6SL3000-0BE21-6AA0
6SL3000-0BE21-6AA0
6SL3000-0BE21-6AA0
6SL3000-0BE21-6AA0
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空氣氧化法制備甲醛有兩條工藝路線：1、以電解銀，浮石銀為催化劑的銀法工藝，使用這種方法時，甲醇在原料混合氣中的濃度高于爆炸極限區(qū)上限（36%），即在甲醇過量的情況下操作，由于反應(yīng)氧化不足，反應(yīng)溫度較高（一般為600~720℃），有脫氫反應(yīng)同時發(fā)生，所以又稱氧化-脫氫工藝。2、以Fe2O3-MoO作為催化劑的鐵法工藝，此法是在空氣-甲醇混合氣中甲醇濃度低于爆炸區(qū)的下限（小于6.7%），即在含有過量的空氣情況下操作，由于空氣過剩，甲醇幾乎全部被氧化，所以又稱此法為純粹的氧化工藝。
圖1 甲醛工藝流程
原料甲醇由甲醇計量槽經(jīng)甲醇泵輸送至甲醇高位槽，保持一定流量經(jīng)過濾后進入甲醇蒸發(fā)器，同時由羅茨風(fēng)機將經(jīng)過濾后的空氣送入甲醇蒸發(fā)器底部。甲醇經(jīng)過加熱氣化及空氣夾帶，與空氣形成二元混合氣；再和通入一定流量的蒸汽相混合，形成三元混合氣，三元混合氣經(jīng)過熱器過熱后，進入阻火過濾器，再次過濾后的三元混合氣進入氧化器，在氧化室加熱元件的高溫與電解銀催化劑的作用下，發(fā)生氧化脫氫反應(yīng)。反應(yīng)氣體快速經(jīng)過氧化器急冷段并在急冷段的冷卻下，進入1#吸收塔循環(huán)吸收，循環(huán)液部分采出即為成品甲醛溶液（濃度37%左右），并進入甲醛計量槽及甲醛成品槽。經(jīng)1#吸收塔循環(huán)吸收后的尾氣進入2#吸收塔，以脫鹽水作為吸收劑，經(jīng)2#吸收塔循環(huán)吸收收的尾氣，經(jīng)尾氣液封槽，最終進入尾氣處理裝置作為燃料燃燒，燃燒后的尾氣直接進入大氣，達到零污染排放。
Electroglas EG5 / 300 ARGOS Wafer Prober (Reduced!)
Tenney / Lunaire T-Series Environmental Chamber
TA Instruments TMA2940 Thermomechanica?l Analyzer
Tektronix DTG5274 Data Time Generator w/ Modules
Rohde & Schwarz UPL16 Audio Analyzer (Reduced)
Rohde & Schwarz UPL16 w/ Options & Accessories
Lindgren ETS Series 81 RF Shielded Room 9' x 7' x 8'
Thermotron S-32C Environmental Chamber
HP Agilent 35670A Dynamic Signal Analyzer w/ opt's
Bio-Rad FTS 45 FT-IR Spectrometer w/UMA 300A FTIR
Alzmetall AB3R Drilling Machine
Perkin Elmer Autosystem Gas Chromatograph
Mattson Polaris IR-10410 FTIR Spectrometer (Reduced!)
Alloyd 2SC1016 Dual Shuttle Sealer, 10 x 16!
Bio Rad UMA-500 Spectroscopic Microscope, 15x & 4x
Telsonic USP3000 Ultrasonic Welding System
Metrum MET64SCUA 8000 Speed (Reduced!)
HP E4433B opt's 1E5/UND/UN4/UN5?/UN7
Rohde & Schwarz FSEB20 Spectrum Analyzer
Agilent 70420A Phase Noise Test Set w/ opt 001
GLSI Hg253 Portable Vapor Mercury Analyzer
Caliper Life Science Tekmar Autotrace SPE Workstation
HP 89441A Vector Signal Analyzer AYA / AYB / AY9 / UFG
LMI SE2050 Laser Engraver (Reduced!)
SSEC Evergreen M10 Wafer & Mask Cleaner
Includes Manual, Software & Ammonia Cabinet
Agilent 35670A opts AY2/1D0/1D1/1D2?/1D3/1D4/1C2
Kester KWB-1000 Automated Wetting Balance Tester
Mobicom Accetio 2189 Lot of 1000, All New (Reduced)
Each Brand New Cell Phone is Complete with Accessories
Wandel & Goltermann OSA-155 DWDM System Analyzer
HP Agilent 83621A Synthesized Signal Generator
DynaMyte 4000 Milling Machine
Mech-El Industries 709 Manual Eutectic Die Attacher
HP/Agilent E9850A VXI Embedded PC Controller
HP Agilent 5373A Domain Pulse Analyzer (Reduced!)
Tektronix PB200 Packet / Cell BERT Tester (Reduced!)
Nicolet Model 730 FTIR Spectrometer with AEM Module
Wavetek 4808 Multifunction Calibrator
DRANETZ PP1-P
Hardinge DV-59 / DSM-59 Industrial Lathe
3M-Matic 700r Random Case Sealer, 15 boxes per min!
Zero Products BNP65-600R&DC Media Blaster w/ Filter
Blue M IGF-7780F Environmental Oven 1100°F
Heller 1148 IRC Reflow Convection Oven
Rohde & Schwarz CMD55 Com Test Set w/ opt's and manuals
Applied Systems Eng.167KU 300 Watt TWT (Reduced!)
Despatch LFD2-24-3 Forced Air Oven
GSI ScanArray 3000 Microarray Scanner
Azco FG160 SUR-PAK Precision Cutting Machine
Empire Pro-Finish FS-2636 3 Piece System!
HP 83420A opts 014 / 210 (Reduced!)
HP Agilent 8665A Signal Generator 100KHz - 4.2GHz
Agilent 8509B Lightwave Polarization Analyzer
HP 35665A opts 1C1/1C2/1D0/1D2?/ANA
Amtech Ultraweld 20 Precision Ultrasonic Welder
Coherent Innova 90-6 with LaserPure 20N & Power Supply
Tektronix GB1400 Analyzer/Genera?tor Test Set (Reduced)
Coulter Delsa 440 Particle Counter w/ Power Supply
Tektronix PQA300 Picture Quality Analysis System
Perkin Elmer ABI Prism 7700 Sequence Detector
Clausing Colchester 11 Lathe w/ Accessories
Lydall Affinity CBD-007S-BB09C-?BD3 Chiller
Unadyn UDC-55 Mini Dryer with 300 Modular Hopper
Bruel & Kjaer 4602B w/ 4185 & Accessories (Reduced)
Microtrac FRA 9250 Particle Size Analyzer
Cumberland 284 Pelletizer, Granulator
Graco Air Powered Pump with Drum
Blue M Lindberg WSP-109C-MP3 Shock Chamber (Reduced!)
Mitutoyo PH-350A Optical Comparator
Metrum MET64SCUAO 4000 Speed (Reduced!)
Blue M 1004-8C-MP3 Environmental Test Chamber
Perkin Elmer Arnel Autosampler
Solitec Edwards High Vacuum Pump System
HP 8510C opt 010 50 GHz Network Analyzer (Reduced!)
MPM SP-1500 Semi-Automatic Screen Printer
Danly 5 Ton, Four Post Air Press (Reduced!)
HP 4352B VCO / PLL Signal Analyzer (Reduced!)
HP Agilent 8760A K72 Performance Test Matrix (Reduced)
Chase Machine & Engineering Oven Module
ENI EGR9600B Power Generator 9,000 Watts (Reduced)
CyberOptics MicroScan Laser Measure System
Cheminstruments AR-1500 Adhesion Release Tester
Metrum VLDSB Data tape Recorder (Reduced!)
Adtech SX/14 Data Link Simulator Mainframe (Reduced!)
HP/Agilent 70909A 26.5 GHzRF Section Module (Reduced!)
HP/Agilent 89410A opt's AYA,AYB,AY9,UFG (Reduced!)
Tektronix VM700A Automatic Video Measurement Set w/ opt
Blue M DC-206C Convection Oven
Dukane 410 Series Ultrasonic Wedling System
Agilent E1437A VXI Digitizer Module
Nikon Linear Measurescope 20 LS-403 Stage
Nikon Measurescope 20 LS-402 Stage
Spencer Industravac SA607A Air Clean System (Reduced!)
Fisher Scientific Isotemp Plus Freezer 13-986-146RA
Micro Robotics Systems Inc Model 170G (Reduced!)
Dukane 410 Series Ultrasonic Wedling System
Maag Flockmaschinen SPG 1000 Rise Time Tester
Extek 3100 Silver Film Duplicator w/ Manual/Accessor?ies
Gorman Bobbineer Wire Winding Machine
Wandel & Goltermann RME-5 / RMS-5 System (Reduced!)
ETS Lindgren T/T RF Enclosure w/ Anechoic Absorber
Uson Testra 1100 Gauge Decay Tester
Nikon SMZ800 Stereomicroscop?e w/ SDC-240 Digital Camera
Seven Associates B-1A Induction Heating Unit
