A large number of heat flows at various temperature and pressure levels exist in a polygeneration plant which co-produces electricity and chemical products. Integration of these external heat flows in a heat recovery steam generator (HRSG) has great potential to further enhance energy efficiency...

We propose in this paper an integrated energy strategy based on a systems approach to address the energy challenges and energy dilemma in China. First, we give a review of existing approaches to energy planning and strategic management, followed by a discussion on the major relationships among...

Coal–water slurry (CWS) preheating vaporization technology is an important new technology for the future development of Integrated Gasification Combined Cycle (IGCC) systems, providing an opportunity to improve the energy efficiency of wet feed gasification processes. This manuscript...

This study analyzes the material utilization flow, including element carbon (C) and hydrogen (H), together with the energy saving ratio to quantify the material utilization and energy conversion in a coal-based polygeneration system producing methanol and electricity. The C utilization ratio and...

Coal based polygeneration, a technology that couples power generation and chemical production, is a promising solution to the challenges of fossil fuel depletion and greenhouse gas emissions. Carbon monoxide shift process is a key unit in polygeneration, which adjusts hydrogen and CO ratio...

While most of previous studies on China's energy conservation took the huge country as a whole, this manuscript revealed the obvious regional disparities in energy consumption of China's 30 provinces. Based on a hybrid energy input–output model, the total energy consumption of different...

A new concept of ‘low-carbon towns’ (LCTs) has emerged in the urban planning and development of China in recent years to face the challenge of global climate change. This manuscript presents the current status, basic concepts, and town practices for the development of LCTs in China. First,...

The future of oil has become an important topic of the discussion of energy policy in China. This paper attempts to present a full picture of the current status and future trends of China’s oil development through system analysis. First, we map a Sankey diagram of China’s oil flow to reveal...