(83b) Eco-Friendly Natural-Gas Monetization Complex for Simultaneous Productions of Power, Fertilizer, Methanol, and LNG with Inherent Carbon Capture

The continuous increase in global population, growth of energy demand, and rising atmospheric emissions present great challenges to the world. As the most abundant, clean, and cheap energy/material resource on this planet, natural gas should be comprehensively employed to meet these challenges with eco-friendly manufacturing processes. In this paper, a conceptual design of a super industrial complex based on the systematical utilization of natural gas has been developed, modeled, and analyzed. It includes six subsystems: (i) an Allam-cycle power plant (ACPP); (ii) an air separation unit (ASU); (iii) an ammonia plant (AP), (iv) a urea (UFP) plant: (v) a liquified natural gas plant (LNG), and (vi) a methanol plant (MP). This A³ULM complex employs natural gas as the major feedstock. Through the optimal integration of energy/material streams among six subsystems, the A³ULM complex can simultaneously produce multiple products effectively and efficiently, such as net power, fertilizer, pure nitrogen, LNG, methanol, pipeline-ready CO₂, and LP steam. Equally important, the A³ULM complex itself has very low carbon emissions during its manufacturing process. The developed A³ULM complex has been virtually modeled and demonstrated through rigorous simulations. Its salient economic, environmental, and societal benefits have also been provided.