SSRN Electronic Journal,
Journal Year:
2021,
Volume and Issue:
unknown
Published: Jan. 1, 2021
Although
massive
materials
and
diverse
methods
have
been
developed
for
the
treatment
of
oil/water
mixtures,
continually
separating
mixtures
particularly
water-in-oil
emulsion
is
still
a
severe
challenge.
Herein,
we
presented
dual-layered
fiber
membrane
continuously
via
coalescence
demulsification.
The
proposed
consisted
layer
coalescing
layer,
its
structures
surface
wettability
were
rationally
designed.
As
consequence,
as-prepared
could
separate
emulsions
with
separation
efficiency
higher
than
99.6%
permeation
flux
up
to
50000
L/m
2
h,
as
well
it
an
volume
3L
within
8
min,
which
10~200
times
that
state-of-the-art
membranes
reported
previously.
Besides,
demulsification
process
emulsified
water
droplets
on
was
directly
observed
investigated
experiments
simulations,
mechanism
thoroughly
revealed,
provides
theoretical
guidance
inspiration
scientists
engineers
develop
novel
advanced
separators.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(26), P. 14145 - 14158
Published: Jan. 1, 2023
Amphiphilic
hyperbranched
poly(amido-amine)
with
a
core–shell
structure
based
on
multi-scale
rational
design
as
an
efficient
additive
can
enhance
demulsification
performance
at
low
temperature.
Frontiers in Energy Research,
Journal Year:
2022,
Volume and Issue:
10
Published: May 31, 2022
Hyperbranched
polymer
is
a
kind
of
with
three-dimensional
structure,
which
contains
highly
branched
structure
and
large
number
modified
terminal
functional
groups.
The
desired
properties
can
be
obtained
by
modifying
the
active
end
groups
appropriately.
polymers
have
been
successfully
used
in
development
oilfield
chemicals
due
to
their
excellent
solubility,
rheology,
temperature
resistance,
salt
resistance.
Therefore,
application
hyperbranched
helpful
efficient
oilfields.
In
this
paper,
synthesis
methods
are
reviewed.
advantages
disadvantages
different
analyzed.
Furthermore,
research
progress
chemistry
systematically
described,
existing
problems
flooding
as
oil
displacement
agents,
demulsification
crude
oil,
clay
hydration
expansion
inhibition,
shale
inhibition
discussed.
Finally,
prospect
drilling
chemistry,
recovery
gathering
transportation
forecasted,
expected
help
popularization
Molecules,
Journal Year:
2023,
Volume and Issue:
28(23), P. 7934 - 7934
Published: Dec. 4, 2023
Polymer
flooding,
one
of
the
main
methods
for
improving
crude
oil
recovery
using
chemical
flooding
technology
in
China,
is
widely
used
actual
displacement.
Partially
hydrolyzed
polyacrylamide
(HPAM)
a
commonly
linear
polymer
but
it
exhibits
poor
temperature
and
salt
resistance
due
to
its
molecular
structure.
Therefore,
branched
polymers
have
been
studied.
This
article
provides
review
specific
synthetic
current
practical
applications
petrochemical
field
dendritic
hyperbranched
macromolecules.
The
advantages
disadvantages
each
method
are
also
elaborated.
Finally,
application
prospects
discussed.
feasibility
large
quantities
should
be
further
verified
through
additional
tests,
which
address
concerns
such
as
synthesis
costs
reaction
efficiency.
