Global Syngas and Derivative Market Size study with COVID Impact, By Feedstock (Coal, Petroleum, Natural Gas and Biomass), by Technology (Partial Oxidation, Steam Reforming, Auto-Thermal Reforming, Biogas Gasification and Combined Reforming) by End User (Chemicals, Power Generation, Liquid Fuels, Gaseous Fuels and Combined Reforming) and Regional Forecasts 2020-2027