Chemical Engineering

膜蒸馏

Membrane Distillation

A thermally driven separation process that uses a hydrophobic microporous membrane to separate water vapor from a liquid feed solution. The vapor passes through the membrane pores driven by a vapor pressure gradient created by a temperature difference. / 一种热驱动分离过程，利用疏水微孔膜将水蒸气从液体进料溶液中分离。水蒸气在温度差产生的蒸汽压梯度驱动下穿过膜孔。

Knowledge type: 工艺技术
First proposed or discovered
Proposer: Turkey Farm member
Creator: 农场主
Last updated: 2026-11-08 18:06:25

Sub-knowledge points

Direct Contact Membrane Distillation (DCMD)Hybrid membrane distillation systems

Higher-order knowledge points

DesalinationWater treatmentConcentration of organic solutions

Main parameters and performance indicators

Temperature Difference: Drives the vapor pressure gradientMembrane Pore Size: Must be smaller than the liquid entry pressure to prevent wettingFeed Temperature: Higher temperature on the feed sidePermeate Temperature: Lower temperature on the permeate side

Open problems

Membrane wetting and foulingEnergy efficiency optimizationScaling and concentration polarization

Related literature

ranked by community stars

Heat and mass transfer characteristics of direct contact membrane distillation under marine sloshing: Numerical modeling and predictive correlationsOpen source

膜蒸馏

Sub-knowledge points

Higher-order knowledge points

Main parameters and performance indicators

Open problems

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