Using Dynamic Simulation to Improve a PRICO LNG Liquefaction Plant Operation

Guofu delivered this presentation at 2016 AICHE Spring meeting in Houston

Unveil the Mystery of Air Products APCI C3MR LNG Liquefaciton Process in HYSYS

You are an LNG professional. You understand Air Product C3MR is the most popular LNG liquefaction process. But do you really know all the ins and outs of the C3MR process? All the mystery of the APCI C3MR LNG process will be unveiled in this video.

Using Dynamic Simulation to Increase the Output of a PRICO LNG Liquefaction Plant

The Problem

Do you ever want to increase the output of your PRICO LNG liquefaction plant? You used a steady state process simulator and designed a PRICO LNG plant to liquefy 280,000 lb/hr natural gas to -250 F. After you deliver to site, you are told that the natural gas flow will increase by 20% to 336,000 lb/hr. Do you think your PRICO LNG plant can still handle it?

Do You Really Know How Your PRICO LNG Plant Performs at Off-Design Conditions?

You designed your PRICO LNG plant, you know what it is supposed to do at the design condition. Do you really know how it performs at off design conditions?

Two rate based process simulation models are developed by Guofu Chen. One is a fast rating method utilizing UA, while the other method embeds Aspen EDR to rigorously model the performance of the plate-fin heat exchangers.

Unveil the Top Secret of Mixed Refrigerant Compositions used in the LNG Liquefaction Process

What's the top secret you think when it comes to LNG liquefaction process? There are different technologies, such as C3MR by Air Products, Cascade process, Single Mixed Refrigerant SMR by Black Veatch and Dual Mixed Refrigerant DMR by Shell. For each process, there are secrets for the optimum refrigerant flow, pressure and temperature. However, the top secret among all the secrets is the mixed refrigerant compositions. In general, process engineers spend days and nights to optimize the compositions. Yet, the solution might not be found. In this video, the top secret is unveiled to teach you how you can optimize the mixed refrigerant compositions in a matter of minutes.

Small scale LNG: Dresser-Rand LNGo liquefaction power

Dresser-Rand seems to be the market leader for small scale LNG. The company just released their first LNG system called "LNGo". The specifications are:

LNG Liquefaction Power Calculation

This blog shows you how you can calculate the LNG (Liquefied Natural Gas) liquefaction power. To liquefy the natural gas at 50 bara and 15 C, approximately the liquefaction power is 0.25 kWh/kg or 10 kW/(ton/d). That's to say, to liquefy 1 kg LNG, about 0.25 kWh energy is to be consumed. For a 5 million metric ton per annum (mmtpa) LNG liquefaction plant, the power consumption is about 137 MW. At the end of this blog, you can download the calculation file for details provided by +Guofu Chen.