Detailed Project Report (DPR) on Triethylene Glycol

TRIETHYLENE GLYCOL

[EIRI/EDPR/1083] J.C.: 9727US$

INTRODUCTION

Triethylene glycol is a transparent, colorless, low-volatility, moderate-viscosity, watersoluble liquid. Under normal conditions, there is no detectable odor; under high vapor concentrations, a slightly sweet odor may be detected. It is completely miscible with water and many organic liquids. Triethylene glycol has properties similar to other glycols and may be used preferentially in applications requiring a higher boiling point, higher molecular weight, or lower volatility than diethylene glycol.

The hydroxyl groups on triethylene glycol undergo the usual alcohol chemistry giving a wide variety of possible derivatives. Hydroxyls can be converted to aldehydes, alkyl halides, amines, azides, carboxylic acids, ethers, mercaptans, nitrate esters, nitriles, nitrite esters, organic esters, peroxides, phosphate esters and sulfate esters. Triethylene glycol may be used directly as a plasticizer or modified by esterification. The solubility properties of triethylene glycol are important for many applications. End-uses for triethylene glycol are numerous.

This information is offered as a guide in planning bulk storage facilities for glycols.

Glycols are generally considered to be stable, noncorrosive chemicals with high flash points. Under ordinary conditions, all of these chemicals can be stored in mild steel vessels. For long-term storage, or if trace iron contamination and the development of color are objectionable in any of the glycols, a storage vessel lined with a baked-phenolic resin, an air-drying epoxy-phenolic resin, or a vinyl resin or a stainless steel or aluminum tank is suggested. Zinc or galvanized iron is not recommended, and copper or copper alloys may cause product discoloration. This information is offered as a guide in planning bulk storage facilities for glycols. Glycols are generally considered to be stable, noncorrosive chemicals with high flash points. Under ordinary conditions, all of these chemicals can be stored in mild steel vessels. For long-term storage, or if trace iron contamination and the development of color are objectionable in any of the glycols, a storage vessel lined with a baked-phenolic resin, an air-drying epoxy-phenolic resin, or a vinyl resin or a stainless steel or aluminum tank is suggested. Zinc or galvanized iron is not recommended, and copper or copper alloys may cause product discoloration. This information is offered as a guide in planning bulk storage facilities for glycols. Glycols are generally considered to be stable, noncorrosive chemicals with high flash points. Under ordinary conditions, all of these chemicals can be stored in mild steel vessels. For long-term storage, or if trace iron contamination and the development of color are objectionable in any of the glycols, a storage vessel lined with a baked-phenolic resin, an air-drying epoxy-phenolic resin, or a vinyl resin or a stainless steel or aluminum tank is suggested. Zinc or galvanized iron is not recommended, and copper or copper alloys may cause product.

COST ESTIMATION

Plant Capacity            45 TON/Day

Land & Building (10,000 sq.mt.)    US$ 49.95 Lac

Plant & Machinery                    US$ 4.72 Lac

Working Capital for 3 Months    US$ 9.91 Lac

Total Capital Investment          US$ 67.63 Lac

Rate of Return                          65%

Break Even Point                      24%

CONTENTS

INTRODUCTION

PRODUCTION OF TRI ETHYLENE GLYCOL

MANUFACTURING PROCESSES

ETHYLENE CARBONATE PROCESS:

HALCON ACETOXYLATIN PROCESS:

TEIJIN OXYCHLORINATION PROCESS:

UNION CARBIDE SYNGAS PROCESS:

HYDROLYSIS OF ETHYLENE OXIDE:

CHEMISTRY OF THE REACTION:

PROCESS DESCRIPTION OF ETHYLENE GLYCOL PLANT

APPLICATIONS

MARKET SURVEY

ASIA IS THE LARGEST CONSUMER OF ETHYLENE OXIDE AND ETHYLENE GLYCOL

THE PRODUCTION OF ETHYLENE OXIDE AND TRIETHYLENE GLYCOL

METHOD FOR PRODUCING HIGHLY PURE TRIETHYLENE GLYCOL

METHOD FOR PRODUCING TRIETHYLENE GLYCOL

EXAMPLE 1

(1) ETHYLENE CARBONATION REACTION STEP

(2) CONSUMPTION OF UNREACTED ETHYLENE OXIDE AND PURIFICATION OF TRIETHYLENE GLYCOL

EXAMPLE 2

EXAMPLE 3

COMPARATIVE EXAMPLE 1

COMPARATIVE EXAMPLE 2

TRIETHYLENE GLYCOL PROCESS

(ABSORPTION STEP OF ETHYLENE OXIDE (STEP 1))

(CARBONATION STEP OF ETHYLENE OXIDE (STEP 2))

(STEP FOR RECOVERING CARBON DIOXIDE)

(HYDROLYSIS STEP OF ETHYLENE CARBONATES (STEP 3))

(TRIETHYLENE GLYCOL RECOVERY STEP)

EXAMPLE 1

(1) ABSORPTION OF ETHYLENE OXIDE

(2) ETHYLENE CARBONATE CONVERSION REACTION

(3) REMOVAL OF UNREACTED CARBON DIOXIDE GAS

(4) HYDROLYTIC REACTION

(5) RECOVERY OF THE REACTION PRODUCT

(6) RECYCLING OF THE ABSORBING SOLUTION

PREPARATION OF TRIETHYLENE GLYCOLS FROM ETHYLENE OXIDE

EXAMPLE

RECOVERY OF GLYCOLS FROM MIXED GLYCOL COMPOSITION BY DISTILLATION WITH ACID TREATMENT

EXAMPLE I

EXAMPLE II

ADDRESSES OF CHEMICAL SUPPLIERS/MANUFACTURERS

ETHYLENE

MEDICAL OXYGEN

TRIETHYLENE GLYCOL

SUPPLIER OF PLANT & MACHINERY

DISTILLATION COLUMNS

COOLING TOWERS & HEAT EXCHANGERS

REACTION VESSEL

DISTILLATION EQUIPMENT

CONTINUOUS EVAPORATOR

LABORATORY REACTORS

CIRCULATING PUMPS

BUBBLE CAPS MANUFACTURERS & EXPORTERS

AIR COOLED CONDENSER

VAPOUR LIQUID SEPARATOR MANUFACTURERS & EXPORTERS

APPENDIX – A:

01. PLANT ECONOMICS

02. LAND & BUILDING

03. PLANT AND MACHINERY

04. OTHER FIXED ASSESTS

05. FIXED CAPITAL

06. RAW MATERIAL

07. SALARY AND WAGES

08. UTILITIES AND OVERHEADS

09. TOTAL WORKING CAPITAL

10. TOTAL CAPITAL INVESTMENT

11. COST OF PRODUCTION

12. TURN OVER/ANNUM

13. BREAK EVEN POINT

14. RESOURCES FOR FINANCE

15. INSTALMENT PAYABLE IN 5 YEARS

16. DEPRECIATION CHART FOR 5 YEARS

17. PROFIT ANALYSIS FOR 5 YEARS

18. PROJECTED BALANCE SHEET FOR (5 YEARS)