ASPROC – Sample Conditioning System
Sample conditioning system is usually needed to adjust and adapt the condition of sample from a process line in order to get the best condition sample flowing into the process analyzer. It must be the most critical part on designing a complete package of analyzer since the wrong sample conditioning system design may bring into the worse measuring data.
Our Sample Conditioning systems are designed to provide the sample in compatible condition with the analysers measurement technique.
We overall assure the compliance with the GPA Standard 2166-05, API 14.1, ISO 10715, API MPMS 14.1.
Where a representative sample is, “A sample having the same composition as the material sampled, when the latter is considered as a homogeneous whole at the pressure and temperature of line”.
The intrusive liquid elimination is done inside of the pipeline therefore the gas and liquid are at pipeline conditions of pressure and temperature. This assures compliance with the GPA Standard 2166-05, API 14.1, ISO 10715, API MPMS 14.1. standards for removal of liquids from a natural gas sample. Use a membrane tipped probe whenever possible.
GPA 2166-05 Appendix B.1.8 states, “To effectively separate the unwanted liquids and to collect a representative sample of the vapor phase of the product stream, it is imperative that any liquid separation device operates at flowing temperature and pressure conditions.”
Further, GPA 2166-05 B.2.1 correctly notes that, “The insertion membrane filter probe meets the requirements set forth in B.1.8 in that the membrane filter is directly mounted in the product stream.”
a) Extract representative sample of the gas (most important task)
b) Reduce (regulate the pressure )
c) Transport the sampre to the analyzer
d) Protect the analyzer (analyzer “safety net”)
e) Control flow rate
f) Remove contaminants
Maintaining the sample in the gas phase at all times after extraction. At least 30 °F of de-saturation is required by the API 14.1 standard to keep away from the hydrocarbon dew point (HDP).
The probe Model 755™ can be inserted and retracted from a pressurized line through a full opening valve. Its tip contains Genie® Membrane Technology™ which separates unwanted liquid aerosols and droplets from the gas sample at process conditions, in compliance with the GPA Standard 2166-05, API 14.1, ISO 10715, API MPMS 14.1, ISO 6976 Natural gas – Calculation of caloric values, density, relative density and Wobble index from composition.
The Model 755™ is an adjustable length, membrane tip probe regulator designed to sample transmission quality natural gas. The pressure regulator is built into the probe immediately downstream of the membrane, inside of the pipeline. Heat is transferred from the flowing pipeline gas to the regulator to prevent excessive Joule-Thomson cooling, helping to prevent condensation during pressure letdown.
The PIP™ Model 702 is a simple, safe and economical solution to extracting a representative vapor phase sample from a source. Compared to the PIP™ Model 701, the Model 702 is designed for sampling at a specific depth in a pressurized pipeline so each length is customized to fit your application. Our Pressure Balance™ technique effortlessly lowers the 702 probe into a pipeline without the force and bulky equipment associated with pneumatic or hydraulic methods. Once installed, the installation housing can be replaced with a shorter housing to accommodate partial retraction of the probe during pigging operations.
One to Four Stage Heated Pressure Regulator
The Model JTR-H™ is a revolutionary product containing four stages of heated pressure regulation in one 316 stainless steel housing. The design of the JTR-H™ separates it from current multi-stage heated regulators that are typically limited to two stages. Specifically designed for gas analytical systems, the JTR-H™ prevents condensation of the sample gas from occurring as a result of Joule-Thomson (JT) cooling during the pressure reduction process of high pressure and high dew point gases or due to low operating or ambient temperatures.
The need for the JTR-H™ is best illustrated by referencing the natural gas phase diagram below. For this particular gas composition, the only regulator capable of preventing condensation and complying with the API 14.1 requirement of maintaining the sample 30°F above the hydrocarbon dew point is the JTR-H™.
Analytically Correct Engineered Systems (ACES) for natural gas:
“The objective of the Standards Normative Requirements listed below, to do a sampling procedure, to obtain a representative sample of the gas phase portion of natural gas, Bio Methane and BioLG A representative sample is, “A sample having the same composition as the material sampled, when the latter is considered as a homogeneous whole at the pressure and temperature of line”.
A probe designed for insertion into a pipeline with incorporate particle filters and moisture membrane filters for sampling all gases and without membrane for sampling all liquids.
In compliance with the GPA Standard 2166-05, API 14.1, ISO 10715, API MPMS 14.1, ISO 6976 Natural gas – Calculation of caloric values, density, relative density and Wobble index from composition.
The systems are designed to meet specific application needs; ensuring sample integrity is maintained throughout the sample extraction and pre-conditioning process. It is best suited for sampling natural gas near its dew point.
Genie® Membrane Separators™; Liquid/Gas and Liquid/Liquid separators.
Membrane type should be selected based on the type of liquid to be removed.
The membrane is NOT rated in micron size; however, the effective pore size is less than 1 micron.
All membrane types are extremely inert.
Membrane Composition: The membrane composition is proprietary. However, it will not be easily attacked by any components in your system, nor will it preferentially absorb any components in your system. The membrane does not influence the gas composition, which flows through it. The membrane is completely inert to your system.
Phase Separation Membranes – separate liquid from vapor sample
Liquid/Liquid Membranes – separate immiscible liquids from hydrocarbon liquids
Merlin Cyclone Separator:
The MERLIN Cyclone Separator is an innovative and patented multistage separation technology that protects on-line gas analyzers by preventing arrival of liquids and solid particulates. The MERLIN separator offers particle separation (up to 10 microns) from liquids by centrifugation. It employs a patented and innovative technology to protect on-line gas analyzers over a wide range of operating conditions.
Direct Manual Sampling for Liquids and Gas.
This sampling systems, in compliance to API 14.1, GPA 2166 AND ISO 10715, for liquid and Gas, is provided with a purging system for sampling point and a sampling cylinder. This system allows carrying out uncontaminated sampling in complete safety, both for the operator and the environment, as purging, sampling, depressurizing cycles are performed with a single one-way operating level, which allows managing various interfaced valves.
Sample Cylinders and Accessories.
The stainless-steel sample cylinders provide safe containment for storage and transportation of both liquid and gases. Applications include, hydrocarbon sampling refineries and condensate from fossil fuel.