Currently, natural gas (NG) is an economically proven source of helium with up to 8 mol% concentration. Helium extraction at earlier stages in the natural gas liquefaction plant shows a motivating initiative to improve the economics and environmental…
Natural gas liquefaction allows to transport this energy vector over long distances from stranded reserves to the market. Pure Refrigerant Cascade processes will be responsible for more than 105 mtpa of the LNG base-load production by 2021. Classical…
A novel concept for energy integration across the liquefied natural gas (LNG) supply chain is proposed by using liquid air as a medium for recycling cold energy. This allows the natural gas liquefaction and LNG regasification stages to be integrated…
Multi-component refrigerant compression refrigeration cycles have a high coefficient of performance and difficult controllability. In these systems, it is not easily possible to keep the ratio of stream compositions constant in the event of a leak.…
Taking advantage of the refrigerating effect in the expansion at an appropriate temperature, a fraction of high-pressure natural gas transported by pipelines could be liquefied in a city gate station through a well-organized pressure reducing process…
Recovery and purification of ethane has a significant impact on economic benefit improvement of the high-ethane content natural gas. However, current LNG-NGL integrated processes mainly focus on conventional natural gas, which are not applicable to…
This paper presents a surrogate-assisted framework to solve constrained black-box optimization problems, which is applied to the optimal single-mixed refrigerant natural gas liquefaction processes design. This approach uses kriging models as…
This paper presents a framework to solve the constrained black-box simulation optimization problem that arises from the optimal energy-efficient design of single-mixed refrigerant natural gas liquefaction process using reliable process simulator.…
In this chapter, the application of energy and exergy analyses to cryogenic and liquefaction systems is described. Cryogenic engineering is the design, development, and improvement of low-temperature (usually below −150°C or 123K) systems and…
This study unfolds the advanced process configuration modification in the evolution of a dual mixed refrigerant (DMR) process for natural gas liquefaction, followed by its optimization through a unique approach i.e., teaching–learning self-study…
Multi-component refrigerant compression refrigeration cycles have a high coefficient of performance and difficult controllability. In these systems, it is not easily possible to keep the ratio of stream compositions constant in the event of a leak.…
Natural gas liquefaction allows to transport this energy vector over long distances from stranded reserves to the market. Pure Refrigerant Cascade processes will be responsible for more than 105 mtpa of the LNG base-load production by 2021. Classical…
This study proposes an advanced natural gas liquefaction process by applying liquid air to the propane pre-cooled mixed refrigerant (C3MR) process. Being the most efficient process, the C3MR process has the largest market share in the natural gas…
• A numerical model of liquid injected seal is built and validated. • Gas velocity has stronger effect on flow uniformity than liquid velocity. • Liquid pressure drop is always larger than that of gas under the same condition. • An empirical…
A novel concept for energy integration across the liquefied natural gas (LNG) supply chain is proposed by using liquid air as a medium for recycling cold energy. This allows the natural gas liquefaction and LNG regasification stages to be integrated…