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Dalian Daqi Chemical Technology Research Institute Limited has more than 50 full-time R&D personnel, 3 professors, 5 associate professors, 10 senior researchers with doctoral degree and post-doctoral experience at home and abroad, more than 20 backbone researchers with master's degree, and a student Corps composed of doctoral and postgraduate students, as well as from universities. A team of specialists appointed by the Chinese Academy of Sciences and the business community. The Research Institute maintains good cooperation with the research institutes of large companies such as PetroChina and Sinopec, as well as many well-known universities in China.

The Research Institute consists of molecular sieve catalyst amplification laboratory, pilot plant, fixed bed reaction evaluation center and analysis and detection center. It is the carrier of Dalian Molecular Sieve Catalyst Engineering Center and Liaoning Provincial Public Service Platform for Fine Chemical Technology Research and Development.

The Research Institute and Dalian University of Technology jointly established the Research and Development Center of Advanced Molecular Sieve Catalytic Technology, which belongs to the State Key Laboratory of Fine Chemical Industry of Dalian University of Technology. Reliable personnel support and a large number of advanced scientific instruments and equipment resources can provide support for the company's progress and technological innovation.


Introduction to R&D hardware of the Institute:

1. Material Testing Instruments

1) Crystallographic identification of materials
Main instruments:
Polycrystalline Powder Diffraction Instrument (DMAX-2400)
A Bruker Smart APEX II Single Crystal Diffractometer
It can satisfy the crystal phase analysis, crystallinity and grain size calculation of organic, inorganic and polymer crystal materials.


2) Chemical Composition Analysis of Materials
Main instruments:
X-ray fluorescence spectrometer (XRF, Bruker SRS-3400)
Analysis of Constant and Trace Multivariate Elements
Inductively Coupled Plasma Emission Spectrometer (ICP, PE Optima 2000 DV)
Inductively Coupled Plasma Mass Spectrometer (ICP Mass, PE NexION 300D)
Analysis of Trace and Ultra-trace Multivariate Elements and Isotope Ratio
Elementar Vario EL III
It is specially used for quantitative analysis of C, H, O, N and S. It can serve geology, environmental protection, chemical industry, biology, medicine, food, metallurgy and agriculture.


3) Analysis of Crystal Morphology and Particle Size of Materials
Main instruments:
Field Emission Transmission Electron Microscopy (TEM, FEI TF30)
Structural analysis and micro-element analysis for nano-and sub-nano-objects
One ultra-high resolution field emission scanning electron microscope (SEM, Fei Nova nanosem 450)
Morphology and Structure Analysis of Micron and Nanometer Objects
Environmental Scanning Electron Microscope (ESEM, FEI Quanta 450)
A atomic force microscope (PARK XE-70) can be used to obtain high-resolution surface images and some physical constants of biological, non-conductive and liquid samples under natural conditions for morphological observation and qualitative and quantitative analysis of elements.
One Laser Particle Sizer (Malvern Zetasizer 1000)
It is used to measure the particle size distribution of nanometer and micrometer objects.


4) Analysis of Porosity, Specific Surface Area and Pore Diameter of Catalyst
Main instruments:
Micromeritics ASAP2020
Micromeritics TriStar II
Quantachrome PoreMaster-60
A complete set of solutions for microporous, mesoporous and macroporous analysis can be provided.


5) Fine structure of materials and analysis of active sites of catalysts
Main instruments:
Solid Superconducting Nuclear Magnetic Resonance Spectrometer (Bruker 500M)
Study on Materials Containing Si, Al, P, O, F, C and H
Ultraviolet Resonance Raman Spectrometer (DICP, DL-2)
Chemical Bond Vibration Information for Polymer, Organic, Inorganic and Hybrid Materials
Thermo Fisher Scientific DXR Smart Raman
It can be used for composition analysis and structure identification of materials. It can be used for macromolecule, catalysis, nanotechnology, pharmacy, semiconductor, carbon materials, life science, environmental science and forensic identification.


6) Active Center of Catalyst and Analysis of Chemical Reaction Mechanism
Main instruments:
Fourier Transform Infrared Spectrometer (Thermo Scientific NICOLET is 10) 3 sets
67001 stations
Thermo Fisher Scientific IN10 1
These devices consist of in-situ diffuse reflectance infrared, transmission infrared, in-situ dual-speed infrared and micro-infrared spectroscopy.


7) Thermal stability analysis of materials
A Synchronized Thermal Analyser
The instrument (NETZSCH, STA449F3 + QMS403D) combines thermogravimetric analysis (TG) with differential thermal analysis (DTA) or differential scanning calorimetry (DSC). Thermogravimetric and differential thermal information can be obtained simultaneously by using the same sample in the same measurement.
2. Catalyst Reaction Performance Evaluation Equipment


1) Multi-functional small fixed-bed continuous reactor:
Catalyst loading 10 ml
32 sets of on-line chromatographic reactor
49 sets of non-chromatographic on-line reactor
The harsh reaction conditions of high temperature and high pressure can be provided for the study of heterogeneous catalytic reactions of gas-solid, liquid-solid and gas-liquid-solid.
2) Small batch reactor
Eight sets of plasma-coupled reactors
Five sets of chromatographic pulse microreactor system
A Small Fixed Fluidized Bed
Ten sets of 200-2000 ml atmospheric and autoclave reactors
It can be used for selective hydrogenation, selective oxidation, amination, epoxidation, ammonia oxidation, hydration and dehydration.


3) Fixed Bed Multifunctional Pilot Plant: Catalyst loading can reach kilogram level
Among them, Xytel fully automatic reaction evaluation device 1 set
High Pressure Fixed Bed Device 6 Sets
Five Low Pressure Fixed Bed Devices
Various forms of heterogeneous catalytic reactions of gas-solid, liquid-solid and gas-liquid-solid can be carried out.
3. Fine Chemicals Identification Equipment (16 sets)


Liquid nuclear magnetic resonance, gas chromatography-infrared spectrometer, ultraviolet/visible/near infrared spectrometer, time-of-flight tandem mass spectrometer, quadrupole time-of-flight tandem mass spectrometer, high performance liquid chromatography-time-of-flight mass spectrometer, high performance liquid chromatography-time-of-flight mass spectrometer, evaporative light scattering detector, gas chromatography Spectrum/Mass Spectrometer, Gas Chromatography/Triple Quadrupole Mass Spectrometer, Ion Chromatography (DIONEX ICS-5000), Molecular Distillation Instrument Asahi MDS, Rapid Solvent Extraction Instrument Dionex ASE350, Automatic Separation and Purification System Waters 2545-3767-2489

core technology
1. Catalytic materials of zeolite molecular sieves

 It has been devoted to the research and development of practical zeolite molecular sieve materials for a long time. It is good at regulating the composition of zeolite molecular sieve, grain size and green synthesis using seed technology.
Representative Patents: (23)
Representative academic papers: (18)


2. Catalyst Technology
Representative Patents: (7)
Representative academic papers: (31)
Catalysts for Aromatization to Aromatics
The raw material processing capacity of a single unit is 69,000 tons per year.
Type E DLP-3A matched with steam cracking, HDLP-3A matched with hydrogen production unit and XDLP-3A matched with platinum reforming unit
Catalysts for aromatization to gasoline
1) DLP-3G, DLP-4G catalysts for aromatization of butylene liquefied gas
2) Special catalysts DLP-XW (X=1,2,3) and DLP-XT (X=1,2) for the aromatization of butylene with liquefied butane gas
3) DLP-XSRG (X=1,2) catalyst for non-hydroupgrading of naphtha with low octane number
Aromatic alkylation catalyst
1) DL-CUM-X catalyst for cumene production (X=1,2)
2) DL-EB-X catalyst for ethylbenzene production (X=1,2,3)
3) DL-PDEB-4 catalyst for p-diethylbenzene production


3. Green Epoxidation Catalyst Technology for Propylene
At present, the challenges faced by HPPO process include: (1) TS-1 catalyst based on classical synthesis method is expensive; (2) the use of methanol solvent complicates the process. Therefore, on the one hand, the company's scientific researchers are committed to establish new methods for TS-1 synthesis and catalyst preparation from basic materials, on the other hand, they are committed to developing a new process for propylene epoxidation which can get rid of methanol solvent.
Representative Patents: (4)
Representative academic papers: (14)


4. Non-equilibrium plasma chemical synthesis technology
High-energy electrons in non-equilibrium plasma (NEP) activate chemical bonds between free molecules and species adsorbed on the surface. Therefore, putting chemical reaction in plasma field is expected to create a new catalytic reaction technology. So far, NEP technology has been widely used in material surface treatment, pollutant degradation and lighting, but the application of non-equilibrium plasma in chemical synthesis is still in its infancy.
Our company's researchers have been devoted to the selective activation of H2, O2, NH3, CH3OH and CH4 by non-equilibrium plasma field for a long time. At present, important breakthroughs have been made in the direct synthesis of electronic hydrogen peroxide by selective activation of hydrogen and oxygen.


State Funds:
1. Direct synthesis of nitrile fine chemicals by plasma-catalyzed reaction of CH4 with NH3 (National Natural Science Foundation of China, Youth), 21503032, 2016-2018
2. Hydrogen production by plasma-catalyzed ammonia pyrolysis (NSFC, surface), 2067 3018, 2007-2010
3. Hydrogen production by plasma-catalyzed ammonia pyrolysis (NSFC, surface), 2047 3016, 2005-2006
4. Green Catalytic Study of Propylene Epoxidation (National Natural Science Foundation, Key Project), 20233 050, 2003-2006
Representative Patents: (9)
Representative academic papers: (15)