FIELD: process engineering.
SUBSTANCE: invention relates to high-pressure reactor with fluidised layer designed to produce granulated polycrystalline silicon. Said rector comprises tube, shell embracing said tube, tune inner zone and outer zone formed between reactor shell and tube. Note that fluidised layer of silicon particles is formed in aforesaid inner zone and silicon is settled, while no such layer is formed in outer zone neither silicon is settled therein. Besides high-pressure reactor incorporates pressure difference control element to maintain difference between pressures in aforesaid inner and outer zones equal to 0-1 bar.
EFFECT: possibility to maintain physical stability of reactor tube and produce granulated polycrystalline silicon at comparatively high reaction pressure.
26 cl, 10 ex, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING GRANULAR POLYCRYSTALLINE SILICON IN FLUIDISED BED REACTOR | 2007 |
|
RU2397953C2 |
| PRODUCTION OF SILICON IN FLUIDISED BED REACTOR WITH USE OF TETRACHLOROSILANE FOR DECREASING SEDIMENTATION AT REACTOR WALLS | 2009 |
|
RU2518613C2 |
| DEVICE WITH SOLID-STATE NOZZLE FOR ENDOTHERMAL REACTIONS WITH DIRECT ELECTRICAL HEATING | 2019 |
|
RU2778871C2 |
| THERMOLYTIC FRAGMENTATION OF SUGAR USING RESISTIVE HEATING | 2019 |
|
RU2801570C2 |
| POLYPROPYLENE COMPOSITION WITH IMPROVED SHOCK STRENGTH FOR APPLICATION IN PIPES | 2014 |
|
RU2626395C2 |
| GAS-PHASE POLYMERISATION OF ALPHA-OLEFIN | 2011 |
|
RU2490281C2 |
| REACTOR WITH DESCENDING MOVING BED FOR CARRYING OUT CHEMICAL REACTIONS AND METHOD OF CONTROLLING DESCENDING MOVING BED IN SAID REACTOR | 2020 |
|
RU2826063C1 |
| METHOD OF SUPPLYING CATALYST INTO POLYMERISATION REACTOR | 2009 |
|
RU2515857C2 |
| METHOD OF FEEDING CATALYST INTO POLYMERISATION REACTOR | 2008 |
|
RU2461418C2 |
| METHOD OF OXIDATION IN REACTOR WITH PSEUDOLIQUEFIED LAYER | 2002 |
|
RU2339611C2 |
