Green Car Congress

MAY 16, 2014

Studies have found that despite meeting more stringent regulatory standards for exhaust emissions during type approval, many vehicles equipped with selective catalytic reduction (SCR) systems have significantly elevated emissions of NO x during in-use driving—particularly when operating in urban traffic. —Lowell and Kamakaté.

Conversion 210

Conversion Emissions Exhaust Convert 210

Green Car Congress

FEBRUARY 5, 2020

Manufacturers continue to optimize diesel emission controls, such as DOC, DPF and SCR, in order to promote uniform catalyst coating, improve NO x conversion efficiency, reduce back pressure on the engine, and reduce thermal mass. Better catalysts and urea dosing systems can achieve high NOx conversion during lower temperature operation.

Emissions 291

Emissions Diesel Engine 2010 291

Green Car Congress

JUNE 11, 2019

The MECA assessment is based on the implementation timeline presented by CARB staff at a January 2019 public workshop as well as the assumptions laid out in the CARB staff white paper released in April 2019. Some of these strategies can be deployed on cold-start to heat up aftertreatment and keep it hot under low engine load operation.

Standards 191

Standards Diesel 2019 Emissions 191

Green Car Congress

OCTOBER 3, 2009

ConocoPhillips will demonstrate new advancements that improve conversion efficiency and economies of scale for carbon capture systems at a petcoke-based 683-megawatt integrated gasification combined cycle (IGCC) power plant adjacent to its existing refinery in Sweeny, Texas.

Carbon 210

Carbon Industrial Industry Coal 210