PPE 3 Flashcards
(18 cards)
_______ is a C6 aromatic liquid that is colorless and has a distinct sweet odor. It is highly flammable, volatile, and insoluble in water. Used primarily as a precursor to various industrially important chemicals such as ethylbenzene, cumene, cyclohexane, and nitrobenzene.
BENZENE
is a C7 aromatic liquid that is colorless, water-insoluble and has a sweet to pungent odor. It is also highly flammable and volatile. Typically used as solvent, gasoline additive, and precursors to various industrial chemicals such as polyurethane, benzoic acid, phenol, and benzaldehyde.
TOLUENE
is a colorless aromatic liquid. It is a mixture of C8 aromatics consisting of three xylene isomers (o-xylene, m-xylene, and p-xylene) and ethylbenzene. Used primarily as a solvent and precursor to polyethylene terephthalate (PET).
MIXED XYLENES
is a colorless to light yellow liquid consisting of C9 to C10 aromatics. Typically used as a solvent, fuel additive, and precursor to aromatic hydrocarbon resins
EVA-SOL
_______is an aromatics recovery technology that uses ________ to
remove benzene, toluene and xylene (BTX) from refinery, petrochemical or coke
oven aromatics streams such as catalytic reformate, pyrolysis gasoline or coke oven
light oil (COLO).
GT-BTX®
extractive distillation
which provides
optimum extractive distillation performance. GT-BTX has no special feed preparation
requirements and is capable of handling a wide-range (BTX) feedstock while
producing very high aromatics purities (99.99 wt.% plus) at high recoveries (99.9 %
plus).
Techtiv-100® extractive distillation solvent
The flow scheme of the GT-BTX process consists of 2 columns:
Extractive
Distillation Column & Solvent Recovery Column.
A portion of the overhead stream is returned to the top of the column as reflux, which washes back
any entrained solvent.
non-
aromatics hydrocarbons exit from the top
and fed at a mid-point
into the EDC. Lean solvent is fed at an upper point and selectively extracts the aromatics into the tower bottoms in a vapor/liquid distillation operation.
preheated with hot circulating solvent
from the bottom of the EDC is routed to the SRC, where the aromatics are
stripped overhead. The SRC is operated under a vacuum to reduce the boiling point at the
bottom of the column.
Rich solvent
is passed through a heat
exchanger before returning to the EDC,
Lean solvent from the bottom of the SRC
grades exhibit superior balance of stiffness, impact strength and chemical resistance, making them ideal for a broad range of applications such as extrusion (blown film, pipe and monofilament) as well as injection and blow molding of consumer, household and industrial products.
EVALENE® High Density Polyethylen
grades offer excellent sealing properties for more efficient and faster packing rates, which are preferred in the flexible packaging market segment, as well as outstanding tear, dart drop impact, puncture and optical properties which are suitable in the agricultural and industrial films market segments.
EVALENE PLUS® Unimodal Metallocene Linear Low Density Polyethylene
grades combine outstanding toughness, stretchability and good processability, making them a good choice for flexible packaging and film extrusion applications.
EVALENE® Linear Low Density Polyethylene
grades combine the superior mechanical properties of metallocenes with the ease of processing of bimodals, allowing further downgauging and increased incorporation of recycles. These properties are best applied in the design of high performance heavy duty bags as well as bottle caps for carbonated beverages which require outstanding environmental stress crack resistance (ESCR).
EVALENE PLUS® Bimodal Metallocene
grades are an excellent choice for a broad range of applications that require rigidity, stress-induced tenacity, transparency, moisture barrier and hot-fill property.
EVALENE® Homopolymer Polypropylene
grades offer high clarity, light weight and excellent hot-fill property suitable for transparent rigid packaging containers.
EVALENE PLUS® Random Copolymer Polypropylene
PROPYLENE TO POLYPROPYLENE
METALLOCENE CATALYSIS
OR ZIEGLAR NATTA POLYMERIZATION
