RICE NESHAP

RICE NESHAP Introduction

RICE NESHAP stands for Reciprocating Internal Combustion Engines National Emissions Standards for Hazardous Air Pollutants. These are Federal Regulations introduced by the US Environmental Protection Agency (EPA) under the provisions of the Clean Air Act and amendments.

They apply to stationary (non-road) engines, classified as compression ignition (CI or diesel) and spark ignition (SI). The SI or spark ignition engines use natural gas, digester, landfill, biogas, wellhead, or other methane-based gases as the fuel source.

The full regulations can be found at
http://www.epa.gov/ttn/atw/rice/ricepg.html.

Requirements of the Regulation

The specific requirements are based on several factors - fuel type, engine size, continuous or emergency use only, being classed a major or minor source and location just to name a few. Determining how RICE NESHAP regulations will affect your operations- this is where the Gill Distribution Network can assist you.

The Gill Air/Fuel Ratio Controller is widely known and recognized as the best controller on the market today for both rich burn and lean burn applications. However, this is only one part of a complete package needed to satisfy the requirements.

Our distributor network has the resources and related products (catalytic converters, emissions monitoring, etc.) to assemble a complete package tailored for your specific needs.

This coupled with a competent technical staff for proper installation and ongoing mandated testing makes Gill products and our Distribution Network your best choice for compliance.

Technology Explained

The Links below allow you to review and better understand the major components used to assist in or have a direct impact on Emissions Reductions from Gas-Fired engines:

Air/Fuel Ratio Control

Inductive Ignition

Catalytic Converters

Lean-Burn Strategies

Gill Distribution Network - US and CANADA

EASTERN UNITED STATES

WESTERN UNITED STATES

GILL USA SALES AND TECHNICAL SUPPORT

WESTERN CANADA

Select the distributor in your region - they are ready to respond to your needs for complying with the RICE NESHAP regulations utilizing cost-effective Gill products and related items to provide a complete emissions solution.

NOTE
Financial assistance may be available to offset the costs incurred to upgrade engines to meet the new regulations. Please ask your distributor what may be available in your area.

Additional Information

To serve your needs Gill has provided additional topics and links to other pertinent data for your convenience.

Reducing Emissions from SI Engines

RICE Summary Table Of Requirements

Stationary Reciprocating Internal Combustion Engines: Applicability Flowchart

How to reduce emissions from an SI (Spark Ignition) engine

To reduce emissions from an SI engine requires the following:-

• 1. The engine must be in good working order and properly serviced.
• 2 a. A rich burn engine needs a three way catalyst (TWC);
• 2 b. An engine with a TWC needs an air/fuel ratio controller (AFRC) to hold the engine at the correct operating point for the TWC.
• 3 a. A lean burn engine needs an ignition system capable of reliably igniting a lean air/fuel mixture;
• 3 b. It also needs an AFRC to run the engine at the correct operating point which may well change with engine load;
• 3 c. It may also need an oxidation catalyst.

Information on this website relates specifically to Spark Ignition (SI) engines running on natural gas or other methane-based gases. These types of engines can run rich burn (also known as lambda = 1 or stoichiometric) or lean burn (lambda > 1).

Introduction to range - Emissions Control

Gill Instruments supplies the following equipment to help control emissions from spark ignition stationary engines whether rich burn or lean burn:-

AF120 Air/fuel ratio controller (AFRC)

The Gill AF120 is an Air/fuel ratio controller (AFRC). The same controller can be used both rich burn and lean burn. It uses a readily available exhaust oxygen sensor (also known as a lambda sensor) to sense the engine's operating point and it drives a simple fuel bypass valve that allows that operating point to be adjusted automatically to keep the engine in compliance. A key issue for emissions control systems is the ability not only to achieve low emissions but also to continue to maintain them for extended periods. AF120 has an unparalleled reputation for achieving this.

Click here to learn more about AF120.

GS Ignition Systems

Gill's GS Ignition Systems are inductive ignition systems that offer the long spark duration (up to 2ms) and high spark energy needed to ensure full combustion (and so minimal emissions) under all conditions including running very lean. The long spark duration and high spark energy are ideal for lean burn engines, and also for rich burn where it is essential to avoid any risk of misfire which can cause poisoning of the catalyst. Many of our customers have fitted GS Ignition Systems and been able to achieve low emissions simply by being able to run lean without needing an oxidation catalyst.

Click here to learn more about Gill Ignition Systems.