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Subfield · Chemical Engineering

Filtration and Separation research

Filtration and Separation is a subfield of Chemical Engineering. Science Explorer counts 27k research works in it since 1950. 10.2% of them reached the world's top 10% most cited for their field and year.

In short: separating components suspended in a fluid based on granularity properties relying on a filter device.

Research works
27k
fractional, since 1950
In the world top 10%
2.8k
per year above
Top-10% rate
10.2%
share of its works in the world top 10%
Topics
1
Growth, 2018-21 → 2022-25
-23%
the tick is no change
Largest producer
China
36% of the 10 largest, 2022-now
Filtration and Separation

Which countries lead Filtration and Separation research?

On research quality in 2022-now, China and India rank highest in Filtration and Separation. By volume, China and India publish the most (661 and 324 works in 2022-now).

By research quality, 2022-now

  1. 1 China #3 all time 1.11× excellence · 1.03× journals · 100% breadth 12.2% top 10% · 576 works
  2. 2 India #8 all time 0.74× excellence · 0.44× journals · 100% breadth 9.1% top 10% · 300 works

The track on each row is that row's top-10% rate. The ranking itself is the quality score, which compares the rate with what each place's own topics predict, adds its share of papers in the Nature Index journals, and counts output and breadth too.

Of 2 countries ranked in Filtration and Separation. Ranked on the quality score for 2022-now; the bracket is the all-time rank.

All countries ranked in Filtration and Separation

By volume, 2022-now

  1. 1 China 661 works
  2. 2 India 324 works
  3. 3 United States 219 works
  4. 4 Russia 173 works
  5. 5 Iran 103 works
  6. 6 Germany 93 works
  7. 7 Japan 74 works
  8. 8 France 69 works
  9. 9 Brazil 69 works
  10. 10 Portugal 55 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

China: 35.9%India: 17.6%United States: 11.9%Russia: 9.4%6 others listed: 25.2%36%largest
China661 · 35.9%India324 · 17.6%United States219 · 11.9%Russia173 · 9.4%6 others listed464 · 25.2%

Shares of the rows listed above, not of the whole node.

Which institutions lead Filtration and Separation research?

Russian Academy of Sciences (Russia) ranks first in Filtration and Separation on research quality in 2022-now, followed by .

By research quality, 2022-now

  1. 1 Russian Academy of Sciences Russia · Moscow · #7 all time 4.0% top 10% · 62 works

The track on each row is that row's top-10% rate. The ranking itself is the quality score, which compares the rate with what each place's own topics predict, adds its share of papers in the Nature Index journals, and counts output and breadth too.

Of 1 institutions above the floor of 40 fractional works in Filtration and Separation.

Top 100 Filtration and Separation institutions

By volume, 2022-now

  1. 1 Russian Academy of SciencesRussia 67 works
  2. 2 Centre National de la Recherche ScientifiqueFrance 31 works
  3. 3 Chinese Academy of SciencesChina 30 works
  4. 4 Chengdu University of TechnologyChina 26 works
  5. 5 Qingdao University of Science and TechnologyChina 16 works
  6. 6 Technical University of DenmarkDenmark 16 works
  7. 7 Lomonosov Moscow State UniversityRussia 16 works
  8. 8 University of AveiroPortugal 16 works
  9. 9 Tianjin UniversityChina 15 works
  10. 10 China University of Petroleum, East ChinaChina 15 works

Who are the leading researchers in Filtration and Separation?

Counting only their work in Filtration and Separation, João A. P. Coutinho, Mara G. Freire and Frank J. Millero have the most papers in the world top 10% for their subfield and year beyond the 10% expected.

  1. 1 João A. P. Coutinho Portugal · #180,922 worldwide overall 41.9 of 104 papers here in the top 10%
  2. 2 Mara G. Freire Portugal · #153,102 worldwide overall 27.7 of 62 papers here in the top 10%
  3. 3 Frank J. Millero United States · #36,255 worldwide overall 20.1 of 70 papers here in the top 10%
  4. 4 Kenneth S. Pitzer United States · #65,195 worldwide overall 16.1 of 46 papers here in the top 10%
  5. 5 Jacques E. Desnoyers Canada · #79,353 worldwide overall 11.1 of 25 papers here in the top 10%
  6. 6 Michael H. Abraham United Kingdom · #381,744 worldwide overall 16.5 of 54 papers here in the top 10%
  7. 7 Isabel Maria Marrucho Portugal · #221,552 worldwide overall 15.4 of 25 papers here in the top 10%
  8. 8 Luís Paulo N. Rebelo Portugal · #189,614 worldwide overall 11.9 of 22 papers here in the top 10%
  9. 9 Simon L. Clegg United Kingdom · #91,717 worldwide overall 10.5 of 29 papers here in the top 10%
  10. 10 Robert E. Mesmer United States · #185,016 worldwide overall 9.3 of 26 papers here in the top 10%

Ranked on their work in Filtration and Separation alone: how many more of their papers here reached the world top 10% for their subfield and year than the 10% expected, among 94,761 ranked researchers with a paper here. Each paper counts once, so many strong papers outrank one famous one, and a long record of ordinary papers does not climb. Identities come from OpenAlex author disambiguation, which occasionally merges or splits people.

Top 100 Filtration and Separation researchers

What are the most cited papers in Filtration and Separation?

The most cited paper in Filtration and Separation is "Comparison of simple potential functions for simulating liquid water" (William L. Jorgensen, Jayaraman Chandrasekhar, Jeffry D. Madura et al., 1983), with 42,894 citations. Next come "Deep Eutectic Solvents (DESs) and Their Applications" (7,356) and "Novel solvent properties of choline chloride/urea mixturesElectronic supplementary information (ESI) available: spectroscopic data. See http://www.rsc.org/suppdata/cc/b2/b210714g/" (5,650).

Most cited papers
#PaperReleasedCitations
1 Comparison of simple potential functions for simulating liquid water William L. Jorgensen, Jayaraman Chandrasekhar, Jeffry D. Madura et al. · The Journal of Chemical Physics 15 Jul 1983 42,894
2 Deep Eutectic Solvents (DESs) and Their Applications Emma L. Smith, Andrew P. Abbott, Karl Scott Ryder · Chemical Reviews ReviewOpen access 10 Oct 2014 7,356
3 Novel solvent properties of choline chloride/urea mixturesElectronic supplementary information (ESI) available: spectroscopic data. See http://www.rsc.org/suppdata/cc/b2/b210714g/ Andrew P. Abbott, Glen Capper, David Lewis Davies et al. · Chemical Communications Open access 26 Nov 2002 5,650
4 The IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use Wolfgang Eric Wagner, A. Pruß · Journal of Physical and Chemical Reference Data Jun 2002 4,947
5 An internally consistent thermodynamic data set for phases of petrological interest Tim J. B. Holland, Roger Powell · Journal of Metamorphic Geology May 1998 4,886
All 101 most cited papers, with filters and sorting

Where is Filtration and Separation research done?

The largest centres of Filtration and Separation research in 2022-now are Beijing (China), Moscow (Russia), Tianjin (China) and Qingdao (China). Among places with at least 20 works in it, it is an unusually large share of all research in Ivanovo and Tabriz.

Largest cities, 2022-now

  1. 1 BeijingChina 86 works
  2. 2 MoscowRussia 69 works
  3. 3 TianjinChina 47 works
  4. 4 QingdaoChina 44 works
  5. 5 ChengduChina 40 works
  6. 6 TabrizIran 33 works
  7. 7 HangzhouChina 30 works
  8. 8 IvanovoRussia 30 works
  9. 9 ShanghaiChina 27 works
  10. 10 TehranIran 25 works

Where it is the local speciality

  1. IvanovoRU · 29.7 works128×
  2. TabrizIR · 32.9 works19×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Filtration and Separation than the world average.

See Filtration and Separation on the map

Where is the best place to study Filtration and Separation?

Among universities, judged by research, University of Aveiro, Technical University of Denmark and Lovely Professional University score highest, combining standing in the field's ranking, excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%10%20%mean 9.24%fractional works in this field (log) →share of work in the world top 10% →University of AveiroLovely Professional …Qingdao University o…Technical University…
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Standingthis field's institution ranking, three quarters all time and a quarter 2022-now
50%
Excellenceshare of its work in the world top 10%, 2022-now and all time averaged
20%
Specialisationhow much of its work is in this field, counted up to 10× the world share
5%
Sizeits output in this field, on a log scale
15%
Growthoutput growth, counted from -20% to +20%
5%
Internationalshare of its work with a co-author abroad
5%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreRank in field (all time)Top 10%SpecialisationWorksGrowth
1University of AveiroPortugal 37.4-16.6%21.9×16 -37.9%
2Technical University of DenmarkDenmark 35.0-9.8%14.3×16 +35.8%
3Lovely Professional UniversityIndia 30.0-12.0%13.5×15 +167.7%
4Qingdao University of Science and TechnologyChina 29.1-10.5%19.8×16 +36.8%
5University of TabrizIran 25.3-12.4%27.6×15 -47.6%
6Chengdu University of TechnologyChina 24.9-1.1%30.1×26 +5.5%
7Siksha O Anusandhan UniversityIndia 24.1-9.9%30.1×14 +205.8%
8Lomonosov Moscow State UniversityRussia 24.0-0.1%8.4×16 +18.5%
9Universidade do PortoPortugal 24.0-5.7%7.6×11 +89.7%
10Beijing University of Chemical TechnologyChina 24.0-14.3%10.5×10 +48.2%

Universities only. The score blends standing (50%), excellence (20%), size (15%), specialisation (5%), growth (5%), international reach (5%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise. Standing is the score in this field's institution ranking, three quarters over all time and a quarter 2022-now; excellence averages the two windows too. Four years alone undercount fields such as AI, where many conference and arXiv papers from 2022 on carry no affiliation in the data.

Every institution in Filtration and Separation, country by country

Is Filtration and Separation research growing?

Output in 2022-2025 was 23% lower than in 2018-2021, peaking in 2018.

still counting19801990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Filtration and Separation as a percentage of every work published that year, 0.011% in 2024.

still counting0.050%0.10%Filtration and Separation0.011% in 202519801990200020102020

Fractional works of Filtration and Separation over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year.

still counting10%20%Filtration and Separation10.3% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.

What does Filtration and Separation include?

Share who leads Filtration and Separation

Who leads Filtration and Separation, on Science Explorer

A card with the countries and institutions that lead Filtration and Separation, for a post or a slide.

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1200 × 630 PNG, sized for social posts, drawn from the latest snapshot.

The leading institutions' badges1Each links to that institution's page and updates with every snapshot

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