An alternate wind power integration mechanism: Coal plants with flexible amine-based CCS

Abstract

a b s t r a c tThis paper explores a solution to problems associated with two promising technologies for decarbonizing the electricity generation system: high costs of energy penalty of carbon capture and storage, and the intermittency and non-dispatchability of wind power. It looks at the optimal design and operating strategy of a hybrid system consisting of a coal plant retrofitted with a post-combustion amine-based Carbon Capture & Storage (CCS) system equipped with the option to perform partial CO 2 capture, and a co-located wind farm. A linear optimization model determines the optimal component sizes for the hybrid system and capture rates while meeting constraints on annual average emission targets of CO 2 , and variability of the combined power output. Economic benefits result from capturing less CO 2 during high electricity price time periods and capturing more CO 2 during times of relatively low electricity prices or times when integrating wind power output would exceed the transmission capacity of the connector lines. The hybrid system has Levelized Cost of Electricity (LCOE) and Cost of Carbon Capture (CoC) comparable to those of a new Natural Gas Combined Cycle Power Plant (NGCC), and provides a mechanism for muting the variability of wind power in the same way an energy storage system would.

Demonstrating flexible operation of the Technology Centre Mongstad (TCM) CO2 capture plant

“…Thermal power plants with CCS can take on the essential role of providing dispatchable low carbon capacity, crucial in balancing an energy system with high penetration of intermittent renewables [4,5,6,7,8,9,3,10]. Thus, exible operation of both thermal power plants and CO 2 capture plants will be necessary to coordinate the balance between electricity demand and CO 2 emissions reduction targets [11,12,13,14,15,16].…”

A nonlinear interval number programming algorithm for CO2 pipeline transportation design under uncertainties

“…Step 1: Substitute engineering and economic models into Eqn (1). Construct the general pipeline optimization model.…”

“…Carbon dioxide is generally considered as one of the main reasons for climatic variation . Carbon capture, utilization, and storage (CCUS) is regarded as a powerful technological solution for reducing global CO 2 emissions, which includes the three sub‐systems of CO 2 capture: transportation, utilization, and storage.…”

“…C arbon dioxide is generally considered as one of the main reasons for climatic variation. 1,2 Carbon capture, utilization, and storage CO 2 transportation as a link to transport CO 2 from the source to the oil field for CCUS projects. [8][9][10] However, uncertainties always exist in practice in pipeline design, which strongly affect the optimization results and may lead to unnecessary cost.…”

Exergy and Economic Evaluation of a Hybrid Power Plant Coupling Coal with Solar Energy

“…Ong et al [2] and Duan et al [20] proposed the hybridization of coal plants with fuel cells. Bandyopadhyay et al [21] studied the effect of coupling wind energy with coal. Rashid et al [22] studied the design of a hybrid photovoltaicwind-diesel energy system at coastal areas in Bangladesh in order to achieve the maximum power output from renewable sources while keeping the cost of electricity to a minimum.…”