Shale　gas　and　flue　gas　complementary　co-conversion　for　simultaneous　value　added　chemicals　synthesis　and　carbon　capture,　utilization　and　storage　are　crucial　way　to　energy　source　utilization　and　carbon　emission　mitigation.　This　paper　put　forward　a　novel　process　design　converting　shale　gas　and　flue　gas　into　value　added　chemicals　including　sulfur,　urea　and　methanol.　Three　scenarios,　urea　and　methanol　parallel,　urea　priority　and　methanol　priority　cases,　are　placed　to　make　comparison.　Process　simulation　and　pinch　analysis　are　employed　to　simulate　the　whole　process　and　synthesize　heat　exchange　network.　Waste　heat　recovery　and　reuse　of　ready-made　CO2　and　N2　in　flue　gas　greatly　reduce　the　total　energy　consumption　under　same　amount　of　chemicals　production　and　CO2　capture　over　individual　production　basis.　Tech-economic　and　environmental　analysis　results　indicate　that　the　urea　priority　scenario　process　is　superior　in　economic　performance　and　its　net　present　value　is　109.5　MM$,　the　methanol-urea　parallel　scenario　has　the　lowest　greenhouse　gas　emission,　367.7　kton　CO2-Eq/year　while　the　methanol　priority　process　has　highest　CO2　utilization　proportion　55.57%.　This　work　is　great　progress　for　shale　gas　energy-efficient　and　economical　conversion　to　chemicals　and　lower　energy　penalty　of　flue　gas　CCUS　of　coal-based　power　plant.　©　2020　Elsevier　Ltd