AMI-300 S corrosion-resistant version

Since the establishment of AMI Instrument Company, customers have continuously requested reactors or characterization equipment with sufficient corrosion resistance to handle corrosive, highly reactive, or unstable reactants and products. And these usage requirements require our testing equipment to be suitable for very "harsh" reaction environments. Through years of technological accumulation, we have launched the AMI-300S series equipment, which is suitable for such "harsh" reaction environments and provides our customers with reliable corrosion resistance testing equipment

Product Overview

Since the establishment of AMI Instrument Company, customers have continuously requested reactors or characterization equipment with sufficient corrosion resistance to handle corrosive, highly reactive, or unstable reactants and products. And these usage requirements require our testing equipment to be suitable for very "harsh" reaction environments.
Through years of technological accumulation, we have launched the AMI-300S series equipment, which is suitable for such "harsh" reaction environments and provides our customers with reliable corrosion resistance testing equipment.

Challenging reactions

Acidic compounds are reactants or products of many important catalytic reactions. For example, in the petroleum industry, catalysts are commonly used for desulfurization of raw materials. During the dehydrogenation and sulfurization process, H2S is a catalytic chemical process used to remove sulfur from natural gas and refined petroleum products. Sulfur mainly exists in the form of hydrogen sulfide (H2S), but it also exists in the forms of thiols, sulfides, disulfides, thiophenes, etc. These sulfides are the main cause of corrosion testing equipment. SO3 and SO2 are also corrosive substances. Due to their corrosiveness, special corrosion-resistant materials are required for the testing equipment used for them. In addition, due to the pre sulfurization of most catalysts, there is an increased requirement for the corrosion resistance of processing pipelines and related accessories. There are many other reaction processes that are also related to acidic reactants or products. The study of engine catalytic converters typically uses nitrogen oxides and acidic molecules as reactants to simulate exhaust gases. Therefore, the testing equipment used for these reactions requires the use of special materials to mitigate corrosion. Another compound that requires special corrosion-resistant equipment is halides. For example, the catalytic oxidation of halogenated VOCs in waste materials. Catalytic oxidation is an effective method for treating such harmful substances, but the material of the testing equipment limits the study of these reactions.

PRODUCT FUNCTION

The AMI-300 S series is equipped with H2S specific MFC, which has advanced sealing materials and can be used for H2S gas with a concentration of 15%, for sample sulfurization treatment and TPS. The corresponding pipelines of the corrosive gas intake system, reaction system, and TCD detection system inside the instrument are all lined with glass or specially treated with a passivation layer for corrosion resistance. The electromagnetic valves, check valves, filters and other accessories used are all treated with Dursan coating for corrosion resistance. Due to the strong corrosiveness of H2S, these parts will be randomly equipped with spare parts to meet the daily needs of customers.

8 standard functions

Pulse chemical adsorption, TPR / TPO，TPD，TPRx， Steam adsorption, pulse calibration, and dynamic BET. Can program 99 processes into one experiment.

11 air intakes

There are 4 channels for processing gas and carrier gas, and the remaining 2 ports can be used for mixed gas or auxiliary gas. Additional ports can be added.

Sample loop

There are 13 models to choose from, providing a convenient way to meet different quantity requirements.

Real time measurement of sample temperature

A movable temperature measuring thermocouple is placed at the top of the sample bed.

4 independent MFCs

In addition to controlling the carrier gas and process gas, there is also an MFC that independently controls the auxiliary gas (which can be mixed with the carrier gas or process gas).

High precision Mass Flow Controller (MFC)

The flow rate is 5-50ml/min (under standard conditions). Other ranges can be selected according to requirements.

Furnace

The temperature range is -130 ℃ to 1200 ℃, and it can be heated linearly at a rate of 1-50 ℃/min.

Liquid evaporator

Equipped with a heatable spray type saturator, it can easily introduce volatile liquids.

Air cooling components

Automatic control, quickly cooling the furnace through air blowing to shorten the experimental time.

Multiple types of sample tubes

Quartz U-shaped tubes that can accommodate samples of various sizes to accommodate the volume and size of different catalyst samples. The sample form can be powder, particle, strip or honeycomb.

Product Features

Mixing function

AMI-300S has gas mixing function and can replace expensive gas mixers, such as conducting TPR or TPO experiments that require multi-component gases.

The sample is easy to load

Mobile shell furnace makes it easy to remove and load sample tubes.

Insulation zero station

Ensure that the gas does not come into contact with the sample during the calibration pulse process to improve accuracy.

Overall pipeline insulation

All valves and pipelines are placed in a heatable and insulated box to prevent condensation.

External mass spectrometer

Real time integration of MS data and AMI-300 data is achieved through Direct Data Exchange (DDE).

Cold trap

A cold trap filled with desiccant can be installed downstream of the sample tube to remove condensates before flowing through TCD.

Quantitative injection port extraction

Provided a quantitative needle injection port for precise calibration of the quantitative ring volume.

TCD detector

A high-precision 4-fire TCD detector with high linearity, accuracy, sensitivity, and stability. There are different filament materials to choose from.

Auxiliary detector

Can accept any auxiliary detector that provides analog voltage output, such as flame ionization detector (FID).

Safety protection

Independent furnace over temperature protector, gas safety valve, check valve, circuit breaker, and TCD anti dry burning system.

Software Control

The AMI-300 S is a fully automatic instrument controlled by a computer, with reliable data and easy operation.
It is not necessary to have an operator on duty all the time during the experiment. Can be installed on Windows based computers, can be connected to the internet, and in addition to controlling instruments, the computer can also manage other laboratory tasks.
The "Overview" interface displays the device status at a glance, providing information such as the position of all valves, gas type, temperature, and detector signals for each port. The change in line color can indicate the current flow path.
Fully automatic control of valve switching, reaction temperature, heating rate, gas flow rate, gas mixing parameters, and detector parameters.

The powerful software control function of AMI series

Experimental program setting interface

Users can flexibly select or edit TPD, TPO ,TPR , TPRS, Pulse chemical adsorption, quantitative ring calibration experiments, etc. can be set up with up to 99 programs to achieve full automation of adsorption, desorption, and chemical reactions. The complete experimental setup can be completed within a few minutes and saved for future use or modification.

Instrument safety protection program setting interface

The software has an alarm program that can implement various security protection mechanism settings. In manual mode, simply click the mouse on the icon to switch any valve. You can input gas flow rate and set temperature values from the page.

Interface for collecting mass spectrometry data

Can be connected to mass spectrometry (MS) or gas detectors, supports multiple external detectors, provides series and parallel connection methods, can embed mass spectrometry (MS) data acquisition into AMI software, and achieve the same file export of TCD&MS; data

Powerful data analysis capabilities

The data processing software can complete the fitting, peak separation, integration, differentiation, and superposition processing of signal peaks, thereby obtaining the characteristic information of the sample, including the surface characteristics of the catalyst, the distribution of surface acidic/alkaline sites, activation energy, reaction kinetics data, etc.

Data analysis interface

Calculation of adsorption capacity

Peak integration interface

Automatic peak fitting interface

performance parameter