GPA TP-29-2003 Hydrocarbon Water and Hydrocarbon Aqueous Amines Mutual Solubilities《碳氢化合物 水与碳氢化合物 水性氨的互溶性》.pdf
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1、Gas Processors Association 6526 E 60th Street Tulsa, OK 74145 TP 29 HYDROCARBON / WATER and HYDROCARBON / AQUEOUS AMINES MUTUAL SOLUBILITIES August 2003 FOREWORD At the 2001 Laurence Reid Gas Conditioning Conference, Mr. Jim Critchfield of Huntsman Corporation presented the paper titled “Solubility
2、 of Hydrocarbons in Aqueous Solutions of Gas Treating Amines” summarizing some data taken from previous literature, plus a considerable amount of new data taken for Huntsman by DB Robinson Research, Ltd. (now Oilphase-DBR) and The University of Calgary. There are a total of 84 new data points for th
3、e following systems. Most (70) are VLE but there are a few (14) LLE points. Propane in multiple strengths of DGA, MDEA, DIPA, DEA, MEA solutions Propylene in multiple strengths of DGA, MDEA, DIPA, DEA, MEA solutions Butane in multiple strengths of DGA, MDEA, DIPA, DEA, MEA solutions 1-Butene in mult
4、iple strengths of DGA, MDEA, DIPA, DEA, MEA solutions n-Pentane in multiple strengths of DGA, MDEA, DIPA, DEA solutions Ethane in a DGA solution Ethylene in multiple strengths of DGA solution Benzene in multiple strengths of DGA, MDEA, DIPA, DEA, MEA solutions Toluene in 4.5 M DGA, MDEA, DIPA, DEA,
5、MEA solutions P-Xylene in 4.5 M DGA, MDEA, DIPA solutions Huntsmans paper and conference presentation included several figures that summarize the data in a very clear and usable format. By permission from Huntsman, these documents are provided in Sections II and III, respectively, of this TP. The ra
6、w data is concisely formatted in pdf format and available as a 2-page table in Section IV of this TP. GPA wishes to offer special thanks to Mr. Critchfield and Huntsman Corporation for this excellent work in assimilating the previous data and collecting this new data into a composite data base, for
7、interpreting the data, and for presenting it in such a clear and usable format for the industry. Their willingness to share this valuable data and information with the GPA and the gas processing industry is commendable and appreciated. DISCLAIMER GPA publications necessarily address problems of a ge
8、neral nature and may be used by anyone desiring to do so. Every effort has been made by GPA to assure accuracy and reliability of the information contained in its publications. With respect to particular circumstances, local, state, and federal laws and regulations should be reviewed. It is not the
9、intent of GPA to assume the duties of employers, manufacturers, or suppliers to warn and properly train employees, or others exposed, concerning health and safety risks or precautions. GPA makes no representation, warranty, or guarantee in connection with this publication and hereby expressly discla
10、ims any liability or responsibility for loss or damage resulting from its use or for the violation of any federal, state, or municipal regulation with which this publication may conflict, or for any infringement of letters of patent regarding apparatus, equipment, or method so covered. “Copyright 20
11、03 by Gas Processors Association. All rights reserved. No part of this report may be reproduced without the written consent of the Gas Processors Association” TABLE OF CONTENTS I. Introduction II. 2001 Laurence Reid Gas Conditioning Conference Published Paper III. 2001 Laurence Reid Gas Conditioning
12、 Conference Presentation IV. Raw Data Developed for from Huntsman Corporation I. INTRODUCTION Accurate data on the solubility of various hydrocarbons in amines are necessary for process simulation, design, and minimum cost operation of amine treating plants. Solubility of hydrocarbons in amine solut
13、ions may be a factor in the selection of amine type. Most of the available public information on hydrocarbon solubility is limited to methane and ethane. Data for solubility of propane and heavier paraffins and aromatic compounds are lacking for most amine solutions. Taken as a whole, much of the av
14、ailable fundamental data seem contradictory. In order to help the industry to more accurately represent hydrocarbon solubility in the various products, Huntsman Corporation commissioned DB Robinson Research, Ltd. (now Oilphase - DBR) to measure hydrocarbon solubility in MEA, DEA, DGA Agent, MDEA and
15、 DIPA solutions. The project generated results for the mid-range hydrocarbons (paraffins and olefins) and for benzene, toluene and p-xylene. Analysis and presentation of the information includes data from various sources for the solubility of the hydrocarbons in water. II. 2000 LAURENCE REID GAS CON
16、DITIONING CONFERENCE Published Paper “SOLUBILITY OF HYDROCARBONS IN AQUEOUS SOLUTIONS OF GAS TREATING AMINES” SOLUBILITY OF HYDROCARBONS 1N AQUEOUS SOLUTIONS OF GAS TREATING AMINES Jim Critchfield and Pat Holub Huntsman Corporation Heng-Joo Ng DB Robinson Research Ltd. Alan E. Mather and Fang-Yuan J
17、ou University of Alberta Tom Bacon Consultant When scrubbing acid gases from hydrocarbons there is often concern about solubility of hydrocarbons in the aqueous amine solution, and about the resulting amount of hydrocarbons in the produced acid gas. Absorbed hydrocarbons will partially flash if the
18、pressure is reduced in a three-phase vessel, and the remaining hydrocarbons will strip into the acid gas. Excessive absorption of hydrocarbons may result in emission of hydrocarbon to the environment or increased cost and poorer operation of a sulfur plant. Accurate data on the solubility of various
19、 hydrocarbons in amines are necessary for process simulation, design and minimum cost operation of amine treating plants. Solubility of hydrocarbons in amine solutions may be a factor in the selection of amine type in a grass-roots design or in the expansion of an existing plant. Yet most of the ava
20、ilable public information on hydrocarbon solubility is limited to the lightest hydrocarbons (mainly methane and ethane). Data for solubility of propane and heavier paraffins are lacking for most amine solutions. Amine solutions are commonly used to scrub acid gases from olefin-containing streams in
21、refineries. Even though olefins are more soluble in water than are paraffins, very few data are available for the solubility of olefins in amine solutions. Similarly, the absorption of aromatics is of interest in amine plants, yet few data are currently available for the solubility of aromatics in a
22、mine solutions. In order to help the industry to more accurately represent hydrocarbon solubility in the various products, Huntsman commissioned DB Robinson Research, Ltd., to measure hydrocarbon solubility in MEA, DEA, DGA Agent, l MDEA and DIPA solutions. The DGA and Diglycolamine are registered t
23、rademarks of the Huntsman Corporation project generated results for the mid-range hydrocarbons (paraffins and olefins) and for benzene, toluene and p-xylene. Direct comparisons of hydrocarbon solubility between amine solutions are presented at equal molarity. Introduction Aqueous solutions of alkano
24、lamines are commonly used to remove CO2, H2S, and COS from gas and liquid hydrocarbon streams. “Alkanolamines“ are chemicals that have three functional parts. Alkanolamines contain at least one nitrogen atom. The nitrogen atom is the chemically active portion of the molecule - it is the site where a
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