MEMBRANE REACTOR_AMAL ABRAHAM_KA21128.pptx

MEMBRANE REACTOR_AMAL ABRAHAM_KA21128.pptx

1. INDIVIDUAL PROJECT NAME: AMAL ABRAHAM MATRIC ID: KA21128 TITLE: MEMBRANE REACTOR

2. INTRODUCTION: System where a chemical or biochemical conversion combined with a membrane operation. Two ways; - catalytically inert (membrane reactor) - Catalytic ( catalytic membrane reactor) Separation process allows to remove products from reaction thus enhancing yield (le chatelier’s principle)

3. LITERATURE REVIEW OVERVIEW: RESERVED FOR PROCESSES WHERIN THE MEMBRANE FUNCTIONS ARE MORE THAN SIMPLY A REACTIVE MEMBRANE. TYPES OF MEMBRANE: CAN BE CLASSIFIED INTO 1. HOMOGENEOUS/ HETEROGENEOUS. 2. ORGANIC (POLYMERIC) & INORGANIC (CERAMIC, METAL)

4. ORGANIC MEMBRANE COMMON USED FOR BIOCATALYTIC REACTORS PROCESSES MAINLY FOR: - FOOD & BEVERAGE - BIOTECHNOLOGICAL - BIOMEDICAL

5. INORGANIC MEMBRANE: INORGANIC MEMBRANE COMBINED IN A SINGLE – UNIT OPERATION. A POSSIBLE SCHEME OF AN INORGANIC MEMBRANE REACTOR COMPARISONS BETWEEN CONVENTIONAL SYSTEM & MEMBRANE REACTOR FOR WGS (WATER GAS SHIFT) REACTION.

6. APPLICATION OF INORGANIC MEMBRANE REACTORS MEMBRANE REACTORS ARE TESTED & STUDIED FOR DIFFERENT REACTION SYSTEMS. REACTIONS CONSIDERED FOR HYDROGEN PRODUCTION : WGS METHANE DECOMPOSITION STEAM REFORMING DEHYDROGENATION AMMONIA DECOMPOSITION

7. COMPARISON ORGANIC MEMBRANE SOLUTION DIFFUSION LOW PRODUCTION COST DISADVANTAGES : POOR THERMAL & CHEMICAL RESISTANCE INORGANIC MEMBRANE CARBON MEMBRANE & ZEOLITE MEMBRANE CARBON - KNUDSEN DIFFUSION - EXCELLENT CHEMICAL STABILITY ZEOLITE - MOLECULAR SIEVING - EXHIBIT CATALYTIC PROPERTY DISADVANTAGES : HIGH PRODUCTION COST & BRITTLE

8. CHAMBER DESIGNED FOR A BIOCHEMICAL TRANSFORMATION COMBINED WITH A MEMBRANE SEPARATION PROCESS. USED FOR DIFFERENT PURPOSES PROMINENT WASTEWATER TREATMENT METHODOLOGY OVER CAS (CONVENTIONAL ACTIVATED SLUDGE) MEMBRANE BIOREACTOR

9. DRAWBACKS: FOULING : MAJOR OBSTACLE Decreases the lifetime of membrane Degree of membrane fouling depends directly on the membrane characterization Takes place due to various physiochemical & biological processes

10. CURRENT RESEARCH DIRECTION: 37 / 800 mbr plants are operating at Europe. Annual growth rate of 17.4% Due to the increasing demand for wastewater treatment Mbr market driven by the increased scarcity of water, stricter rules for water discharge, reuse quality legislation.

11. SUMMARY Membrane reactors & bio-reactor have been introduced & discussed. Membrane reactor can be used to increase conversion. The core of the membrane reactor is the membrane (organic/ inorganic) Membrane reactor is a hybrid system amalgamating membrane separation with biological treatment.

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