

CPC classification number: F25J3/0238 ,  B01D53/002 ,  B01D53/047 ,  B01D53/1456 ,  B01D2256/24 ,  B01D2257/304 ,  B01D2257/502 ,  B01D2257/504 ,  B01D2257/80 ,  C07C7/005 ,  C07C7/04 ,  C10G70/043 ,  F25J3/0219 ,  F25J3/0233 ,  F25J3/0252 ,  F25J3/0261 ,  F25J2200/02 ,  F25J2200/74 ,  F25J2205/04 ,  F25J2205/40 ,  F25J2205/60 ,  F25J2210/04 ,  F25J2210/12 ,  F25J2215/62 ,  F25J2230/30 ,  F25J2245/02 ,  F25J2270/04 ,  F25J2270/12 ,  F25J2270/60

Abstract: This method comprises the following steps: treating a feed stream (12) to obtain a treated gas stream (60); cooling the treated gas stream (60) in a heat exchanger (34) to form at least one column feed fraction; feeding each column feed fraction into a distillation column (50); heating at least one downstream flow (106) derived from the column head stream (104) in the heat exchanger (34). The treatment step comprises the forming of an intermediate stream (20) containing at least 20 mole % ethylene and at least 20 mole % carbon monoxide, the method comprising a step to remove the carbon monoxide contained in the intermediate stream (20).

Abstract translation: 该方法包括以下步骤：处理进料流（12）以获得经处理的气流（60）; 在热交换器（34）中冷却经处理的气流（60）以形成至少一个塔进料馏分; 将每个进料馏分进料到蒸馏塔（50）中; 加热源自热交换器（34）中的塔头流（104）的至少一个下游流（106）。 处理步骤包括形成含有至少20摩尔％乙烯和至少20摩尔％一氧化碳的中间料流（20），该方法包括除去中间物流（20）中所含的一氧化碳的步骤。