|
KMPS Home
>
Extraction Technology Group
>
Pilot Plant
Services Group |
 |
 |
|
|
|
|
|
|
|
|
|
|
In the rapidly changing
and expanding photovoltaic chemical industry Koch Modular Process
Systems (KMPS) has
become a leader in polysilicon, trichlorosilane and other
related solar energy production processes. Furthermore, KMPS’
expertise includes related hydrogen chloride recovery,
environmentally sound waste disposal and other technologies from
SML Associates. We design and build complete modular process systems
to meet the purification, recycle, safety and environmental needs
of the polysilicon industry. KMPS’ process technologies and modular
approach provide our customers with the lowest capital and operating
cost solutions.
Please contact us to determine if KMPS can help you cost
effectively meet your polysilicon production objectives. Fill out an
on-line inquiry here or call us at
(201) 267-8670 (ask for George Schlowsky or Brian Loftus) and we would
be pleased to discuss your requirements in detail.
|
|
Polysilicon Process Systems
Polysilicon
Trichlorosilane
(TCS)
Silicon
Tetrachloride (STC)
STC to TCS Converter
STC Hydrogenation
Hydrogen
Recovery & Recycle
Hydrogen
Membrane Purification
Aluminum
Chloride Crystallization
Metals
Removal from TCS
TCS
Purification
Waste STC
Hydrolysis
Fluidized Bed
Silicon Deposition
Polysilicon
Tail Gas Recovery |
| |
|
STC to TCS Conversion
|
|
|
KMPS’ systems convert silicon tetrachloride (STC) to
trichlorosilane (TCS) and purify it to industrial or PV grade TCS
with >100% yield (based on inlet weight of STC) using less than
0.25 kW/kg electricity. |
Polysilicon Production
|
|
KMPS designs and guarantees fluidized bed deposition
of polysilicon and recovery of the resulting tail gas. Raw
materials for our polysilicon process systems include metallurgical grade silicon, silicon tetrachloride
and hydrogen. |
Waste STC Hydrolysis
|
|
KMPS' fluidized bed steam hydrolysis is the most
efficient method available for conversion of waste STC to dry, low
chlorine content silica and dry hydrogen chloride, suitable for
recycling to TCS production. Our design minimizes the amount of
energy, operating labor and capital required, as compared to other
approaches practiced in the photovoltaic chemical industry. |
Low Energy Purification Techniques
|
|
In addition to our core polysilicon technologies,
KMPS’ designs incorporate low energy membrane and crystallization
processes to remove impurities from TCS; which reduce energy demand
and produce a purer product that is less susceptible to impurity
spikes. |
|
Experience with Polysilicon
|
|
 KMPS designed and supplied key modules of a commercial polysilicon
production unit to a European customer in the 1st quarter of 2008
and a larger unit to a US customer in the 4th quarter of 2008. These
units purify metallurgical grade silicon (MGS) to electronic grade
silicon by hydrogenation of MGS and STC to make TCS. The resulting
TCS is purified by crystallization and distillation. The European plant has
successfully started up and is producing pure TCS.
It is particularly noteworthy that these plants produce minimal
waste due to extensive recycling of process streams. The waste products
are also treated to minimize discharge of chlorine containing
materials, resulting in a GREEN
process.
KMPS is actively pursuing projects to alleviate the STC
accumulation problem, particularly prevalent in China. These
projects focus on hydrogenation of the surplus STC with MGS and
hydrogen to TCS, which can be reused to make more polysilicon. The
operating cost of these recovery systems, including depreciation, is
less than the raw material cost for making TCS from purchased MGS,
chlorine and hydrogen. Electrical consumption is less than 0.25
kW/kg of STC processed.
Please fill out an on-line inquiry
here to get started.
|
|
|
|
Koch Modular
Process Systems, LLC.
45 Eisenhower Drive, Suite 350, Paramus, NJ 07652
Tel: (201) 267-8670 Fax: (201) 368-8989
Email: systems@modularprocess.com
|
|
| Distillation - Extraction - Absorption - Stripping
- Solvent Recovery - Purification - Separation Processes |
|
©Copyright
2000, Koch Modular Process Systems, LLC. All Rights Reserved
General Conditions and Legal Notices
- Confidentiality Policy
KARR® and SCHEIBEL® are registered trademarks of Koch-Glitsch,
LP.
|
