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    • 104. 发明公开
    • BUTADIENE EXTRACTION PROCESS
    • 丁二烯萃取工艺
    • EP2914568A1
    • 2015-09-09
    • EP13850380.0
    • 2013-10-15
    • Lummus Technology Inc.
    • SCHWINT, Kevin, JohnBRUMMER, Robert, J.
    • C07C7/08C07C11/167B01J19/24
    • B01D3/40B01D3/143B01D19/0068C07C7/08C07C11/167
    • A process for recovering 1,3-butadiene from a C
      4 fraction, where the butadiene extraction processes may be operated at an intermediate pressure using a liquid ring type compressor. The use of a liquid ring compressor, among other process options presented herein, may advantageously reduce capital and operating costs, similar to the compressorless option, while mitigating the risks associated with the higher operating temperatures and pressures associated with the compressorless option. Thus, the embodiments of the processes disclosed herein encompass the best features of the conventional design (low pressure, with a compressor) with the advantages of the compressorless design (low capital and operating cost), as well as other advantages unique to the systems disclosed herein.
    • 一种从C 4馏分中回收1,3-丁二烯的方法,其中丁二烯萃取过程可以使用液环式压缩机在中压下操作。 类似于无压缩机选项,使用液体环式压缩机以及本文中呈现的其他过程选项可以有利地降低资本和运行成本,同时减轻与无压缩机选项相关联的更高的操作温度和压力相关联的风险。 因此,本文公开的过程的实施例包括具有无压缩机设计(低资本和运行成本)的优点的常规设计(低压,具有压缩机)的最佳特征以及对于所公开的系统独特的其他优点 于此。
    • 109. 发明公开
    • VERFAHREN ZUR AUFREINIGUNG EINES RECYCLE-STROMES AUS EINER 1,3-BUTADIEN VERARBEITENDEN ANLAGE
    • 法净化循环流从一个1.3 - 丁二烯生产厂房
    • EP2800733A1
    • 2014-11-12
    • EP13700056.8
    • 2013-01-02
    • BASF SE
    • HEIDA, BerndHUGO, Randolf
    • C07C7/08C07C11/167
    • C07C7/08C07C11/167
    • A process is proposed for purifying a recycle stream (1) from an installation (A) processing 1,3-butadiene, wherein - the recycle stream (1) is divided into two substreams, namely a first substream (3) which is purified in a stripping column (K1) for prepurification of the pure 1,3-butadiene feed stream (2), obtaining a first purified recycle stream (4) which co-comprises the prepurified pure 1,3-butadiene feed stream (2), and also - a second substream (5) which is purified in an extracted distillation installation by extractive distillation using a selective solvent (6), wherein the extractive distillation installation comprises - a main scrubber (K2) which is constructed as an enrichment column, and also - a gas-stripper column (K3), with the proviso that the recycle stream (1) is divided in such a manner that a quantitative stream as large as possible is apportioned to the first substream (3), maintaining the specification requirements for the sum of all streams that are fed into the installation (A) processing 1,3-butadiene, of a fraction of 1,3-butadiene of greater than or equal to 90% by weight, based on the total weight of the C
      4 hydrocarbons of the sum of all streams fed into the installation (A) processing 1,3-butadiene.