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| Sulphuric Acid on the WebTM | Technical Manual | DKL Engineering, Inc. |
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Acid Plant Database June 13, 2015
| Owner | Lenzing (Nanjing) Fibers Co., Ltd. |
|
| Location |
Hongshan Fine Chemical Industry Park No. 1 Kangqiang Road Nanjing Jiangsu Province China |
|
| Background | Joint venture between Nanjing Chemical Fibre Co., Ltd. (Nanjing, People’s Republic of China) and Lenzing AG (Austria) | |
| Website | www.lenzing.com | |
| Plant | - | |
| Coordinates* | 32° 16' 60" N, 118° 52' 31" E | |
| Type of Plant | Wet-Gas Sulphuric Acid (WSA) | |
| Gas Source | Viscose Fibre Production: H2S, CS2, sulphur | |
| Plant Capacity |
300 STPD Gas Flow: 80,000 Nm3/h, 3.6% SO2 |
|
| SA/DA | SA | |
| Status | Operating | |
| Year Built | 2007 | |
| Technology | - | |
| Contractor | Haldor Topsøe | |
| Remarks | - | |
| Pictures |
 |
|
| General |
Production of sulphuric acid for a grass root viscose staple fibre factory
located just outside Nanjing in China's Jiangsu Province. The WSA plant
eliminates hydrogen sulphide and carbon disulphide contained in the
off-gases by converting these sulphur compounds into sulphuric acid. The
off-gas volume treated is 80,000 Nm³/h, and 300 ton/day of acid can be
produced. Sulphuric acid is a material used in the production of viscose fibres, so in addition to the environmental effect, the recovery of sulphuric acid will entail considerable savings. The WSA plant is very energy efficient, and excess heat of reaction from the process is recovered in the form of high pressure superheated steam. The steam will be de-superheated and used for process applications in the fibre production, thus reducing fuel consumption for the main boiler to the benefit of both the economy and the environment. |
|
| References | - | |
| News | - | |
MTPD - Metric Tonne per Day
STPD - Short Ton per Day
MTPA - Metric Tonne per Annum STPA - Short Ton per
Annum
SA - Single Absorption
DA - Double Absorption
* Coordinates can be used to
locate plant on Google Earth
