Mini LNG Plant for Pipeline Gas, Coalbed Methane, Shale Gas, Associated/Flare Gas, Coke Oven Gas, Remote Natural Gas Well

Basic Info

Model NO.	Modular LNG plant
Product Name	LNG Liquefaction Plant
Process	Mixed Refrigerant Cycle
After-Sales Service Provided	Engineers Available to Service Machinery Overseas
LNG Outlet Temperature	162ºC
Advantages	Performance Operation and Fast Return on Investmen
Warranty	18 Months
Lead Time	to Be Negotiated
Transport Package	Sea Worthy Packing
Specification	1MMSCFD~75MMSCFD
Trademark	GreenFir
Origin	China
Production Capacity	30 Sets Per Year

Product Description

Company Profile

Sichuan GreenFir Machinery Equipment Co., founded by a group of qualified and experienced executive managers and engineers with the objective of providing equipment and services(process design, detail engineering, construction management, procurement and technical inspection) to the clients in a large number natural gas projects. The main products includes LNG plant, natural gas dehydration equipment, natural gas sweetening equipment, LPG plant, C2+ product recovery equipment, demethanizer, deethanizer, etc.
The company has obtained a number of industry certitications, such as ASME, special equipment production license, pressure vessel design and manufacturing license, etc. GreenFir has two manufacturing based in Chengdu City and Ziyang City, with a manufacturing workshop area of 35000 square meters

Product Description

What is LNG?
Liquefied natural gas is gas that has been cooled to -260°F (-160°C) and converts to a liquid state. When natural gas is in a liquid form, it takes up approximately 1/600th of the space it would as a vapor, making transportation much more efficient and economical.
LNG is mostly methane plus a small percent of ethane, propane and butane, and trace amounts of nitrogen.

How is natural gas liquefied?
Natural gas is converted to a liquid in a liquefaction plant, or "train". An LNG train performs three main processes:1. Pretreatment
Dust and slug (water and condensate) is removed along with hydrogen sulfide (H2S) and mercury (Hg). These pollutants can cause corrosion and freezing problems, especially in aluminum heat exchangers.
2. Acid Gas Removal and Dehydration
Carbon dioxide (CO2) is absorbed and removed from natural gas with an amine absorber (acid gas removal or AGR) and an adsorbent is used to remove water. These impure substances are removed so that ice will not form during the subsequent liquefaction process.
3. Heavy Hydrocarbon Separation and Liquefaction
Heavy hydrocarbons (C5+) are removed by fractionation before liquefaction.

The main system of whole set of LNG plant:
1. Natural gas filtering, metering and pressure regulation system
2. Natural gas purification system(acid gas removal unit, dehydration unit, mercury removal unit)
3. Natural gas liquefaction system(cold box, MR compressor, etc.)
4. LNG storage system
5. LNG loading system
6. Instrument control system(DCS, SIS, FGS, etc.)
7. Electrical control system
8. Utilities(instrument air and PSA nitrogen system, desalted water system, heat transfer oil system, flare gas system)
9. Feed gas booster compressors(Optional)
10. Heavy hydrocarbon removal system(Optional)
11. Nitrogen removal system(Optional)
12. Power generators(Optional)

GreenFir owns a variety of self-developed natural gas liquefaction technologies, such as mixed refrigerant cycle (MRC) and N2 cycle. And GreenFir develops optimized single-stage mixed refrigeration (SMR), C3 pre-cooled mixed refrigeration (C3MR) and double mixed refrigeration (DMR) considering different cooling principles and working conditions. LNG plants are typically sized to produce from 20 to 1440 tons per day of LNG. Product Parameters

Design scale	30,000Nm3/d	50,000Nm3/h	100,000Nm3/d	200,000Nm3/d	300,000Nm3/d	500,000Nm3/d	1,000,000Nm3/d	2,000,000Nm3/d
	1.1MMSCFD	1.9MMSCFD	3.8MMSCFD	7.6MMSCFD	11MMSCFD	19MMSCFD	38MMSCFD	76MMSCFD
Acid gas removal method	MDEA
Design life	20 years
Operation flexibility	50~110%	50~110%	50~110%	50~110%	85~105%	85~105%	85~105%	85~105%
Continuous running time	8000 hours

The equipment is customized. GreenFir will design the LNG plant according to the flow rate, pressure and components of natural gas the clients provide.
Detailed Photos

Dehydration, mercury removal skid and acid gas removal skid

Natural gas pretreatment typically consists of mercury removal, gas sweentening and drying. Depending on the LNG processing steps and the hydrogen sulfide(H2S) and carbon dioxide(CO2) concentration in the natural gas, it is necessary to remove H2S and CO2 from acid natural gas. Mercury guard beds are recommended to protect people and equipment.

Natural gas liquefaction skid

Mixed refrigerant cycle, nitrogen expansion refrigeration are choosed according to the actual situation in clients' project.

LNG loading skid DCS control system

The LNG coming from the liquefaction cold box is loaded into the DCS, SIS, FGS system are set for central control and safety
LNG tanker or LNG storage tanks by loading arms. supervision, control for the whole plant.

Note: All skids are customized according to the actual gas condition. The above are part of the key equipment. For more details please contact us.

Features and Benefits1. Shorter project period
1.1 24 weeks project period: 16 weeks for all processes from contract signing to product FOB delivery and 8 weeks from equipment installation to LNG production upon the complete of civil work, ensuring 60% project time reduction.
2. Higher economic return
2.1 5 month earlier for economic returns when compared with conventional LNG projects.
2.2 Bulk purchasing ensures lower product price.
2.3 Skid-mounted module ensures a lower onsite cost.
3. More flexible and scalable
3.1 Flexible for different kinds of feed gas including CBM, shale gas, associated gas, pipeline gas, flare gas, peak-shaving and biogas etc.
3.2 Scalable for combinable and expandable solution to meet requirements for project upgrading.
4. Intelligent remote control
4.1 Remote monitoring, real-time data acquisition by mobile phones, iPad and other terminals.
4.2 Independent FGS system for fire and gas alarm system and running control system.
5. Better services
5.1 Customer-focused services to supply professional and reliable follow-up inspection, fault handling and training services.Project Performance

No.	Project Name	Location	Qty	Year
1	300,000Nm3/d LNG re-liquefaction plant	China	1	2016.10
2	50,000Nm3/d wellhead gas recovery project	China	1	2016.11
3	30,000Nm3/d wellhead gas recovery project	China	1	2017.5
4	30,000Nm3/d mini LNG plant	China	2	2018.6
5	300,000Nm3/d heavy hydrocarbon removal skid	China	1	2019.4
6	600,000Nm3/d mini LNG plant	China	1	2020.1
7	Natural gas demethanizer column and deethanizer column	Kazakhstan	1	2020.7
8	100,000Nm3/d mini LNG plant	China	2	2021.1
9	3.5MMSCFD and 50TPD LNG plant	Iran	2	2021.4
10	Heavy hydrocarbon removal system of 100,000Nm3/d LNG plant	China	1	2021.6
11	Heavy hydrocarbon removal system of 60,000Nm3/d LNG plant	China	1	2021.9
12	50,000Nm3/d mini LNG plant	China	1	2021.10
13	100,000Nm3/d mini LNG plant	China	2	2021.12
14	17.88MMSCFD ethylene compressor station	Iran	1	2022.4
15	220,000Nm3/d mini LNG plant	China	1	2022.8
16	300,000Nm3/d mini LNG plant	China	1	2022.12
17	300,000Nm3/d flare gas recovery plant	Iran	1	2022.12
18	200,000Nm3/d amine sweetening package project	Iran	1	2022.12
19	Deethanizer rectification system	Kazakhstan	1	2023.3

FAQ

1. Are you manufacturer or trading company?
We are professional manufacturer of multi-components gas purification, separation and liquefaction equipment.
2. What's your advantage?
We provide you not only technology-leading, stable and reliable, cost-efficient equipment, but also solutions and after-sales services.
3. Have your engineers participated in any foreign projects?
Yes, our engineers have more than 20 years experience in our field and have participated in the design, manufacturing, installation and commissioning of the equipment in Turkey, Iran, Egypt, Nigeria, Russia, India, etc.
4. How can I get the exact price of the product?
Please tell us your specific requirements, so we can provide the most suitable products and solutions to you.