p.1 

RCRA Box 1883 

Prepped by Ollie Stewart 

Document Number: 

7) ll-B-168 

Docket Number: 

A-90-19 

Printed 12/3/200810:42:10 AM Sheet 7 of 171 
A-90-19 

ll-B-168 

P.2 

MEMORANDU M 

TO: Process Vents Docket A-90-19 

FROM: Wanda Floyd 

DATE: December 1991 

SUBJECT: HON NESHAP: Industry Characteristics/ Dipropylene Glycol 

Attached is a product-process summary (PPS) for the production of Dipropylene Glycol 

via hydrolysis of propylene oxide. This is a co-product with propylene glycol and is 

references in full to propylene glycol (57556A). Information in this PPS is used as a 

basis for emissions and cost impact estimates for the HON program. 

Listed below are the key references used in developing the attached PPS. 

"Chemical Profile." In: Chemical Marketing Reporter. Schnell Publishing Company, Inc., 

New York, February 1987. 

s. iioGumesit is w w n » 

A-90-19 

ll-B-252 
P.3 

Pr 

Preparer: 

ADMINISTRATIVE NOTES 

Prodttct-Praees* Coda HOWS A 

Hours spent on this PPS °'2-5 

P-P Name (Ji^nrfu^MO, gfy<^>/ *n** Luc/n/yStS cf pTtrptJi*^ onaAe_, 

Incomplete Items (parts of 

form you cannot complete) 

Mine # and description) Date Cleared Initials 

T)if>r-*pyb*4. ^co\ 'is *- <^-/frrW<4*f (v/ frtftAt^ ali^c^f fy <Has 

prrt*45, 7~k* PPS is rtAn^c&J t*- -L^M +0 ?rop*fe+& f^j^f 

pPS 5155GA (s4n^x M^cJux/^fJ u/ / ItceffufK. <rf StcJt1. I>1 >*M 

Chemicals missing CAS numbers 

- hjry&-

Plant with Citv but no County (plant name, city, state) 
P.4 

Preparer: X-Zfti w 

Oate: '-I'liofl/T 

Reviewer: 

PRODUCT-PROCESS SUMMARY (PPS) 

Chemical Niai Atf>rajtuM^jL fyaX .____ 

Alternatm Cfcetf e*rr**|| h* Ao**-

CAS# no its 

Ref # ., Pg * ., Ref Year 

CHEMICAL SPECIFIC INFORMATION 

1.0 U.S. Production 

(Indicate the same reference information for any answers below from a 

different reference) 

1.1 WW„WWffl8t* itfHU ont) millions of ko or millions of gallons 

1.2 U^C#%etf! 

1.3 ^^Caflcf^UtllUttloil 

i»4 & $oiiii§fijji i 

j . r w m 

or i/aallon 

/ft? ~> /itr 

~7T7 A / V ? 

1.8 Comments 
P.5 

2.0 Cheaical End-Use Ref # , Pg # , Re f Year 

"** Percent 

#//y/ re*/*-} ? 

3o(u*J~j ur*ft>«-*4. jOeLi'S 4 
3.0 U.S. Producers Ref # ., Pg # ., Ref Year 

Millions of ko or millions of gallons 

3.2 Naae, Location, and Capacity 

is*!* Process Used 

(use P-P I) 

Total Capacity 
P.7 

PRODUCT-PROCESS SPECIFIC INFORMATIOH 

4.0 Potential Product-Processes (P-P) Ref # • Pg I 

Commercially % Nat'l 

{isms Viable (Y/n) capacity 

p-p 1 

P-P 2 

P-P 3 

P-P 4 

P-P 5 

P-P 6 

4.1 Documentation of P-Ps Excluded 

P-P not 

Commercially Viable Reasons 

4.2 Process described 

in th U rf$ *v' 

J 
P.8 

Air Oxidation Reaction 

Oxidation Reaction 

Alkylation Reaction 

Carbonylation Reaction 

Halogenatlon Reaction 

Condensation Reaction 

Dehydrogenation Reaction 

Dehydrohalogenatlon Reaction 

Esterification Reaction 

Hydrogenation Reaction 

Hydrohalogenatlon Reaction 

Hydroformylation Reaction 

Hydrolysis Reaction 

Nitration Reaction 

Oxyacetylation Reaction 

Oxyhalogenatlon Reaction 

Sulfonation Reaction 

Catalytic Reformation 

Hydrodimerizatlon Reaction 

Ref # , Pg I 

Generic Reaction 

4.4 Explain how you selected the reaction type in line 4.3. 
P.9 

4.5 Written Description fief*- ,

 P<%* 

In the left aargin, Indicate references and page numbers throughout written description. 
P.10 

5.0 Process Flow Diagram (attach at end of package) 

5.1 Flow Diagram Reference: Ref # , Pg # 

5.2 Comments on Flow Diagram 

5,3 9m0$'tmpmm Ref # , Pg # 

Component Types xWNff&ffl&ti^i*"*^ 

Distillation Columns 

Absorbers 

Strippers 

Reactors 

Condensers 

Vaporizers 

Others 

Total te«b*J? 
P.11 

6.0 Cheaical Data 

6.1 Balanced Cheaical Reactions Ref # ., Pg # 

6.2 Chemical Tree Ref I ., Pg # 
6.4 Stolchloaetry Ref I , Pg # 

Show calculations and assumptions and then suaaarize 1n table on next 

page. 
P.13 

6.4 Stolchloaetry Conversion Factors 

*) 

b) 

c) 

d) Con*er*f 

e) cmmi 

f) Conversion Factor Comments 

J 
P.14_ 

6.4.1 Product 

6.4.2 Raw Material^! 

#1 

#2 

#3 ; 

#4 

#5 

6.4.3 Co-Products 

#1 • 

#2 

#3 

#4 

#5 

6,4,4 BY-Products 

#i 

#2 

#3 

#4 

#5 

§,4,5 Intermediates 

#i 

#2 
P.15 

7.0 Process Vent Emission Sources 

(Y/N) 

(Y/N) Ref # ., Pg # 

7.3 Comments Ref I ., Pg # 

7.4 Reactor «T«ift*1I»tf (Y/N) Ref # ., Pg # 

7.5 Comments Ref # ., Pg # 
P.16 

(Y/N) Ref I 

7.9 Comments Ref I 

.. Pg # 

., Pg # 
P.17 

8.0 Transfer Ealsslon Sources Ref # ., Pg # 

(Y/N) 

8.2.1 Product 

8.2.2 Co-Products 

8.3 Comments Ref I ., Pg # 
P.18 

9.0 Storage Ealsslon Sources Ref # ., Rg # 

(Y/N) 

Storage Service 

Type 

9.2,1 Prpduct 

9.2.2 Co-Products 

9.2.3 Raw Materials 

9.2,4 Intermediates 

9.4 Comments 
10.0. Wastewater Ealsslon Sources 

:XiPiIi^aWB» 

10.2 Describe wastewater 

Ref # ., Pg # 

(Y/N) 

P.19 

Stream Equipment Component 

Number Producing Wastewater Coaaents on flow 

#1 

#2 

#3 

10.3 Stream Composition 

(provide only 1f readily available) 

Stream #1 

Ref # 

Steam #2 

., Pg # 

Organics Organics 

HAPs HAPs 

Water 

Other 

Water 

Other 
Stream #3 

Organics . 

HAPs 

Water 

Other 

P.20 

10.4 Comments Ref # , pg # 
P.21 

February 16,1987 

SUPPLY 

PRODUCER CAPACITY* 

Arco, Bayport, Tex. 25 

Dow, Freeport, Tex 26 

Dow, Plaquemine, La 15 

Olin, Brandenburg, Ky 6 

Union Carbide, S. Charleston, W. Va 8 

Total 80 

•Millions of pounds of DPG per year. Capacities represent byproduct capabilities of 

propylene glycol plants, although DPG can be made by reacting PG with propylene 

oxide if demand warrants. Texaco has a 5-miBton-pound-per-year DPG unit on 

standby at Port Neches, Tex. Union Carbide produces fragrance-grade only. Profile 

last published 3/19/84; this revision, 2/16/87. 

DEMAND 

1986:55 miHion pounds; 1987:56.5 million pounds; 1991:62 million pounds. 

GROWTH 

Historical (1977-1986): 0.5 percent per year; future: 2.5 percent per year 

through 1991. 

PRICE 

Historical (1952-1987): High, 45V2C. per pound, industrial grade, tanks, f.o.b. 

works; low, 12c. per pound, tanks, frt. alld. Current 40V2C. per pound, industrial 

grade, tanks, f.o.b. works. 

USES 

Unsaturated polyester resins, 55 percent; plasticizers, 30 percent; alkyd 

resins, 7 percent; hydrocarbon and fragrance extractive solvent, urethane polyols and others, 8 percent. 

STRENGTH 

DPG dibenzoate plasticizers have enjoyed double-digit growth for the last 

several years, in part due to toxicity concerns about competing phthalate-based 

plasticizers. DPG is less expensive than other polyote used in alkyd resin 

production. 

WEAKNESS 

DPG demand by polyester resin makers has not quite kept up with resin 

growth itself because of competition from lower-priced diethylene glycol. Producer inventories rose last year due to higher PG demand. 

OUTLOO K •*:*•; 

DPG output will remain a function of PG demand, as on-pufrbse production is 

unlikely in the near future. Polyester resins will remain a stable outlet forOPG; 

benzoate plasticizer applications, especially in light of recent FDA approval for 

food-contact use, should continue to grow strongly.